Patent Publication Number: US-2018031089-A1

Title: Applicator attachment having cams to convert oscillating rotational motion to orthogonal reciprocating motion

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is related to U.S. patent application Ser. No. ______ (Attorney Docket No. LORL-1-56574), entitled “APPLICATOR ATTACHMENT HAVING A FLEXIBLE MEMBRANE TO CONVERT OSCILLATING ROTATIONAL MOTION TO ORTHOGONAL RECIPROCATING MOTION,” filed Jul. 28, 2016, the entire disclosure of which is hereby incorporated by reference herein for all purposes. 
    
    
     SUMMARY 
     In an aspect, the present disclosure is directed to, among other things, an attachment to convert oscillating rotational motion to orthogonal reciprocating motion. In one embodiment, the converter assembly for converting oscillating motion to orthogonal reciprocating motion, the converter assembly generally includes an outer housing having a central axis; a follower movably associated with the outer housing and configured for reciprocating motion along the central axis, the follower including a cam following surface; and a cam rotatably couplable to the outer housing and configured for oscillating motion about the central axis with respect to the outer housing, wherein the interaction of the cam and the cam following surface may cause the follower to reciprocate along the central axis when the cam oscillates about the central axis. 
     In accordance with another embodiment of the present disclosure, a converter assembly for converting oscillating motion to orthogonal reciprocating motion is provided. The converter assembly generally includes an outer housing having a central axis, the outer housing having one of a slot aligned with the central axis and a protrusion; a follower having the other of the slot aligned with the central axis and the protrusion, wherein the protrusion is slidably receivable within the slot to restrict movement of the follower to reciprocating motion along the central axis, the follower including a cam following surface; and a cam rotatably couplable to the outer housing and configured for oscillating motion about the central axis with respect to the outer housing, wherein the interaction of the cam and the cam following surface may cause the follower to reciprocate along the central axis when the cam oscillates about the central axis. 
     In accordance with any of the embodiments described herein, the outer housing may include an aperture configured to receive an applicator tip. 
     In accordance with any of the embodiments described herein, the follower may further include an applicator tip mounting portion. 
     In accordance with any of the embodiments described herein, the applicator tip may be couplable to the applicator tip mounting portion. 
     In accordance with any of the embodiments described herein, the applicator tip may be an infuser tip. 
     In accordance with any of the embodiments described herein, the cam may further include a cam profile surface positioned to interface the cam following surface, wherein the cam profile surface may be a helix. 
     In accordance with any of the embodiments described herein, the converter assembly may be couplable to a personal care appliance handle through the outer housing. 
     In accordance with any of the embodiments described herein, the cam may be configured to interface an oscillating hub of the personal care appliance such that the oscillating motion of the oscillating hub is transferred to oscillating motion of the cam. 
     In accordance with any of the embodiments described herein, the follower may be movably associated with the outer housing by an elastic coupling. 
     In accordance with any of the embodiments described herein, the cam may further include a point configured to interface the cam following surface and cause the follower to reciprocate along the central axis. 
     In accordance with any of the embodiments described herein, the cam following surface may be arcuate. 
     In accordance with any of the embodiments described herein, the cam may include a recess with a cam recess profile surface, wherein the cam follower surface may closely interact with the cam recess profile surface to cause the follower to reciprocate along the central axis. 
     This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. 
    
    
     
       DESCRIPTION OF THE DRAWINGS 
       The foregoing aspects and many of the attendant advantages of the disclosed subject matter will become more readily appreciated as the same become better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein: 
         FIG. 1  is a front right top perspective view of one representative embodiment of a converter connected to a handle of a personal care appliance in accordance with an aspect of the present disclosure; 
         FIG. 2  is a rear left top perspective view of the converter of  FIG. 1 ; 
         FIG. 3  is an exploded front right top perspective view of the converter of  FIG. 1 ; 
         FIG. 4  is an exploded rear left top perspective view of the converter of  FIG. 1 ; 
         FIG. 5  is an assembled, cross-sectional view of the converter of  FIG. 1 ; 
         FIG. 6 a    is a partial cross-sectional perspective view of a cam follower assembly and a cam member of the converter of  FIG. 1 , showing the cam member in a first rotational position and the cam follower assembly in a first translational position nearer to the cam member; 
         FIG. 6 b    is a partial cross-sectional perspective view of a cam follower assembly and a cam member of the converter of  FIG. 1 , showing the cam member in a second rotational position and the cam follower assembly in a second translational position farther from the cam member; 
         FIG. 7  is a front right top perspective view of another representative embodiment of a converter in accordance with an aspect of the present disclosure; 
         FIG. 8  is a rear left top perspective view of the converter of  FIG. 7 ; 
         FIG. 9  is an exploded front right top perspective view of the converter of  FIG. 7 ; 
         FIG. 10  is an exploded rear left top perspective view of the converter of  FIG. 7 ; 
         FIG. 11  is an assembled, cross-sectional view of the converter of  FIG. 7 ; 
         FIG. 12 a    is a perspective view of a follower member and an oscillating hub of the converter of  FIG. 7 , showing the oscillating hub in a first rotational position and the follower member in a first translational position nearer to the cam member; 
         FIG. 12 b    is a perspective view of a follower member and an oscillating hub of the converter of  FIG. 7 , showing the oscillating hub in a second rotational position and the follower member in a second translational position farther from the cam member; 
         FIG. 12 c    is a perspective view of a follower member and an oscillating hub of the converter of  FIG. 7 , showing the oscillating hub in a third rotational position and the follower member in a third translational position nearest to the cam member; 
         FIG. 13  is an exploded front right top perspective view of another representative embodiment of a converter in accordance with an aspect of the present disclosure; 
         FIG. 14  is an exploded rear left top perspective view of the converter of  FIG. 13 ; 
         FIG. 15  is an assembled, cross-sectional view of the converter of  FIG. 13 ; 
         FIG. 16 a    is a partial cross-sectional perspective view of a follower member and an oscillating cam of the converter of  FIG. 13 , showing the oscillating cam in a first rotational position and the cam follower assembly in a first translational position farther from the cam member; 
         FIG. 16 b    is a partial cross-sectional perspective view of a follower member and an oscillating cam of the converter of  FIG. 13 , showing the oscillating cam in a second rotational position and the cam follower assembly in a second translational position nearer to the cam member; 
         FIG. 17  is a front right top perspective view of another representative embodiment of a converter in accordance with an aspect of the present disclosure; 
         FIG. 18  is a front right top perspective view of another representative embodiment of a converter in accordance with an aspect of the present disclosure; 
         FIG. 19  is a front right top perspective view of another representative embodiment of a converter in accordance with an aspect of the present disclosure; 
         FIG. 20  is a front right top perspective view of another representative embodiment of a converter in accordance with an aspect of the present disclosure; and 
         FIG. 21  is a front right top perspective view of another representative embodiment of a converter in accordance with an aspect of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The following description provides several examples that relate to cosmetic applicators. In that regard, application of a wide variety of cosmetic formulas to human skin is a common practice. To apply the cosmetic formula, an infuser tip can be used. Generally described, the infuser tip includes a concave surface or a similarly structured area that retains formula for application to the skin. Infusion of cosmetic formula penetrates the outer layer of the skin. In this regard, the infuser tips generally apply cosmetic formula to the skin with a reciprocating (e.g., tapping) motion. Unlike skin scrubbing tips, which typically use oscillating motion, a component of oscillation is not dominant with infusion (although, a component of oscillation may be useful in some applications). 
     Although existing personal care appliances for use with skin scrubbing tips typically use oscillating motion, the converter assemblies of the present disclosure allow use of infuser tips with a reciprocating motion without the need to purchase additional personal care appliances specifically configured for reciprocating motion. In this regard, a single oscillating personal care appliance can be used with both skin scrubbing tips and infuser tips, using the converter assemblies of the present disclosure. 
     As used herein, the term “oscillation” refers to motion that is a regular periodic motion bi-directionally about a neutral position in a plane largely parallel to the skin surface. As used herein, the term “reciprocating” refers to motion that is a regular periodic motion bi-directionally about a neutral position in a plane largely perpendicular to the skin surface. These two terms are not mutually exclusive and both motions can be combined create more complex motions. 
     The following discussion provides examples of systems and/or apparatuses of a converter assembly for a personal care appliance that is configured to convert oscillating motion of the personal care appliance to reciprocating motion at an applicator tip, such as an infuser tip to provide treatment to a subject&#39;s epidermis. The reciprocating motion at the applicator tip may be translational, rotational, etc., or a combination thereof. In use, the converter assembly reciprocates the removable applicator tip over a subject&#39;s skin in order to infuse a cosmetic formula or otherwise treat a user&#39;s skin. 
     Referring to  FIGS. 1-5 , a first exemplary embodiment of a converter assembly  100  for converting oscillating motion of a personal care appliance H to reciprocating motion at an applicator tip is depicted. The converter assembly  100  is shown in use with an infuser tip for implementing one or more methodologies or technologies such as, for example, providing infusion of a cosmetic material to a user&#39;s skin. For example, some cosmetic formulas have improved penetration properties when applied with a tapping motion to the user&#39;s skin. However, as discussed above, conventional personal care appliances are generally configured with an oscillating motor to provide a skin scrubbing motion, which is not well-suited for infusion of cosmetic formulas. 
     Using the embodiments of the present disclosure, conventional personal care appliances with oscillating motors can be used to infuse cosmetic formula through a user&#39;s skin. Accordingly, the embodiments herein can be used with conventional personal care appliances to enhance penetration of the cosmetic formula to the user&#39;s skin in a way that would be difficult to accomplish with direct application of the formula alone. In that regard, the embodiments illustrated in the FIGURES have been designed for use with an infuser tip for applying cosmetic formulas to the user&#39;s skin (e.g., serum, eye cream, night cream, day cream, night lotion, day lotion, hand cream, neck cream, anti-aging cream, moisturizer etc.). Embodiments of the present disclosure are also suitable for applying a cosmetic formula to any surface of the user&#39;s body or another suitable surface. 
     Although the converter assembly  100  and the other exemplary embodiments are described and illustrated as being used with an infuser tip, it should be appreciated that the converter assemblies shown and described herein may be used with any suitable applicator tip and for any suitable use. 
     Referring to  FIGS. 1-5 , the converter assembly  100  will now be described in detail. In the illustrated embodiment, the converter assembly  100  generally includes an applicator tip, such as an infuser tip  102 , removably coupled to a cam follower assembly  106 , and a cam member  108  movable by an oscillating hub  110  of a personal care appliance H, wherein oscillating motion of the cam member  108  causes reciprocating motion of the cam follower assembly  106  (and infuser tip  102 ). In this regard, the converter assembly  100  will be referred to hereinafter as a cam driven converter assembly  100 . 
     The cam driven converter assembly  100  is operably attachable to the personal care appliance H by interfacing the oscillating hub  110 . The oscillating hub  110  is secured to a shaft of an oscillating motor (not shown) within the personal care appliance H using a motor shaft slot  192 . The motor shaft is removably secured within the motor shaft slot  192  in a manner well known in the art such that rotation of the motor shaft oscillates the oscillating hub  110 . In some embodiments, the oscillating hub  110  is press-fit onto the motor shaft such that it is semi-permanently coupled to the personal care appliance H, and not intended for removal by the user. Further description of the attachment of the cam driven converter assembly  100  to the oscillating hub  110  will be provided below. 
     The converter assembly  100  is also removably attached to the personal care appliance H such that the converter assembly  100  may interface the oscillating hub  110 . Although the converter assembly  100  may be removably attached to the personal care appliance H in any suitable manner, in the illustrated embodiment, the converter assembly  100  includes at least one body locking slot  140  in an outer housing  104  that is configured to selectively interface a protrusion (not shown) on the personal care appliance H. The body locking slot  140  is a turn-to-lock type of slot configured to interface the protrusions of the personal care appliance H. In this regard, the protrusions travel in the body locking slot  140  as the converter assembly  100  is twisted with respect to the personal care appliance H. The shape of the body locking slot  140  provides a coupling to the personal care appliance H that can be selectively unlocked by pushing the converter assembly  100  further into the opening of the personal care appliance H while twisting the converter assembly  100  in the opposite direction as installation. In other embodiments, other attachment methods may be used to attach the converter assembly  100  to the personal care appliance H. As shown in  FIG. 2 , the combination of the converter assembly  100  and the oscillating hub  110  is generally designated as an appliance assembly  10 . 
     The infuser tip  102  will now be briefly described in detail. The infuser tip  102  is defined by a generally cylindrical body having an infusing surface  120  defined at one end of the body and an anchoring post locking tab  122  defined at the opposite end of the body (see  FIGS. 4 and 5 ). The anchoring post locking tab  122  is configured to removably accept an infuser tip anchoring post  154  of the cam follower assembly  106  (see  FIG. 5 ). To anchor the infuser tip  102  to the cam follower assembly  106 , the infuser tip anchoring post  154  is defined by a wider portion at the end of the infuser tip anchoring post  154  distal to the cam follower assembly  106 . As the infuser tip  102  is pressed onto the infuser tip anchoring post  154 , the anchoring post locking tab  122  flexes away from the infuser tip anchoring post  154  to provide clearance for the wider portion at the distal end, and then return to a position nearer the infuser tip anchoring post  154 . In some embodiments, the anchoring post locking tab  122  includes a protrusion to interact with the narrow portion of the proximal end of the infuser tip anchoring post  154  such that the infuser tip  102  is retained on the infuser tip anchoring post  154 . 
     As can be appreciated from the foregoing, the infuser tip  102  is configured to be removable from the cam driven converter assembly  100  without the removal of the cam driven converter assembly  100  from the personal care appliance H. More specifically, the infuser tip  102  is intended to be replaced independently from the remainder of the components of the cam driven converter assembly  100  such that a worn infuser tip  102  can be renewed or changed to an infuser tip with a different shape, suitable for use with a different formula, and/or suitable for use with a different skin type without replacement of other components. It should be appreciated that the infuser tip  102  may instead be removably secured within the cam driven converter assembly  100  in any other suitable manner. 
     As briefly noted above, the cam driven converter assembly  100  includes the outer housing  104 . The outer housing  104  will now be described in detail. The outer housing  104  is generally configured to enclose the cam follower assembly  106 , the cam member  108 , and the oscillating hub  110 . In this regard, the outer housing assembly  104  provides safety such that the user does not contact the moving components of the appliance assembly  10  besides the infuser tip  102 . 
     In the depicted embodiment, the outer housing assembly  104  is manufactured from multiple components, including a cup  130  removably securable to an outer housing  136 . However, in other embodiments, the outer housing assembly  104  is suitably manufactured from a single component or from more than two components. In embodiments where the outer housing assembly  104  is manufactured from multiple components, they are suitably joined using a variety of coupling methods, including adhesive, welding, co-molding, fasteners, pins, or the like. In some embodiments, the outer housing assembly  104  has components manufactured from plastic. In this case, the cup  130  further includes a cup welding surface  134  and the outer housing  136  further includes an outer housing welding surface  142 . During assembly of the cup  130  to the outer housing  136 , the cup welding surface  134  is sonically welded to the outer housing welding surface  142 . In other embodiments, the cup welding surface  134  and the outer housing welding surface  142  provide a position for adhesive, fastener, or pin attachment. 
     The cup  130  includes an infuser tip opening  132  sized and configured to receive and closely surround the infuser tip  102 , while allowing reciprocating movement of the infuser tip  102  during use. The infuser tip opening  132  defines a central axis A 1  running through the center of the cam follower assembly  106 , the cam member  108 , and the oscillating hub  110 , as shown in  FIGS. 3 and 4 . 
     Referring specifically to  FIGS. 3 and 4 , the cam follower assembly  106  suitable for converting oscillating motion of the cam member  108  to reciprocating motion of the infuser tip  102  will now be described in detail. The cam follower assembly  106  includes at least one cam follower configured to follow the cam member  108  as it oscillates. In the illustrated embodiment, the cam follower assembly  106  includes first and second cam followers  150  and  151  that are securable together. Although the first and second cam followers  150  and  151  may be secured together in any suitable manner, in the depicted embodiment, the first and second cam followers  150  and  151  are secured together through at least one pin  160  extending from one of the first and second cam followers  150  and  151  that is receivable within a pin aperture  162  that is defined in the other of the first and second cam followers  150  and  151 . 
     When secured together, an infuser tip anchor aperture  164  is defined between the first and second cam followers  150  and  151 . The infuser tip anchor aperture  164  is sized and configured to receive the infuser tip anchor  152  of the infuser tip  102 . However, in other embodiments, the infuser tip anchor  152  may be integrated into the cam follower assembly  106  such that it forms a single piece. 
     Aspects of the cam follower assembly  106  (defined by the first and second cam followers  150  and  151 ) for following the cam member  108  as it oscillates will now be described. The cam follower assembly  106  includes at least one upper cam follower ramp  156  disposed on a first side of the first cam follower  150  and a lower cam follower ramp  158  disposed on an opposite side of the first cam follower  150 . In the illustrated embodiment, the upper and lower cam follower ramps  156  and  158  generally define an overall helical shape that is configured to follow a correspondingly shaped portion of the cam member  108  as it oscillates. The upper and lower cam follower ramps  156  and  158  are configured to interface with and follow the cam member  108  as it oscillates to move the cam follower assembly  106  linearly along axis A 1 . In that regard, the cam follower assembly  106  must be restricted from rotating when interfacing with the cam member  108  (i.e, it must be limited to substantially linear movement along axis A 1 ). 
     The cam follower assembly  106  may be limited to substantially linear movement along axis A 1  in any suitable manner. In the depicted embodiment, the cam follower assembly  106  interfaces with the outer housing assembly  104  to prevent rotation of the cam follower assembly  106  when it is moved by the cam member  108 . More specifically, a cam follower clocking slot  138  extends axially along an interior surface of the outer housing assembly  104  that is configured to interface an outer housing clocking slot protrusion  166  extending laterally from an outer edge of the first cam follower  150 . The cam follower clocking slot  138  is configured to allow reciprocating motion of the cam follower  150  in the direction of the central axis A 1  and along the length of the cam follower clocking slot  138 , but generally prevents the cam follower assembly  106  from rotating or oscillating about the central axis A 1 . 
     In the illustrated embodiment, a plurality of cam follower clocking slots  138  provide numerous clocking locations for the cam follower assembly  106 . As shown in  FIG. 3 , each outer housing clocking slot protrusion  166  of the first cam follower  150  interfaces a single cam follower clocking slot  138 . In this regard, if first and second cam followers  150  and  151  are utilized, two corresponding cam follower clocking slots  138  interface the clocking slot protrusions  166  of each of the first and second cam followers  150  and  151 . In some embodiments, the cam follower assembly  106  utilizes more than two cam follower clocking slots  138  during use of the cam driven converter assembly  100 , which provide further stability, but may also increase friction of the assembly. 
     With the cam follower assembly  106  limited to substantially linear movement along axis A 1 , the cam follower assembly  106  will reciprocate when interfacing with the oscillating cam member  108 . In that regard, the cam member  108  will now be described in detail. The cam member  108  includes first and second cam protrusions  170  and  171  extending from an upper surface of the cam member  108  that are configured to interface with the first and second upper and lower cam follower ramps  156  and  158  of the cam follower assembly  106 . The first and second cam protrusions  170  and  171  are substantially identical; and therefore, only the first cam protrusion  170  will be described in detail. 
     The first cam protrusion  170  includes an upper cam ramp protrusion  172  and a lower cam ramp protrusion  174 . The upper cam ramp protrusion  172  is on a distal end of the first cam protrusion  170  and extends from the upper surface of the cam member  108 , and the lower cam ramp protrusion  174  is on a proximal end of the first cam protrusion  170  and extends from the upper surface of the cam member  108 . In the illustrated embodiment, the upper and lower cam ramp protrusions  172  and  174  substantially correspond in shape to the upper and lower cam follower ramps  156  and  158  such that the upper and lower cam ramp protrusions  172  and  174  have a generally helical shape. 
     The first and second cam protrusions  170  and  171  of the cam member  108  interface with the upper and lower cam follower ramps  156  and  158  of the cam follower assembly  106  to convert the oscillating motion of the cam member  108  to reciprocating motion of the cam follower assembly  106 . In this regard, the upper and lower cam follower ramps  156  and  158  of the first cam follower  150  are configured to abut the upper cam ramp protrusion  172  and the lower cam ramp protrusion  174 , respectively, of the first cam protrusion  170 . As discussed above, the upper and lower cam ramp protrusions  172  and  174  define upper and lower cam profile surface and the upper and lower cam follower ramps  156  and  158  define cam follower surfaces. As described above, the upper and lower cam follower ramps  156  and  158  and the upper and lower cam ramp protrusions  172  and  174  are in the shape of a helix in the illustrated embodiment. As a result, if the cam follower assembly  106  is not allowed to rotate about the central axis A 1 , the rotation of the cam member  108  causes the cam follower assembly  106  to raise and lower in the direction of the central axis A 1 , thereby creating orthogonal reciprocating motion from oscillating motion. 
     In some embodiments, a single cam follower  150  and a single cam protrusion  170  is used to convert the oscillating motion of the oscillating hub  110  to reciprocating motion. In such embodiments with a single cam follower  150  and a single cam protrusion  170 , other features may be required to stabilize the cam follower assembly  106 , such as a spring or a sliding dowel (not shown). In other embodiments, two or more upper and lower cam follower ramps  156  and  158  are included on a single cam follower  150 . 
     Turning to  FIGS. 6 a  and 6 b   , the conversion of the oscillating motion of the cam member  108  to orthogonal reciprocating motion of the cam follower assembly  106  is shown in greater detail. As shown in an initial relative clocked position in  FIG. 6 a   , the cam follower assembly  106  and the cam member  108  are at a distance D 1  apart (with the distance D 1  defined along the central axis A 1 ). The upper and lower cam follower ramps  156  and  158  interface the upper and lower cam ramp protrusions  172  and  174  in a sliding manner. Having the helical shape described above, as the upper and lower cam follower ramps  156  and  158  slide with respect to the upper and lower cam ramp protrusions  172  and  174 , the upper and lower cam follower ramps  156  and  158  are positioned either higher or lower on the helix of the upper and lower cam ramp protrusions  172  and  174 , resulting in translation of the cam follower assembly  106  along the central axis A 1 . 
     In some embodiments, the upper and lower cam follower ramps  156  and  158  closely correspond to the cam protrusion  170  such that the upper and lower cam follower ramps  156  and  158  abut the upper and lower cam ramp protrusions  172  and  174 . In other embodiments, an amount of axial play is introduced such that only one of the upper and lower cam follower ramps  156  and  158  abut the corresponding upper and lower cam ramp protrusions  172  and  174  during reciprocating motion. In this regard, inertia of the cam follower assembly  106  may cause the upper cam follower ramp  156  to abut the upper cam ramp protrusion  172  during a retracting reciprocating movement (opposite direction of T 1 ), and cause the lower cam follower ramp  158  to abut the lower cam ramp protrusion  174  during an extending reciprocating movement (in the direction of T 1 ). 
     As shown in the transition from  FIG. 6 a    to  FIG. 6 b   , as the cam member  108  rotates about the central axis A 1  in the direction of rotation R 1 , the cam follower assembly  106  translates away from the cam member  108  in the direction of translation T 1  from a distance D 1  to a distance D 2  (see  FIG. 6 b   ). The interaction of the upper and lower cam follower ramps  156  and  158  with the upper and lower cam ramp protrusions  172  and  174 , respectively (with the cam follower assembly  106  restricted from rotating), causes the oscillating motion of the cam member  108  to convert to orthogonal reciprocal motion in the cam follower assembly  106 . With the cam follower assembly  106  reciprocating, the infuser tip anchor  152  and subsequently to the infuser tip  102 , also necessarily reciprocate. 
     It can be appreciated that as the cam member  108  oscillates, it changes direction of rotation from the direction R 1  to a direction R 2  that is opposite R 1 . Thus, although not generally shown in the FIGURES, when the cam member  108  rotates in the direction of rotation R 2 , the cam follower assembly  106  translates toward the cam member  108  in the direction of translation T 2 . The repeating pattern of the cam member  108  oscillating between the directions of rotation R 1  and R 2  causes the cam follower assembly  106  to reciprocate between the directions of translation T 1  and T 2 . 
     As explained above, the cam follower assembly  106  exhibits an orthogonal reciprocating motion based on an oscillation from the cam member  108 . To accomplish the conversion of motion, the cam member  108  interfaces the oscillating hub  110  which interfaces an oscillating motor (not shown) within the personal care appliance H. The oscillating hub  110  transfers the oscillating motion of the motor to the cam member  108 . In this regard, the oscillating hub  110  includes a cam member positioning protrusion  190  configured to interface the cam member  108  and positively transfer the oscillating motion to the cam member  108 . 
     As shown in  FIG. 2 , the cam member positioning protrusion  190  is positionable between a hub positioning tab  180  and an outer housing locking tab  176  extending from a lower surface of the cam member  108 . The outer housing locking tab  176  is defined by an elongated member extending from the lower surface of the cam member  108 , and at least one locking notch (not labeled) defined on its distal end. The locking notch is configured to interlock with the cam member positioning protrusion  190  to removably couple the cam member  108  to the oscillating hub  110 . In other embodiments, an interlock feature is not required to couple the cam member  108  to the oscillating hub  110  as the body locking slots  140  of the outer housing assembly  104  couple the cam driven converter assembly  100  to the personal care appliance H. 
     In some embodiments, the cam driven converter assembly  100  is assembled prior to the coupling of the cup  130  to the outer housing  136 . In this regard, the first and second cam followers  150  and  151  are suitably coupled together to surround the infuser tip anchoring post  154  within the infuser tip anchor aperture  164 . During coupling of the first and second cam followers  150  and  151 , the first and second cam protrusions  170  and  171  are interfaced such that the features moveably interlock the cam follower assembly  106  to the cam member  108 . In this regard, the freedom of movement between the cam follower assembly  106  and the cam member  108  is limited to the sliding interaction of the upper and lower cam follower ramps  156  and  158  and the upper and lower cam ramp protrusions  172  and  174 . 
     When interfaced, the cam follower assembly  106  and the cam member  108  are inserted into the outer housing  136  from a forward side (i.e., the side of the outer housing  104  with the outer housing welding surface  142 ). During the insertion, each outer housing clocking slot protrusion  166  is aligned with a corresponding cam follower clocking slot  138  of the outer housing  136 . The interfaced cam follower assembly  106  and cam member  108  are inserted into the outer housing  136  until an outer housing locking protrusion  178  of the outer housing locking tab  176  extends radially outward and interfaces the outer housing  136 . In this manner, the interfaced cam follower assembly  106  and cam member  108  are prevented from exiting the forward side of outer housing without deflection of the outer housing locking tab  176 . 
     To complete the outer housing assembly  104 , the cup  130  is coupled to the outer housing  136  using any suitable method described above. The coupling of the cup  130  prevents removal of the interfaced cam follower assembly  106  and cam member  108  from the forward side of the outer housing  136 . Likewise, features of the outer housing  136  and the cam follower assembly  106 , such as the cam follower clocking slots  138  and the outer housing clocking slot protrusions  166  prevent removal of the interfaced cam follower assembly  106  and cam member  108  from the aft side of the outer housing  136 . In this regard, as the cam driven converter assembly  100  is removed from the personal care appliance H, the cam member  108  separates from the oscillating hub  110  (which remains with the personal care appliance H). As a final aspect of the assembly, the infuser tip  102  is suitably inserted into the infuser tip opening  132  to interface and couple to the infuser tip anchor  152  of the infuser tip anchoring post  154 . 
     A second exemplary embodiment of a converter assembly  200  of an appliance assembly  20  will now be described with reference to  FIGS. 7-12 . The converter assembly  200  includes various similarities to certain components of the cam driven converter assembly  100  of the appliance assembly  10  outlined above. It should be appreciated that certain of the alternative embodiments applicable to the cam driven converter assembly  100  are also applicable to the trampoline converter assembly  200 . 
     As shown in  FIGS. 9 and 10 , the converter assembly  200  generally includes an applicator tip, such as an infuser tip  202 , removably coupled to a trampoline assembly  206  interfacing a follower member  208  movable by an oscillating hub  210  of a personal care appliance H, wherein oscillating motion of the follower member  208  causes reciprocating motion of the trampoline assembly  206  (and infuser tip  202 ). In this regard, the converter assembly  200  will be hereinafter referred to as a trampoline converter assembly  200 . As used herein, the term “trampoline” refers to a flexible membrane used to provide a spring-like restorative force upon displacement. 
     In a similar manner to the cam driven converter assembly  100 , the trampoline converter assembly  200  is operably attachable to the personal care appliance H by interfacing the oscillating hub  210 . Like the cam driven converter assembly  100 , the oscillating hub  210  of the appliance assembly  20  interfaces a shaft of an oscillating motor (not shown) within the personal care appliance H through a motor shaft slot  292  on the oscillating hub  210 . In a manner well known in the art, the motor shaft is removably secured within the motor shaft slot  292  such that the rotation of the motor shaft oscillates the oscillating hub  210 . Further description of the attachment of the trampoline converter assembly  200  to the oscillating hub  210  will be provided below. 
     The trampoline converter assembly  200  is also removably attached to the personal care appliance H such that the trampoline converter assembly  200  may interface the oscillating hub  210 . Like the cam driven converter assembly  100 , the trampoline converter assembly  200  includes at least one body locking slot  240  in an outer housing assembly  204  that is configured to selectively interface a protrusion (not shown) on the personal care appliance H in a twisting interlock manner. In other embodiments, other attachment methods may be used to attach the trampoline converter assembly  200  to the personal care appliance H. As shown in  FIG. 8 , the combination of the trampoline converter assembly  200  and the oscillating hub  210  is generally designated as an appliance assembly  20 . 
     Differences in the infuser tip  202  from the infuser tip  102  will now be briefly described in detail. The infuser tip  202  is defined by a generally cylindrical body having an infusing surface  220  defined at one end of the body and an anchoring post locking tab  222  defined at the opposite end of the body (see  FIGS. 9-11 ). Although similar in function and general height in the axial direction to the infuser tip  102 , the infuser tip  202  has a differing aspect ratio such that it is larger in diameter than the infuser tip  102 . Similar to the infuser tip  102 , the infuser tip  202  is configured to be removably secured to the trampoline converter assembly  200  without the removal of the trampoline converter assembly  200  from the personal care appliance H. In this manner, a worn infuser tip  202  can be renewed without replacement of other components. 
     Differences in the outer housing assembly  204  from the outer housing assembly  104  will now be described in more detail. Similarly to the outer housing assembly  104 , the outer housing assembly  204  is generally configured to enclose the trampoline converter assembly  200  (including the trampoline assembly  206  and the follower member  208 ) and the oscillating hub  210  and it provides safety such that the user does not inadvertently contact the moving components of the appliance assembly  20 . Likewise, in the depicted embodiment, the outer housing assembly  204  is manufactured from multiple components, including a cup  230  and an outer housing  236 . However, in other embodiments, the outer housing assembly  204  is suitably manufactured from a single component or from more than two components. 
     In the illustrated embodiment, the cup  230  includes an infuser tip opening  232  that is larger than the infuser tip opening  132  of the cam driven converter assembly  100 . In this regard, the infuser tip opening  232  is sized and configured to closely surround the infuser tip  202 , while allowing reciprocating movement of the infuser tip  202  during use. The infuser tip opening  232  defines a central axis A 2  running through the center of the trampoline assembly  206 , the follower member  208 , and the oscillating hub  210  as shown in  FIGS. 9 and 10 . 
     In embodiments where the outer housing assembly  204  is manufactured from multiple components, they are suitably joined using a variety of coupling methods, including adhesive, welding, co-molding, fasteners, pins, or the like. In this regard, the cup  230  further includes a cup welding surface  234  configured to couple to an outer housing welding surface  242 . In some embodiments, the cup welding surface  234  and the outer housing welding surface  242  provide a position for sonic welding, adhesive, fastener, or pin attachment. In contrast to the illustrated embodiment of the cup  130 , the cup welding surface  234  may further include a trampoline assembly fixing aperture  296  to secure the cup  230  to the outer housing  236  and/or assist in securing a trampoline outer housing  250  to the outer housing assembly  204 , as will be explained in greater detail below. 
     Referring specifically to  FIGS. 9 and 10 , the trampoline assembly  206  configured to enable reciprocating motion of the infuser tip  202  will now be described in detail. The trampoline assembly  206  includes a trampoline member  256  securable within the trampoline outer housing  250 , and an infuser tip anchor  264  secured to the trampoline member  256 . The trampoline member  256  is configured to flex to provide movement of the infuser tip anchor  264  (and the infuser tip  202 ) with respect to the outer housing assembly  204  in the direction of the central axis A 2 . 
     The infuser tip anchor  264  is secured to trampoline member  256  through interlocking co-molding features that will be described in more detail below. When secured to the trampoline member  256 , the infuser tip anchor  264  is configured to removably secure the infuser tip  202  to the trampoline member  256  for movement of the infuser tip  202  with the trampoline member  256 . In that regard, the infuser tip anchor  264  includes an upper surface and an infuser tip anchoring post  266  extending from the upper surface. The infuser tip anchoring post  266  removably couples the infuser tip  202  to the infuser tip anchor  264  in a manner similar to the connection between the infuser tip anchoring post  154  and the infuser tip  102 . 
     Aspects of the coupling between the trampoline outer housing  250 , the trampoline member  256 , and the infuser tip anchor  264  to form the trampoline assembly  206  will now be described in more detail. To facilitate coupling of the components, the trampoline outer housing  250  includes at least one trampoline co-molding slot  252  extending axially along an interior portion of the outer housing  250  for co-molding interlocking at least one outer housing co-molding tab  258  extending radially from an outer edge of the trampoline member  256 . Likewise, the infuser tip anchor  264  includes at least one trampoline co-molding aperture  268  through the body of the infuser tip anchor  264  for co-molding interlocking at least one infuser tip anchor co-molding post  260  extending from an upper surface of the trampoline member  256 . 
     In some embodiments, the components of the trampoline assembly  206  are co-molded such that the trampoline assembly  206  is capable of elastic reciprocating motion with the follower member  208  (described in detail below) while being fixed within the rigid outer housing  250 . In this manner, the trampoline assembly  206  provides a fixed mounting location for the infuser tip  202 . In such co-molded embodiments, the trampoline outer housing  250 , the trampoline member  256 , and the infuser tip anchor  264  are formed in a molded combination as a single component. 
     As can be appreciated by one of ordinary skill, a co-molding process is one in which components manufactured from differing materials are molded to become interconnected while minimizing mixing of the materials to retain the separate material properties in each part of the co-molded component. For example, in some embodiments, the trampoline outer housing  250  and the infuser tip anchor  264  are manufactured from a rigid material (e.g., a plastic) while the trampoline member  256  is manufactured from an elastic material (e.g., a rubber). As stated above, in a standard co-molding process, the materials for each component do not mix; however, each component has features to permanently couple the components together as a result of the co-molding process. 
     Examples of such features are depicted in the illustrated embodiments. Specifically, and as described above, the trampoline co-molding slot  252  positioned in spaced, radial locations on the trampoline outer housing  250  interfaces with the outer housing co-molding tab  258  positioned in correspondingly spaced radial locations around the perimeter of the trampoline member  256  to form a co-molding coupling. In this regard, the outer housing co-molding tab  258  fills the trampoline co-molding slot  252  during the molding process to interlock the trampoline outer housing  250  and the trampoline member  256 . Likewise, the infuser tip co-molding post  260  positioned on an upper surface of the trampoline member  256  interfaces with the trampoline co-molding aperture  268  positioned around the infuser tip anchor  264  to form a co-molding coupling. In this regard, the infuser tip co-molding post  260  fills the trampoline co-molding aperture  268  during the molding process to interlock the trampoline member  256  and the infuser tip anchor  264 . To secure the trampoline member  256  to the infuser tip anchor  264 , the infuser tip co-molding post  260  may suitably flare at one end distal to the trampoline member  256  to provide an interference lock with the trampoline co-molding aperture  268 . 
     In other embodiments, coupling of the components of the trampoline assembly  206  is accomplished without co-molding, for example by using adhesives, fasteners, or pin and aperture features on the components. In further embodiments, the components of the trampoline assembly are manufactured from the same elastic material as a single member. In this regard, the infuser tip anchoring post  266  is suitably a separate material to provide structure for mounting of the infuser tip  202 , or it is reinforced internally with a rigid component (not shown). 
     The infuser tip  202 , when secured to the trampoline member  256  (through the infuser tip anchor  264 ), may move with the trampoline member  256  of the trampoline assembly  206  as it is reciprocated by the follower member  208 . The trampoline assembly  206  is secured to the follower member  208  through the infuser tip anchor  264 . In that regard, the manner in which the trampoline assembly  206  is coupled to the follower member  208  will now be described. 
     As can be seen by referring to  FIG. 9 , the follower member  208  includes suitable structure for securing the follower member  208  to the infuser tip anchor  264 . In the depicted embodiment, the infuser tip anchor  264  includes at least one follower member fixing aperture  270  through the body of the infuser tip anchor  264  configured to receive at least one infuser tip fixing pin  284  of the follower member  208 . In this regard, the interaction of the follower member fixing aperture  270  and the infuser tip fixing pin  284  is an interference fit such that the insertion of the infuser tip fixing pin  284  fixedly secures the follower member  208  to the infuser tip anchor  264 . With the infuser tip fixing pin  284  received within the follower member fixing aperture  270 , the follower member  208  is coupled to the infuser tip anchor  264 . As such, the infuser tip anchor  264  moves with the follower member  208 . Moreover, the follower member  208  is configured to translate in the direction of the central axis A 2  independent of the trampoline outer housing  250  due to the flexing of the trampoline member  256 . In some embodiments, the infuser tip anchor  264  may also include at least one follower pin clearance recess  262  correspondingly located to the follower member fixing aperture  270  and the infuser tip fixing pin  284  to provide clearance for the coupling of the follower member  208  to the infuser tip anchor  264 . 
     The coupling of the trampoline assembly  206  to the outer housing assembly  204  will now be described in detail. The outer housing assembly  204  includes features to interface with components of the trampoline converter assembly  200 . More specifically, at least one trampoline assembly fixing aperture  244  is provided on an upper annular flange (not labeled) of the outer housing  236  and is configured to receive at least one outer housing fixing pin  254  defined on an upper annular flange (not labeled) of the trampoline outer housing  250 . During assembly, when the outer housing fixing pin  254  is pressed into the trampoline assembly fixing aperture  244 , a coupling is created to secure the trampoline assembly  206  to the outer housing assembly  204 . In some embodiments, the cup  230  includes at least one trampoline assembly fixing aperture  296  that is configured to also receive the outer housing fixing pin  254  of the trampoline outer housing  250 . With the cup  230  coupled to the trampoline assembly  206  in this manner, enhanced coupling strength is defined between of the outer housing assembly  204  and the trampoline assembly  206 . 
     The trampoline assembly  206  is coupled to the outer housing assembly  204  in the above-described manner, or in any other suitable manner, to allow the infuser tip anchor  264  to reciprocate relative to the outer housing assembly  204  along the central axis A 2 . The function of the trampoline assembly is comparable to the sliding motion enabled by the outer housing clocking slot protrusions  166  of the cam driven converter assembly  100 . However, unlike the sliding motion of the cam follower assembly  106  with respect to the outer housing assembly  104 , the reciprocating motion of the infuser tip anchor  264  is accomplished by elastic flexing of the trampoline member  256  allowing movement of the infuser tip anchor  264  in the direction of the central axis A 2 . In this regard, the trampoline outer housing  250  is fixedly coupled to the outer housing assembly  204 , but the infuser tip anchor  264  is configured to reciprocate with respect to the outer housing assembly  204  based on input from the follower member  208 . 
     Still referring to  FIGS. 9 and 10 , the aforementioned reciprocating motion of the infuser tip anchor  264  results from interaction of the follower member  208  with the oscillating hub  210 . More specifically, the follower member  208  is configured to reciprocate along the central axis A 2  when the oscillating hub  210  oscillates. In that regard, the interaction of the follower member  208  with the oscillating hub  210  will now be described in detail. 
     The follower member  208  includes a cam follower tab  280  having a cam follower profile surface  282  configured to interface a follower interface cam protrusion  290  of the oscillating hub  210 . Any suitable cam profile surface and cam protrusion may be used to convert oscillating motion of the oscillating hub  210  to reciprocating motion of the follower member  208 . In the illustrated embodiment, the cam follower profile surface  282  is located on one end of the cam follower tab  280  distal to a lower surface of the follower member  208 . The cam follower profile surface is arcuate such that the oscillation of the oscillating hub  210  causes the follower member  208  to translate in a reciprocating movement along the central axis A 2 . In other embodiments, the shape of the cam follower profile surface  282  is suitably adjusted to obtain the desired follower member  208  reciprocating motion profile. 
     To convert oscillating motion of the oscillating hub  210  to reciprocating motion in the follower member  208 , a cam input point  294  of the follower interface cam protrusion  290  slidingly abuts the cam follower profile surface  282  of the follower member  208 . As can be seen in the interaction of the follower member  208  and the oscillating hub  210  in  FIGS. 12 a -12 c   , as the oscillating hub  210  oscillates, the cam input point  294  slides along the cam follower profile surface  282  to cause the follower member  208  to reciprocate along the central axis A 2 . As can be appreciated by one of ordinary skill, noise and material wear on the interacting surfaces during oscillation of the oscillating hub  210  can be reduced if the cam input point  294  is in constant contact with the cam follower profile surface  282 . However, in other embodiments, the cam input point  294  interfaces the cam follower profile surface  282  intermittently. 
     To ensure the aforementioned constant contact of the cam input point  294  and the cam follower profile surface  282 , during assembly of the trampoline converter assembly  200  to the personal care appliance H, the separation distance of the follower member  208  and the oscillating hub  210  is controlled. In this regard, the interaction of the cam input point  294  on the cam follower profile surface  282  at the position where the follower member  208  is closest to the oscillating hub  210  within the oscillation cycle causes at least a neutral flex in the trampoline member  256  (i.e. a position where the trampoline member  256  is not flexed). In some embodiments, a pre-flex is suitably introduced in the trampoline member  256  during assembly to the personal care appliance H such that the pre-flex creates an abutting bias between the cam input point  294  and the cam follower profile surface  282 , tending to keep the abutting components in constant contact. 
     As described above, to enable reciprocating movement of the infuser tip  202  of the trampoline converter assembly  200 , the trampoline member  256  must necessarily flex in relation to the outer housing assembly  204 . In this regard, as the oscillating hub  210  oscillates, the follower member  208  translates away from the oscillating hub  210  in the direction along the central axis A 2 . As the follower member  208  translates, the trampoline member  256  flexes to allow movement of the infuser tip anchor  264  with respect to the outer housing assembly  204 . In another aspect, the flex of the trampoline member  256  continues to provide a positive interaction of the cam input point  294  and the cam follower profile surface  282 . In this regard, as described above, the trampoline member  256  acts as a biasing member to ensure abutment of the cam input point  294  and the cam follower profile surface  282  through the range of oscillation movement of the oscillating hub  210 . Resultantly, as will be explained in greater detail below, with the follower member  208  limited to substantially linear movement along axis A 2 , the follower member  208  will reciprocate when interfacing with the oscillating hub  210 . 
     Turning now to  FIGS. 12 a -12 c   , the conversion of the oscillating motion to orthogonal reciprocating motion is shown in greater detail. As will be appreciated, the elastic properties and shape of the trampoline member  256  tend to resist rotation motion or oscillation about the central axis A 2 , preventing a transfer of the oscillation from the oscillating hub  210  to the infuser tip  202 . Resultantly, the rotation of the oscillating hub  210  causes the follower member  208  to translate in the direction of the central axis A 2 , thereby creating orthogonal reciprocating motion from oscillating motion. 
     As shown in an initial relative position in  FIG. 12 a   , the follower member  208  and the oscillating hub  210  are at a relative clocked position where the cam input point  294  is near a first end of the cam follower profile surface  282 . As shown in the transition from  FIG. 12 a    to  FIG. 12 b   , as the oscillating hub  210  rotates about the central axis A 2  in the direction of rotation R 3 , the follower member  208  translates away from the oscillating hub  210  in the direction of translation T 3  along the central axis A 2 . The interaction of the cam input point  294  and the cam follower profile surface  282  (with the follower member  208  restricted from rotating), causes the oscillating motion of the oscillating hub  210  to convert to orthogonal reciprocal motion in the follower member  208 . With the follower member  208  reciprocating, the infuser tip anchor  264 , and subsequently to the infuser tip  202 , also necessarily reciprocate. 
     As depicted in  FIG. 12 b   , the cam input point  294  is abutting the cam follower profile surface  282  at a substantially central point on the cam follower profile surface  282 , representing the furthest extension of the follower member  208  from the oscillating hub  210  along the central axis A 2 . 
     Next, as shown in the transition from  FIG. 12 b    to  FIG. 12 c   , as the oscillating hub  210  continues to rotate in the direction of rotation R 4 , the cam input point  294  travels past a central point on the cam follower profile surface  282  and the follower member  208  translates back toward the oscillating hub  210  in the direction of translation T 4 . It can be appreciated that as the oscillating hub  210  oscillates, it changes direction of rotation from the direction R 3  and R 4  to a direction that is opposite R 3  and R 4 .  FIG. 12 c    shows one representative clocking position of the transition of oscillation direction of the oscillating hub  210  from the direction of R 4  to the opposite rotational direction about A 2 . The repeating pattern of the oscillating hub  210  oscillating between the directions of rotation causes the follower member  208  to reciprocate between the directions of translation T 1  and T 2 . 
     A third exemplary embodiment of a converter assembly  300  of an appliance assembly  30  will now be described with reference to  FIGS. 13-16 . The converter assembly  300  includes various similarities to certain components of the trampoline converter assembly  200  of the appliance assembly  20  outlined above. For clarity in the ensuing descriptions, like elements have been designated with like numerals, but in the  300  series. It should be appreciated that certain of the alternative embodiments applicable to the cam driven converter assembly  100  and the trampoline converter assembly  200  are also applicable to the trampoline converter assembly  300 . 
     As shown in  FIGS. 13-15 , the trampoline converter assembly  300  has substantially similar components to the trampoline converter assembly  200 , including an infuser tip  302  removably coupled to a trampoline assembly  306  interfacing a follower member  308  and surrounded by an outer housing assembly  304 . Accordingly, the converter assembly  300  will be hereinafter referred to as a trampoline converter assembly  300 . As shown in  FIGS. 13 and 14 , the combination of the trampoline converter assembly  300  and the oscillating hub  310  is generally designated as an appliance assembly  30 . 
     Like the trampoline converter assembly  200 , the trampoline converter assembly  300  interfaces an oscillating hub  310  and is removably attached to the of the personal care appliance H ( FIG. 1 ). However, in contrast to the trampoline converter assembly  200 , the follower member  308  of the trampoline converter assembly  300  differs by including at least one cam follower protrusion  380  as opposed to a cam follower tab  280 . Further, an additional component, an oscillating cam  312 , is provided. For brevity in the ensuing description, only the differences between the trampoline converter assembly  200  and the trampoline converter assembly  300  will be described herein. 
     Differences in the follower member  308  from the follower member  208  will now be briefly described in detail. As shown most clearly in  FIG. 14 , the cam follower protrusions  380  extend from a lower surface and are spaced radially around a center opening of the follower member  308 , defining a central axis A 3 . Each cam follower protrusion  380  defines a curved cam follower profile surface  382  on a distal end, similar to the cam follower profile surface  282  described above. More specifically, in the depicted embodiment, the cam follower profile surface  382  is generally semi-cylindrical and configured to interface a cam recess profile surface  398  of a cam recess  396  as described in detail below. In other embodiments, the cam follower profile surface  382  is any suitable shape to cause the follower member  308  to reciprocate at a desired reciprocating motion profile. 
     In contrast to the trampoline converter assembly  200 , the trampoline converter assembly  300  includes an additional component, the oscillating cam  312 , positioned between the oscillating hub  310  and the follower member  308 . The oscillating cam  312  is removably securable to the oscillating hub  310  such that the oscillating cam  312  may oscillate with the oscillating hub  310 . In that regard, the oscillating hub  310  includes at least one oscillating cam fixing aperture  314  for removably receiving an oscillating hub locking tab  316  extending from the distal end of an oscillating hub fixing protrusion  318  on the bottom surface of the oscillating cam  312 . As shown most clearly in  FIG. 15 , the oscillating hub fixing protrusion  318  corresponds in shape and size to the oscillating cam fixing apertures  314  to provide a mating connection between the oscillating cam  312  and the oscillating hub  310 . 
     Further, the oscillating hub locking tab  316  is configured to removably couple the oscillating cam  312  and the oscillating hub  310  together. More specifically, the oscillating hub locking tab  316  passes through the oscillating cam fixing aperture  314 , and a catching protrusion (not labeled) on a distal end of the oscillating hub locking tab  316  catches on the bottom surface of the oscillating hub  310 . In some embodiments, the coupling of these components suitably occurs when the trampoline converter assembly  300  is combined with the personal care appliance H. However, in other embodiments, the oscillating cam  312  is coupled to the oscillating hub  310  prior to installation of the trampoline converter assembly  300  to the personal care appliance H. 
     The interaction of the follower member  308  and the oscillating cam  312  provides a similar conversion of oscillating motion to reciprocating motion as the follower member  208  and the oscillating hub  210  described in reference to the trampoline converter assembly  200  above. To carry out this function, the oscillating cam  312  includes at least one cam recess  396  defined on an upper surface of a body of the oscillating cam  312  that defines a cam recess profile  398 . The cam recess  396  is defined to interface the cam follower profile surface  382  of the cam follower protrusions  380 . In the illustrated embodiment, the oscillating cam  312  includes a plurality of cam recesses  396  positioned radially about the body of the oscillating cam  312  correspondingly to the cam follower protrusions  380  of the follower member  308 . Moreover, the cam recess profile  398  is defined by first and second opposing planar surfaces in the shape of a chevron. However, in other embodiments, the cam recess profile surface  398  is suitably any shape for interfacing the cam follower profile surface  382  to accomplish the desired reciprocating motion profile. 
     Turning to  FIGS. 16 a  and 16 b   , the conversion of the oscillating motion to orthogonal reciprocating motion for the trampoline converter assembly  300  will now be described in greater detail. As will be appreciated, the elastic properties and shape of the trampoline member  356  tend to resist rotation motion or oscillation about the central axis A 3 , preventing a transfer of the oscillation from the oscillating hub  310  to the infuser tip  302 . Resultantly, the rotation of the oscillating hub  310  and the oscillating cam  312  causes the follower member  308  to translate in the direction of the central axis A 3 , thereby creating orthogonal reciprocating motion from oscillating motion. 
     As shown in an initial relative position in  FIG. 16 a   , the follower member  308  and the oscillating cam  312  are at a relative clocked position where the cam follower protrusion  380  is near one side of the cam recess  396 . As shown in the transition from  FIG. 16 a    to  FIG. 16 b   , as the oscillating cam  312  rotates about the central axis A 3  in the direction of rotation R 5 , the follower member  308  translates toward the oscillating cam  312  in the direction of translation T 5  along the central axis A 3 . The interaction of the cam follower profile surface  382  and the cam recess profile surface  398  (with the follower member  308  restricted from rotating about the central axis A 3 ), causes the oscillating motion of the oscillating cam  312  to convert to orthogonal reciprocal motion in the follower member  308 . With the follower member  308  reciprocating, the infuser tip anchor  364 , and subsequently to the infuser tip  302 , also necessarily reciprocate. 
     As the oscillating cam  312  continues rotation in the direction of rotation R 6 , the cam follower protrusion  380  travels past a central point on the cam recess  396 . The cam follower protrusion  380  travels upwardly toward the second side of the cam recess  396 , and in response, the follower member  308  translates away from the oscillating cam  312  in the direction of translation T 6 . It can be appreciated that as the oscillating hub  310  and the oscillating cam  312  oscillate, they change direction of rotation from the direction R 5  and R 6  to a direction that is opposite R 5  and R 6 . The repeating pattern of the oscillating hub  310  oscillating between the directions of rotation causes the follower member  308  to reciprocate between the directions of translation T 5  and T 6  along the central axis A 3 . 
     Turning to  FIGS. 17-21 , alternate embodiments of converter assemblies  400 ,  500 ,  600 ,  700 , and  800  are depicted and will now be described in detail. Certain components of the converter assemblies  400 ,  500 ,  600 ,  700 , and  800  are substantially similar to the converter assemblies  100 ,  200 , and  300  as outlined above, and as such, shared components have not been shown in detail in the FIGURES. Accordingly, each converter assembly shown in  FIGS. 17-21  includes an outer housing assembly  404 ,  504 ,  604 ,  704 , and  804 , consisting of a cup  430 ,  530 ,  630 ,  730 , and  830 , and an outer housing  436 ,  536 ,  636 ,  736 , and  836 . Each outer housing  436 ,  536 ,  636 ,  736 , and  836  has a body locking slot  440 ,  540 ,  640 ,  740 , and  840  for attaching the converter assemblies  400 ,  500 ,  600 ,  700 , and  800  to a personal care appliance H ( FIG. 1 ). 
     The converter assemblies  400 ,  500 ,  600 ,  700 , and  800  further include an infuser tip surface member  402 ,  502 ,  602 ,  702 , and  802  for mounting of an infuser tip, such as infuser tip  102 ,  202 , or  302 . The infuser tip surface member  402 ,  502 ,  602 ,  702 , and  802  is elastically coupled to an oscillating hub  410 ,  510 ,  610 ,  710 , and  810  to provide the input oscillating motion, which is subsequently converted at least partially to reciprocating motion at the infuser tip surface member  402 ,  502 ,  602 ,  702 , and  802  through various configurations explained in greater detail below. The infuser tip is not shown in  FIGS. 17-21  for clarity. Differences in the alternate embodiments of  FIGS. 17-21  will now be described in detail. 
     Referring to the alternate embodiment of  FIG. 17 , a magnetic converter assembly  400  is provided. The magnetic converter assembly  400  includes the infuser tip surface member  402  elastically coupled to the oscillating hub  410 . The infuser tip surface member  402  is centered and retained in the outer housing assembly  404  by a mounting post  488  connected to the oscillating hub  410 . In some embodiments, the elastic coupling is a biasing member, such as an infuser tip surface member spring  428 . In other embodiments, the elastic coupling includes one or more biasing members such as a spring, a magnet, a deflecting post, or the like. 
     As shown in the illustrated embodiment, the infuser tip surface member  402  includes an embedded infuser tip surface member magnet  424  corresponding to an outer housing magnet  426  of the outer housing  436 . The infuser tip surface member magnet  424  and the outer housing magnet  426  are configured with opposing magnetic polarity and positioned in proximity to each other such that a repulsion force is present at certain rotational positions of the infuser tip surface member  402 . In this regard, as the oscillating hub  410  rotates, the repulsion force of the magnets  424  and  426  provide force to compress the infuser tip surface member spring  428  and retract the infuser tip surface member  402  within the outer housing assembly  404 . As a result, as the oscillating hub  410  oscillates, the infuser tip surface member  402  reciprocates with respect to the oscillating hub  410  and outer housing assembly  404 . In this embodiment, the infuser tip surface member  402  may exhibit both oscillating and reciprocating motion simultaneously. 
     Now referring to the alternate embodiment of  FIG. 18 , a post converter assembly  500  is provided. The post converter assembly  500  includes the infuser tip surface member  502  elastically coupled to the oscillating hub  510 . The infuser tip surface member  502  is centered in the housing by a mounting post  588  connected to the oscillating hub  510 . In the illustrated embodiment, the elastic coupling is a deflecting post  524  having a deflecting post end  526  near the infuser tip surface member  502 . As shown in the illustrated embodiment, the infuser tip surface member  502  includes a plurality of deflecting posts  524  coupled to the oscillating hub  510 . The deflecting post  524  is configured to deflect such that the infuser tip surface member  502  and the oscillating hub  510  are positioned closer together during deflection of the deflecting post  524 . In this regard, as the oscillating hub  510  rotates and then changes direction, the rotational inertia of the infuser tip mounting member  502  causes the infuser tip mounting member  502  to continue to rotate in the opposite direction of the oscillating hub  510  and deflect the deflection post  524 , thereby compressing the infuser tip surface member spring  528  and retracting the infuser tip surface member  502  within the outer housing assembly  504 . As a result, as the oscillating hub  510  oscillates, the infuser tip surface member  502  reciprocates with respect to the oscillating hub  510  and outer housing assembly  504 . In this embodiment, the infuser tip surface member  502  may exhibit both oscillating and reciprocating motion simultaneously. 
     Now referring to the alternate embodiment of  FIG. 19 , a post and slot converter assembly  600  is provided. The post and slot converter assembly  600  is substantially similar to the post converter assembly  500  except the infuser tip surface member spring  528  is omitted and an infuser tip surface member protrusion  646  and an outer housing slot  648  are included. As shown in the illustrated embodiment, the infuser tip surface member  602  includes a plurality of deflecting posts  624  coupled to the oscillating hub  610 , and the infuser tip surface member protrusion  646 . The outer housing  636  includes the outer housing slot  648  configured to interface the infuser tip surface member protrusion  646  to allow only translational movement of the infuser tip surface member  602  with respect to the outer housing assembly  604 . The deflecting post  624  is configured to deflect such that the infuser tip surface member  602  and the oscillating hub  610  are positioned closer together during deflection of the deflecting post  624 . In this regard, as the oscillating hub  610  rotates, the infuser tip surface member protrusion  646  prevents rotation of the infuser tip mounting member  602  and causes the infuser tip mounting member  602  to remain stationary relative to the oscillating hub  610  and deflect the deflection post  624 , thereby retracting the infuser tip surface member  602  within the outer housing assembly  604 . As a result, as the oscillating hub  610  oscillates, the infuser tip surface member  602  reciprocates with respect to the oscillating hub  610  and outer housing assembly  604 . 
     Now referring to the alternate embodiment of  FIG. 20 , a post and magnet converter assembly  700  is provided. The post and magnet converter assembly  700  is substantially similar to the post and slot converter assembly  600  except the function of the infuser tip surface member protrusion  646  and the outer housing slot  648  is performed with a magnetic force by an infuser tip surface member slug  748  and an outer housing magnet  746 . As shown in the illustrated embodiment, the infuser tip surface member  702  includes a plurality of deflecting posts  724  coupled to the oscillating hub  710 , and the infuser tip surface member slug  748 . In some embodiments, the infuser tip surface member slug  748  is manufactured from a ferrous material such that it possesses a magnetic attraction force to the outer housing magnet  746  when in close proximity. The outer housing  736  includes the outer housing magnet  746  configured to provide the magnetic attraction force to the infuser tip surface member slug  748  to allow only translational movement of the infuser tip surface member  702  with respect to the outer housing assembly  704 . The deflecting post  724  is configured to deflect such that the infuser tip surface member  702  and the oscillating hub  710  are positioned closer together during deflection of the deflecting post  724 . In this regard, as the oscillating hub  710  rotates, the magnetic attraction force between the infuser tip surface member slug  748  and the outer housing magnet  746  prevents rotation of the infuser tip mounting member  702  and causes the infuser tip mounting member  702  to remain rotationally stationary relative to the oscillating hub  710  and deflect the deflection post  724 , thereby retracting the infuser tip surface member  702  within the outer housing assembly  704 . As a result, as the oscillating hub  710  oscillates, the infuser tip surface member  702  reciprocates with respect to the oscillating hub  710  and outer housing assembly  704 . 
     Now referring to the alternate embodiment of  FIG. 21 , a wobble converter assembly  800  is provided. The wobble converter assembly  800  is substantially similar to the post and magnet converter assembly  700  except the configuration of the deflecting post  824 . As shown in the illustrated embodiment, the infuser tip surface member  802  includes a plurality of deflecting posts  824  mounted in a biased configuration such that the deflection posts  824  are not normal to the direction of translation of the infuser tip surface member  802 . The deflection posts  824  are coupled to the oscillating hub  810  and the infuser tip surface member slug  848 . The outer housing  836  includes the outer housing magnet  846  configured to provide the magnetic attraction force to the infuser tip surface member slug  848  to allow only translational movement of the infuser tip surface member  802  with respect to the outer housing assembly  804 . The deflecting post  824  is configured to deflect such that the infuser tip surface member  802  and the oscillating hub  810  are positioned closer together during deflection of the deflecting post  824 . 
     As the oscillating hub  810  rotates, the magnetic attraction force between the infuser tip surface member slug  848  and the outer housing magnet  846  prevents rotation of the infuser tip mounting member  802  and causes the infuser tip mounting member  802  to remain rotationally stationary relative to the oscillating hub  810  and deflect the deflection post  824 . However, the biased configuration causes a first deflecting post  824  to extend while a second deflecting post  824  deflects further. This biased configuration may cause the infuser tip surface member  802  to tilt at an angle while translating with respect to the outer housing assembly  804 . As a result, as the oscillating hub  810  oscillates, the infuser tip surface member  802  changes angle and reciprocates with respect to the oscillating hub  810  and outer housing assembly  804 . In this embodiment, the infuser tip surface member  802  exhibits non-orthogonal reciprocating motion. 
     The detailed description set forth above in connection with the appended drawings, where like numerals reference like elements, are intended as a description of various embodiments of the present disclosure and are not intended to represent the only embodiments. Each embodiment described in this disclosure is provided merely as an example or illustration and should not be construed as preferred or advantageous over other embodiments. The illustrative examples provided herein are not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Similarly, any steps described herein may be interchangeable with other steps, or combinations of steps, in order to achieve the same or substantially similar result. 
     In the foregoing description, specific details are set forth to provide a thorough understanding of exemplary embodiments of the present disclosure. It will be apparent to one skilled in the art, however, that the embodiments disclosed herein may be practiced without embodying all of the specific details. In some instances, well-known process steps have not been described in detail in order not to unnecessarily obscure various aspects of the present disclosure. Further, it will be appreciated that embodiments of the present disclosure may employ any combination of features described herein. 
     The present application may include references to directions, such as “forward,” “rearward,” “front,” “back,” “upward,” “downward,” “right hand,” “left hand,” “lateral,” “medial,” “in,” “out,” “extended,” “advanced,” “retracted,” “proximal,” “distal,” “central,” etc. These references, and other similar references in the present application, are only to assist in helping describe and understand the particular embodiment and are not intended to limit the present disclosure to these directions or locations. 
     The present application may also reference quantities and numbers. Unless specifically stated, such quantities and numbers are not to be considered restrictive, but exemplary of the possible quantities or numbers associated with the present application. Also in this regard, the present application may use the term “plurality” to reference a quantity or number. In this regard, the term “plurality” is meant to be any number that is more than one, for example, two, three, four, five, etc. The term “about,” “approximately,” etc., means plus or minus 5% of the stated value. 
     The principles, representative embodiments, and modes of operation of the present disclosure have been described in the foregoing description. However, aspects of the present disclosure, which are intended to be protected, are not to be construed as limited to the particular embodiments disclosed. Further, the embodiments described herein are to be regarded as illustrative rather than restrictive. It will be appreciated that variations and changes may be made by others, and equivalents employed, without departing from the spirit of the present disclosure. Accordingly, it is expressly intended that all such variations, changes, and equivalents fall within the spirit and scope of the present disclosure as claimed.