Abstract:
A versatile vibrating sexual enhancement device for use by either men or women individually, or by both during sexual intercourse. The device comprises a phallic portion that contains a vibrator therein and a loop portion comprised of an elastomeric material. The loop portion is configured to encircle erect penises of various sizes without causing circumferential constriction thereto, thereby being comfortable as well as being easy to install and remove. Also, the loop portion is slidable on various sized penises, which even further increases the utility of the device during different sex acts. The device includes a controller that serves to turn the vibrator on and off. In certain embodiments the controller is remote from the device being connected thereto by a pair of electrical wires. In other embodiments the controller is located within the phallic portion of the device.

Description:
FIELD OF THE INVENTION  
         [0001]    This invention relates to vibrating sexual enhancement devices designed to increase sexual stimulation by either men or women and additionally to those devices designed to increase mutual sexual gratification by couples during sexual intercourse.  
         BACKGROUND OF THE INVENTION  
         [0002]    There historically have been many prior art devices developed to improve or aid sexual gratification, both for men and women. The devices designed for use by women are typically phallic in form and may or may not include a vibration device within. Those without a vibrator are intended for vaginal penetration and stimulation while those that vibrate are also intended for vaginal penetration and stimulation and additionally for clitoral and g-spot stimulation. Although these phallic shaped devices may be used for clitoral stimulation during intercourse, they must be hand held at such times, which limits the possible positions and comfort of one or both partners. Also, during intercourse, such devices only stimulate locally and cannot stimulate the entire region surrounding the vagina.  
           [0003]    Prior art devices designed for use by men, especially those suffering from some degree of impotence, are commonly in the form of a round constrictive ring that tightly surrounds the base of the penis. These devices are typically not intended to directly sexually stimulate or gratify either the man or his sex partner. Instead, they are primarily intended to improve erectile dysfunction problems of the man by trapping venous blood in the penis by means of localized constriction thereby aiding in the engorgement of the penis. A problem with these devices is that when sized to be tight enough to be effective for their intended purpose they can be quite uncomfortable. Another problem is that constrictive rings can cause vascular damage and/or other physiological problems if they are too tight and/or they are left on for too long. Yet another problem with many such devices is that they are difficult to install and remove from the penis. Also, since different men&#39;s erect penises vary greatly in girth it is often difficult to obtain a correctly sized ring. This is best understood in accordance with a study conducted by Kinsey Institute of Sex Research. In this study men&#39;s erect penises varied in girth from 1.5 inches to 6.75 inches with a mean girth of about 5.0 inches. In an attempt to address the problem of providing rings that will fit different sized penises there have been developed various prior art constrictive ring devices that are adjustable. However these rings are often comprised of several parts that can be cumbersome to assemble and to correctly size. Also, except for sizing, they still have the previously mentioned inherent problems of non-adjustable rings.  
           [0004]    Although there are some constrictive rings that have protuberances (both with and without vibrators attached) for the purpose of clitoral stimulation, the ring itself is still uncomfortably tight and awkward to install and remove which can hamper the flow and spontaneity of various sex acts. Another problem is that these rings are not slidable on the penis but instead remain stationary at the base of the penis where they are normally placed. This limits their versatility by precluding the possibility of maintaining continuous stimulating contact with the woman&#39;s vulva while the man&#39;s penis reciprocates in the woman&#39;s vagina during intercourse.  
           [0005]    Accordingly, there is a need in the art for a versatile sexual enhancement device that is sexually stimulating to either a man or a woman individually or to both simultaneously during sexual intercourse, and additionally a device that is easy to install and remove from a man&#39;s erect penis, and also one that is slidable on a man&#39;s erect penis.  
         SUMMARY OF THE INVENTION  
         [0006]    The present invention is a versatile sexual gratification device that can be used for sexual stimulation by either a man or a woman individually or to both simultaneously during the act of sexual intercourse.  
           [0007]    In the preferred embodiment the device comprises a proximally disposed generally teardrop or football shaped loop portion and an attached distally disposed generally phallic shaped phallic portion both of which are made of an elastomeric material such as latex, silicone or vinyl. The loop portion is essentially a deformed cylinder that may be either solid or tubular. Both the loop portion and the phallic portion are bilaterally symmetrical to a first plane of symmetry and also to a second plane of symmetry wherein the first and second planes of symmetry are perpendicular to one another. The second plane of symmetry may be either straight or slightly curved.  
           [0008]    The loop portion comprises a proximal portion, a distal portion, and two symmetrically disposed lateral portions therebetween. The proximal portion has a first radius and the lateral portions each have a larger second radius that converge at the distal portion which is attached to the phallic portion of the device. The proximal portion and lateral portions have a continuously round cross-section approximately 0.75 inch in diameter. The innermost surface of the loop portion defines an opening that is preferably at least 1.5 times as long along the intersection of the planes of symmetry as it is at its widest point and the perimeter of the opening is at least 6.0 inches long. Preferably the width of the opening is less than 1.2 inches, which assures bilateral contact of the lateral portions with penises having a girth between 3.7 inches and 6.0 inches. In other words, when the width of the loop opening is less than the diameter of the penis, the lateral portions gently grip opposite sides of the penis. This results in greater stimulation to the man when the vibrator is activated as compared to the case where the loop opening width is greater than the penis diameter. Also, more vibration is imparted to the penis itself, which even further enhances stimulation felt by the woman when the device is used during intercourse. Since the loop portion is constructed of an elastomeric material it can readily expand laterally and thus can deform to encircle various size penises up to a girth equal to the perimeter of the opening without stretching along its length. In other words, when the loop portion is placed on penises up to 6.0 inches in girth the entire length of the loop&#39;s inner surface will not be in contact with the entire circumference of the penis. Instead, a portion of the loop&#39;s inner surface will remain disengaged from the penis whereby the inner surface of the loop portion and the surface of the penis will define at least one free space. Smaller girthed penises will leave a larger free space and conversely, larger girthed penises will leave a smaller free space. In any case, as long as a free space remains, stretching along the loop portion does not occur. Accordingly, circumferential constriction to the penis does not occur which alleviates the inherent problems associated with prior art constrictive rings. Although the above referenced study on penis sizes indicates that penises vary in girth from less than 3.7 inches to more than  6 . 0  inches the above-described preferred embodiment of the loop portion is intended for optimal use by the vast majority of men having penises within this range. For those few men with penises larger than 6.0 inches in girth it is recommended that proportionally larger loop portions be provided. And to provide an improved fit for those men with penises smaller than 3.7 inches in girth, a means can be provided that encircles and constrains a prescribed distal length of lateral portions thereby effecting a reduction in both the width and the perimeter of the loop opening.  
           [0009]    The phallic portion of the device is preferably generally round in cross section along its entire length and has a spherical radius at its distal end. It may be cylindrical or it may exhibit gradually varying diameters along its length in which case it may be either somewhat tapered or corrugated. When viewed along the second plane of symmetry perpendicular to the intersection of the first and second planes of symmetry the phallic portion may be curved somewhat in which case the second plane of symmetry is similarly curved. The phallic portion is preferably at least 3.0 inches long, which assures its contact with the most sensitive areas just inside the woman&#39;s vagina when the device is used for vaginal penetration and stimulation.  
           [0010]    The device includes an electrically powered vibrator for the purpose of increased stimulation during use. Such vibrators are commonly available and are well known in the art for their stimulation enhancement characteristics. The vibrator comprises an electric motor that has an eccentric weight attached to its shaft, which causes the vibrator to vibrate when the shaft rapidly rotates. The vibrator is located within the proximal end of the phallic portion adjacent the loop portion. This substantially centralized location assures that vibrations are optimally imparted to both the phallic portion and the loop portion. The vibrator is connected via electrical conductors to a controller whereby the controller includes a battery compartment, a battery, and an electrical switch that serves to turn the motor on and off. In certain embodiments of the invention the controller is located within the phallic portion of the device. In these cases at least a portion of the phallic portion is detachable from the loop portion thereby providing access to the battery compartment. In other embodiments the controller is located remotely from the device being connected thereto by a pair of electric wires. In this case the wires enter the device at the distal portion of the loop portion so as not to interfere with uses of the phallic portion such as vaginal penetration. Alternatively, the connection between the device and a remotely disposed controller may be wireless, i.e. radio controlled, in which case both the device and the controller contain a battery compartment.  
           [0011]    As it is the general nature of elastomeric material surfaces to have high coefficients of friction with other surfaces it is recommended that the present invention be used in conjunction with a biocompatible lubricant. Accordingly, and especially with the aid of a lubricant, the embodiments described herein not only permit ease of installation and removal of the loop portion of the device from a man&#39;s erect penis but also readily permit axial movement of the penis within the opening of the loop portion. In fact, since the loop portion is relatively loose on the man&#39;s penis, it can remain in contact with the woman&#39;s vulva during intercourse, being held there either by gravity, or by hand by either partner, or by a harness. In these instances the man&#39;s penis can move freely back and forth within the loop while the woman experiences continuous stimulation from the vibrating device.  
           [0012]    The above-described device may also be used for sexual gratification in other ways. For example, it may be hand held by the loop portion while using the phallic portion to stimulate various external erogenous areas such as a woman&#39;s breasts or vulva or a man&#39;s genitals. Or, the phallic portion may be used for vaginal penetration and stimulation and g-spot stimulation. Conversely, the device may be held by the phallic portion while the loop portion is used to stimulate erogenous areas of either a man or a woman. Also, the loop may be placed around a man&#39;s penis for stimulation during such acts as masturbation or felatio. At such times, the phallic portion of the device may be positioned for simultaneous testicular stimulation. Or, during intercourse, while the loop portion stimulates a woman&#39;s vulva, the phallic portion may be positioned to simultaneously stimulate her anus. The device may additionally include means such as openings for the attachment of a harness whereby the harness is used to hold the device in place in front of a woman&#39;s vagina during intercourse. The harness comprises straps that encircle the woman&#39;s waist, hips and/or legs to appropriately position the device in place.  
           [0013]    In an alternate embodiment of the invention the phallic portion may be reduced in size to the extent that it minimally encloses the vibrator. In this case the device is intended only for those instances where in encircles the man&#39;s penis during uses such as intercourse.  
           [0014]    The device can be manufactured, for example, by molding an appropriate elastomeric material whereby the phallic portion and the loop portion are integral to one another and are inseparable. In this case the vibrator is encapsulated within the phallic portion and the controller is located remotely from the device. On the other hand, both the vibrator and the controller can be located within the device, in which case all or part of the phallic portion is detachable for the purpose of providing access to the battery compartment. In this case, the loop portion can be manufactured by multiple methods. For example, it can be molded in its final configuration using a suitable elastomeric material. Alternatively, it can be formed by bending an appropriate length of cylindrical elastomeric material, either solid or tubular, such that the two ends converge whereat they are physically attached by mechanical means and/or by adhesives to the proximal end of the phallic portion. If the cylindrical material is either solid, or tubular with thick walls, the resulting loop portion is substantially teardrop shaped. However, if the cylindrical material is tubular with thin walls, a kink occurs where stresses are the highest at the middle of the tube&#39;s length which results in a substantially football shaped loop portion. For a given material, tubular loop portions are lighter and a bit more compliant than solid loop portions. This is because the walls collapse somewhat during various uses. This results in more comfort to the man when the loop portion is placed around his penis and also provides a more yielding, stimulating cushion when the man deeply penetrates the woman during intercourse. However, satisfactory solid loop portions can be made from acceptably compliant materials. Therefore, for purposes of this invention, loop portions may be either solid or tubular and either teardrop or football shaped.  
           [0015]    Accordingly, it is an object of the present invention to provide a vibrating sexual enhancement device that can be conveniently and comfortably used during sexual intercourse that is simultaneously sexually stimulating to both partners and additionally helps the woman more readily achieve orgasm.  
           [0016]    Another object of the invention is to provide a comfortable and sexually stimulating device that is easily installed and removed from a man&#39;s erect penis.  
           [0017]    Yet another object of the invention is to provide a comfortable and sexually stimulating device that is slideable on a man&#39;s erect penis.  
           [0018]    A further object is to provide a device that is simultaneously stimulating to the entire erogenous region surrounding a woman&#39;s vaginal opening. Even another object is to provide a versatile device that can at one time be used to sexually stimulate a man and at another time be used to sexually stimulate a woman.  
       
    
    
     DESCRIPTION OF THE DRAWINGS  
       [0019]    These and other features of the present invention may be more fully understood through reference to the drawings in which:  
         [0020]    [0020]FIG. 1 is a plan view of a preferred embodiment of the invention showing a proximally disposed loop portion and a distally disposed phallic portion containing a vibrator therein, and a remotely connected controller;  
         [0021]    [0021]FIG. 2 is a section view taken along the lines  2 - 2  of the loop portion of FIG. 1;  
         [0022]    [0022]FIG. 3 is a partial section of the phallic portion of the device of FIG. 1 showing components of the vibrator;  
         [0023]    [0023]FIG. 4 is a sectional end view of the vibrator taken along lines  4 - 4  of FIG. 3 showing the eccentric weight attached to the shaft of the motor;  
         [0024]    [0024]FIG. 5 is an isometric view of a controller that serves to power the vibrator;  
         [0025]    [0025]FIG. 6 is a side view of the device shown in FIG. 1 showing a second plane of symmetry;  
         [0026]    [0026]FIG. 7 is an alternative side view of the device shown in FIG. 1 whereby the second plane of symmetry is curved;  
         [0027]    [0027]FIG. 8 is a perspective view of the device of FIG. 7;  
         [0028]    [0028]FIG. 9 is a partially sectioned plan view of an alternative preferred embodiment of the invention where both the vibrator and the controller are located within the phallic portion of the device and a portion of the phallic portion is detachable;  
         [0029]    [0029]FIG. 10 is a section view taken along the lines  10 - 10  of FIG. 9 showing switching elements of the controller in an “on” position;  
         [0030]    [0030]FIG. 11 is an alternate section view taken along the lines  10 - 10  of FIG. 9 showing switching elements of the controller orientated in an “off” position;  
         [0031]    [0031]FIG. 12 shows the device of FIG. 9 whereby the detachable portion (sectional view) is detached from an inseparable portion (partial exterior view) providing access to a battery compartment;  
         [0032]    [0032]FIG. 13 is a plan view of the loop portion of the device of FIG. 1 showing a nominal opening having a length, a width, and a perimeter defined by an inner surface;  
         [0033]    [0033]FIG. 14 is a plan view of the loop portion of the device of FIG. 1 showing a penis with a girth of 3.7 inches positioned within the opening thereby causing a deformation to the loop portion;  
         [0034]    [0034]FIG. 15 is a plan view of the loop portion of the device of FIG. 1 showing a penis with a girth of 5.0 inches positioned within the opening thereby causing further deformation of the loop portion;  
         [0035]    [0035]FIG. 16 is a plan view of the loop portion of the device of FIG. 1 showing a penis with a girth of 6.0 inches positioned within the opening thereby causing even further deformation of the loop portion;  
         [0036]    [0036]FIG. 17 shows a pre-assembled plan view of components of another alternative embodiment of the invention comprising a length of thick-walled elastomeric tubular material and a pre-formed phallic portion;  
         [0037]    [0037]FIG. 18 shows the embodiment of the invention comprising the assembled components of FIG. 17 and a controller;  
         [0038]    [0038]FIG. 19 is a cross sectional view of the loop portion taken along lines  19 - 19  of FIG. 18;  
         [0039]    [0039]FIG. 20 is a cross sectional view taken along lines  20 - 20  of FIG. 18 showing ends of the loop portion seated and constrained in a recess in the proximal end of the phallic portion;  
         [0040]    [0040]FIG. 21 is a plan view of yet another alternative embodiment of the device wherein the loop portion is comprised of a thin-walled elastomeric tube;  
         [0041]    [0041]FIG. 22 is a sectional view of the loop portion of the device taken along lines  22 - 22  of FIG. 21;  
         [0042]    [0042]FIG. 23 is a sectional view of the distal portion of the loop portion taken along lines  23 - 23  of FIG. 21 showing collapsing of the walls of the thin-walled tube;  
         [0043]    [0043]FIG. 24 shows a partial view of the device of FIG. 21 whereby a penis shown in cross-section is disposed within the opening of the loop portion;  
         [0044]    [0044]FIG. 25 is a sectional view taken along lines  25 - 25  of FIG. 24 showing a localized deformation of the inner walls of the loop portion adjacent the penis;  
         [0045]    [0045]FIG. 26 is a plan view of a constraining ring that functions to reduce the size of the opening of the loop portion;  
         [0046]    [0046]FIG. 27 is an end view of the constraining ring shown in FIG. 26;  
         [0047]    [0047]FIG. 28 is a plan view of the device shown in FIG. 21 showing the constraining ring of FIGS. 26 &amp; 27 placed on the distal portion of the loop portion;  
         [0048]    [0048]FIG. 29 is a sectional view taken along lines  29 - 29  of FIG. 28 showing the constraining ring constraining the distal portion of the loop portion;  
         [0049]    [0049]FIG. 30 shows a plan view of even another embodiment comprising a phallic portion shown partially sectioned and an attachable loop portion and a means for attachment and adjustment;  
         [0050]    [0050]FIG. 31 shows a plan view of the loop portion and the phallic portion of FIG. 30 attached to one another and a means for varying the size of the opening in the loop portion;  
         [0051]    [0051]FIG. 32 is a view of an alternative means for varying the size of the opening in the loop portion;  
         [0052]    [0052]FIG. 33 shows a plan view of even yet another embodiment comprising a detachable phallic portion having an electric switch actuator at a proximal end, and an attachable loop portion, and a means for attachment;  
         [0053]    [0053]FIG. 34 shows a plan view of the loop portion and the phallic portion of FIG. 33 assembled to one another;  
         [0054]    [0054]FIG. 35 is a sectional view taken along lines  35 - 35  of FIG. 34 showing anti-slip means for rotating the electrical switch actuator;  
         [0055]    [0055]FIG. 36 shows even yet another embodiment of the device wherein the phallic portion is foreshortened and the device includes means for attaching a harness; and  
         [0056]    [0056]FIG. 37 shows the device of FIG. 32 with a harness attached positioning the device appropriately on a woman for use during intercourse. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0057]    Referring to FIG. 1, a plan view of a preferred embodiment of the present invention is shown comprising a sexual enhancement device  10  substantially comprised of an elastomeric material such as latex, silicone or vinyl. The device  10  has a proximal end  12  and a distal end  14  and is bilaterally symmetrical to a first plane of symmetry  16 . The device  10  includes a proximally positioned loop portion  20  that is connected to, and integral with, a distally positioned phallic portion  22 . The loop portion  20  is generally teardrop shaped in that it has a proximal portion  24  that has an inner surface  26  having a first radius R 1 , and two symmetrically disposed lateral portions  28   a ,  28   b  which have inner surfaces  30   a ,  30   b , respectively, each of which has a second larger radius R 2 , that converge at a distal portion  32 . The inner surfaces  26 ,  30   a ,  30   b  of the loop portion  20  define an opening  34  having a length L, a width W, and a perimeter  36 . The length L is at least 1.5 times the width W, and the perimeter is at least 6.0 inches long. Preferably the width W of the opening  34  is 1.2 inches or less, which assures bilateral contact of the inner surfaces  30   a ,  30   b  with penises having a girth between 3.7 inches and 6.0 inches, which is representative of about 94% of men according to the above-mentioned study. The proximal and lateral portions,  24 ,  28   a ,  28   b , respectively, have a continuous cross-sectional diameter D 1  as represented in FIG. 2. For reasons of comfort and to assure optimal sensation to both the man and the woman without substantially reducing the potential penetration of the penis during intercourse, the diameter D 1  is preferably between 0.5 and 1.0 inches.  
         [0058]    The phallic portion  22  is generally round in cross section along its length and has a diameter D 2  of approximately 1.5 inches at its proximal end  37  and therefrom it tapers somewhat toward its distal end  38  whereat it has a spherical radius. The phallic portion  22  has a length LP that is preferably between three and six inches and includes an electrically powered vibrator  40  that is embedded within the proximal end  37  adjacent the loop portion  20 . FIG. 3 is a slightly enlarged partially sectioned view of the proximal end  37  of the phallic portion  22  showing the components of the vibrator  40 . The vibrator  40  comprises a container  42  and a container cover  44  that serve to encapsulate a low voltage electric motor  46 . The motor  46  has an eccentric weight  48  attached to its shaft  50  that causes the vibrator  40  to vibrate when the motor  46  is activated. FIG. 4 shows the eccentric disposition of the weight  48  with respect to the shaft  50 . The vibrator  40  is connected via a pair of electric wires  52  to a controller  54 , which is shown in isometric view in FIG. 5. The controller  54  includes a switch actuator  56  that functions to turn the vibrator  40  on and off. The controller  54  also has a battery compartment  58 , which is used to store batteries  60  that serve to power the motor  46 . A cover  62  that is either hinged or removable is provided for accessing the battery compartment  58 .  
         [0059]    [0059]FIG. 6 shows the device  10  is also bilaterally symmetrical to a second plane of symmetry  63 , which is perpendicular to the first plane of symmetry  16  as illustrated in FIG. 2.  
         [0060]    An alternative side view of the device  10  of FIG. 1 is shown in FIG. 7 whereby at least a portion of the second plane of symmetry  63 A of a device  10 A is curved in which case the loop portion  20 A and the phallic portion  22 A are similarly curved. This embodiment is illustrated in isometric view in FIG. 8, which shows the device  10 A, interconnecting with the controller  54  via the electric wires  52 .  
         [0061]    [0061]FIG. 9 shows a plan view of another embodiment of the present invention whereby a device  110  has proximal end  112  and a distal end  114 . The device  110  comprises a proximally positioned loop portion  120  and a distally positioned phallic portion  122  that comprises an inseparable portion  159  and a detachable portion  161 . The inseparable portion  159  is attached to the loop portion  120 , which is similar in structure to the loop portion  20  of the device  10  of FIG. 1. The inseparable portion  159  contains a vibrator  140  and a battery compartment  158  that functions to house a battery  160 . A first electrical conductor  164  between the vibrator  140  and the proximal end of the battery compartment  158  is provided for the purpose of making an electrical connection between a first terminal  165  of the battery  160  and the vibrator  140 . A second electrical conductor  166  is provided between the vibrator  140  and an exposed surface of the inseparable portion  159  for the purpose of intermittent contact with a third electrical conductor  167  which is positioned in a cavity  168  in the detachable portion  161  and which makes contact with a second terminal  170  of the battery  160 . Accordingly, the distal end of the second electrical conductor  166  and the proximal end of the third electrical conductor  167  function as an electrical switch  169  between the vibrator  140  and the battery  160  that serves to turn the vibrator  140  on and off. FIGS. 10 and 11 show internal ribs  172   a ,  172   b  on the detachable portion  161 , and abutting surfaces  174   a ,  174   b  on the inseparable portion  159  that cooperate to limit the rotation of the detachable portion  161  with respect to the inseparable portion  159  such that the vibrator  140  can readily be turned on and off. For example, FIG. 10 shows the detachable portion  161  rotated to its counterclockwise limit whereby the rib  172   a  abuts the surface  174   a  and the second electrical conductor  166  contacts the third electrical conductor  167  thereby placing the switch  169  in the “on” position. Alternatively, FIG. 11 shows the detachable portion  161  rotated to its clockwise limit whereby the rib  172   b  abuts the surface  174   b  and the second electrical conductor  166  is separated from the third electrical conductor  167  thereby placing the switch  169  in the “off” position. Accordingly, in this embodiment, the electrical conductors  164 ,  166 , and  167 , the battery compartment  158 , the battery  160  and the switch  169  collectively comprise a controller  154  for the device  110 .  
         [0062]    The inseparable portion  159  includes an annular groove  176  that serves to engage an annular rib  178  on the wall of the cavity  168  of the detachable portion  161  thus providing a retaining means between the two portions  159 ,  161  when they are pressed together. To access the battery compartment  158 , the detachable portion  161  can be detached from the inseparable portion  159  simply by pulling the two portions  159 ,  161  apart axially. Conversely, pressing the portions  159 ,  161  together axially until the annular rib  178  seats in the annular grove  176  can reassemble the device. This configuration also permits axial rotation of the detachable portion  161  with respect to the inseparable portion  159 , which is important with respect to the built-in switch  169  described above. As shown in FIG. 12, the annular grove  176  of the inseparable portion  159  has a diameter D 3  and the annular rib on the detachable portion  161  has a diameter D 4 . For purposes of optimal retention, the diameter D 3  is equal to or slightly greater than the diameter D 4 . Although the battery compartment  158  is shown located in the inseparable portion  159  in this embodiment it is recognized that it could alternatively be located in a detachable portion (not shown). It is also recognized that the vibrator  140 , which is shown positioned in the inseparable portion  159 , could just as easily be positioned in a detachable portion in which case a controller may be located either within the device or remote from the device.  
         [0063]    [0063]FIG. 13 shows at 1/1 scale the loop portion  20  of the device  10  of FIG. 1 in its nominal form whereby the opening  34  has a length L of 2.87 inches, a width W of 1.0 inch and a perimeter  36  that is 6.3 inches. FIGS. 14, 15 and  16  illustrate at 1/1 scale the deformation of the loop portion  20  of FIG. 13 when penises  1 ,  2 ,  3 , respectively, having girths of 3.8 inches, 5.0 inches and 6.0 inches, respectively, are placed into the opening  34 . These sizes represent the smaller 10%, the mean, and the larger 10% of penises of men referenced in the previously discussed study. In each case, the lateral portions  28   a ,  28   b  expand laterally to the extent that their inner surfaces  30   a ,  30   b  nominally bilaterally contact each penis  1 ,  2 , or  3 . At least one free space  180  remains between the perimeter  36  of the opening  34  and the surface of each penis  1 ,  2 , or  3 , which will be the case as long as the girth of the penis does not exceed the length of the perimeter  36 . As long as a free space  180  remains, circumferential constriction to the penises  1 ,  2 ,  3  does not occur. It is noted that when the progressively larger penises  1 ,  2 ,  3 , respectively, are in the opening  34 , the width W 1 , W 2 , W 3 , respectively, increases to where it equals the diameter of the penis  1 ,  2 ,  3 , respectively; the length L 1 , L 2 , L 3 , respectively, decreases; and the cross-sectional area of the opening  34  increases. However, in all cases the perimeter  36  remains substantially the same. Accordingly, this embodiment permits ease of installing and removing the loop portion  20  from the various sized penises  1 ,  2 ,  3  and also, with the aid of a lubricant, permits slidable axial movement of the penises  1 ,  2 ,  3  within the opening  34 .  
         [0064]    [0064]FIG. 17 shows a phallic portion  222  that has a recess  223  with a diameter D 5  in its proximal end  237 , and a prescribed length of an elastomeric cylinder  282  having a diameter D 6  between 0.5 and 1.0 inch. The phallic portion  222  contains a vibrator  240  therein that has a pair of electric wires  252  attached for the purpose of subsequent connection to a controller (not shown). The cylinder  282  is bent and its ends  284   a ,  284   b , are placed into the recess  223  as indicated by arrows A 1 , A 2 , which results in a loop portion  220  of another alternative device  210  shown in FIG. 18. The loop portion  220  is substantially teardrop shaped and has an opening  234  that has a length L 4 , a width W 4  that is less than 1.2 inches, and a perimeter  236  that is at least 6.0 inches long. The cylinder  282  is tubular with thick walls as shown in FIG. 19, however it could also be solid. The diameter D 5  of the recess  223  is slightly less than twice the diameter D 6  of the cylinder  282 , which results in the ends  284   a ,  284   b  collapsing somewhat in the recess  223  as illustrated in FIG. 20. A suitable adhesive  286  is applied between the ends  284   a ,  284   b  and the recess  223 , which permanently affixes the formed loop portion  220  to the phallic portion  222 . A remotely located controller  254  is provided that is connected to the vibrator  240  in the device  210  via the pair of electric wires  252 .  
         [0065]    [0065]FIG. 21 shows a device  310  of yet another embodiment similar to the device  210  of FIG. 18. The device  310  includes a proximally positioned loop portion  320  and a distally positioned phallic portion  322 . The phallic portion  322  preferably is between 3.0 and 6.0 inches long and has a vibrator  340  therein that has a pair of electric wires  352  connected thereto that interconnect with a controller  354 . The loop portion  320  is formed from a prescribed length of cylindrical, thin-walled elastomeric tubular material  382  that has ends  384   a ,  384   b , whereby the tubular material  382  is bent and its ends  384   a ,  384   b  are placed in a recess  323  in a proximal end  337  of the phallic portion  322  whereat they are bonded thereto with a suitable adhesive  386 . The tubular material  382 , which has a diameter D 7  between 0.5 and 1.0 inch, is relatively thin-walled as shown in FIG. 22, as compared to the tubular material  282  of the device  210  (FIG. 18). Consequently, said forming causes the tubular material  382  to collapse at a proximal portion  324  of the loop portion  320 , which results in a kink  388 , which is more fully understood with reference to FIG. 23. The resulting substantially football-shaped loop portion  320  has an opening  334  defined by an inner surface  326  of the proximal portion  324  and inner surfaces  330   a ,  330   b  of lateral portions  328   a ,  328   b , respectively. The opening  334  has a length L 5 , a width W 5  less than 1.2 inches, and a perimeter  336 . The pre-formed length of tubular material  382  is such that the resulting perimeter  336  is at least 6.0 inches long.  
         [0066]    [0066]FIG. 24 shows at 1/1 scale a penis  4  with a girth of  5  inches positioned within the opening  334  of the loop portion  320  of the device  310 . The lateral portions  328   a ,  328   b  are expanded to the extent that their inner surfaces  330   a ,  330   b  nominally bilaterally contact the penis  4 . Free spaces  380 , remain between the inner surfaces  326 ,  330   a ,  330   b , of the opening  334  and the surface of the penis  4 . The perimeter  336  remains substantially unchanged and circumferential constriction to the penis  4  does not occur. In fact, due to the compliant nature of the elastomeric material of the loop portion  320 , additional compliance is provided as inner walls  389   a ,  389   b , of the lateral portions  328   a ,  328   b  adjacent the penis  4  collapse somewhat as illustrated in FIG. 25.  
         [0067]    Although the loop portions described herein would fit virtually any penis with a girth up to 6.0 inches without causing circumferential constriction, a user may prefer a more custom fit. For this purpose a constraining ring  390  can be provided as illustrated in FIGS. 26 and 27. The constraining ring  390  has a length LC, and an aperture  392  that has an inside diameter D 8  that is equal to or less than two times the diameter D 7  of the tubular material  382  comprising the loop portion  320 . The constraining ring  390  can be readily installed on the device  310  by simply pulling the loop portion  320  through the aperture  392  until the constraining ring  390  seats against the proximal end  337  of the phallic portion  322  as shown in FIGS. 28 and 29. When the constraining ring  390  is so placed, it locally constrains a distal length of the loop portion  320  equal to the length LC of the constraining ring  390  as shown in FIGS. 28 and 29, which in effect shortens the length L 5  of the opening  334  (FIG. 21) by the same amount. This results in a smaller opening  394  having a reduced length L 6 . It also causes the width W 5  (FIG. 21) to narrow to a new width W 6  and the perimeter  336  (FIG. 21) to reduce to a new perimeter  395 . Accordingly, by installing a constraining ring having an prescribed length, the size of a loop opening can be adjusted to more correctly fit smaller girthed penises. Although the constraining ring  390  is described in conjunction with the device  310 , it would have equal utility with other embodiments of the present invention described herein.  
         [0068]    [0068]FIG. 30 shows a device  410  comprising a phallic portion  422  having a vibrator  440  positioned therein that has a pair of electric wires  452  that interconnect with a remotely disposed controller (not shown). For purposes of this invention, the controller could alternatively be positioned within the phallic portion in a manner similar to that shown in FIGS.  9 - 12 . The phallic portion  422  has a recess  423  with an opening dimension D 9  in its proximal end  437  whereby the recess  423  includes retaining/adjusting means comprising a plurality of grooves G 1 , G 2 , G 3 , G 4 , incrementally spaced at a dimension L 7 . The device  410  includes an attachable loop portion  420  made of cylindrical elastomeric material, which may be tubular, comprising a proximal portion  424  and two lateral portions  428   a ,  428   b  that converge at a distal portion  432 . Said proximal and lateral portions  424 ,  428   a ,  428   b , respectively, have inner surfaces  426 ,  430   a ,  430   b , respectively, that define an opening  434  having a length L 8 , a width W 7 , and a perimeter  436  at least 6.00 inches long. The distal portion  432  has an outside dimension D 10  that is equal to or greater than the opening dimension D 9  of the recess  423 . The distal portion  432  additionally includes a complimentary retaining/adjusting means comprising a rib  497  that is configured to snugly fit in any of the grooves G 1 , G 2 , G 3 , or G 4 . This configuration enables the user to incrementally adjust the effective length L 8  and width W 7  of the opening  434 , and consequently the perimeter  436 , by pressing the distal portion  432  of the attachable loop portion  420  into the recess  423  until the rib  497  seats in a selected groove G 1 , G 2 , G 3  or G 4 , whereby a distal length of the lateral portions  428   a ,  428   b  is constrained by the recess  423 . For example, as shown in FIG. 31, the rib  497  has been positioned in groove G 2  whereby a portion of the lateral portions  428   a ,  428   b  is constrained which causes the original length and width L 8 , W 7 , respectively, to reduce to a new length and width L 9 , W 8 , respectively, resulting in a reduced opening  435  having a reduced perimeter  439 . And by pressing the attachable loop portion  420  into the recess  423  even deeper until the annular rib  497  seats in either annular groove  3  or  4 , even more of the lateral portions  428   a ,  428   b  are constrained resulting in an even smaller loop opening (not shown). An alternative retaining/adjustment means is shown in FIG. 32 whereby the rib  497   a  on the distal portion  432   a  is in the form of a male screw thread and the grooves G in the recess  423   a  are in the form of a female screw thread. In this case the user simply screws the attachable loop portion  420   a  in or out of the recess  423   a  at the proximal end  437   a  of the phallic portion  422   a , which effects either a reduction or an increase, respectively, in the size of the loop opening  434   a.    
         [0069]    There is shown in FIG. 33 a device  510  comprising a phallic portion  522  and an attachable loop portion  520  made of cylindrical elastomeric material, which may be tubular. The phallic portion  522  has a vibrator  540  therein that is connected to an internally disposed controller (not shown). The loop portion  520  comprises a proximal portion  524  and two lateral portions  528   a ,  528   b  that converge at a distal portion  532 . Said proximal and lateral portions  524 ,  528   a ,  528   b , respectively, have inner surfaces  526 ,  530   a ,  530   b , respectively, that define an opening  534  having a length L 10 , a width W 9 , and a perimeter  536  at least 6.0 inches long. The length L 10  is at least 1.5 times the width W 9 . The phallic portion  522  has a proximal end  537  that is configured to snugly engage a recess  523  in the distal portion  532  of the loop portion  520 . The proximal end  537  has an annular rib  597  that is configured to seat in an annular groove G 5  in the recess  523  when the proximal end  537  is fully seated in the recess  523 . The annular rib  597  and annular groove G 5  serve to function as a retaining means when the phallic portion  522  is assembled to the loop portion  520  as shown in FIG. 34. The proximal end  537  additionally includes a switch actuator  556  that is rotatable relative to the remainder of the phallic portion  522 . The switch actuator  556  has a distally protruding central shaft  571  that actuates an electric switch (not shown) that turns the vibrator  540  on and off. The switch actuator  556  has a polar array of equally spaced longitudinal ribs  555  around its perimeter and the recess  523  includes a mating array of longitudinal grooves  557  that engage the longitudinal ribs  555  when the proximal end  537  is fully inserted in the recess  523  as shown in FIGS. 34 and 35. The longitudinal ribs  555  and longitudinal grooves  557  provide an anti-slipping means between the loop portion  520  and the switch actuator  556 . This enables the user to turn the vibrator  540  on and off by rotating the loop portion  520  axially with respect to the phallic portion  522 . Although the foregoing embodiment is described in conjunction with an internally disposed controller, a device may just as easily be configured with a remotely disposed controller, in which case an actuator would be omitted. Also, the retaining means could be reversed where a distal portion of a loop portion could have an external rib thereon and a proximal end of a phallic portion could contain a recess having a groove therein.  
         [0070]    [0070]FIG. 36 shows even another embodiment of the present invention that comprises a device  610  configured for the express purpose of mutual stimulation to both a man and a woman during sexual intercourse. The device  610  includes a loop portion  620  made of cylindrical elastomeric material, which may be tubular, and an attached phallic portion  622  that contains a vibrator  640  therein. The vibrator  640  is interconnected with a controller  654  via a pair of electric wires  652 . The phallic portion  622  has a length LP 1  that is minimally adequate to enclose the vibrator  640 . The loop portion  620  has an opening  634  that has a perimeter  636  that is at least 6.0 inches long. The device  610  also has loops  698  having openings  699  positioned on lateral surfaces  700   a ,  700   b  that provide means for the attachment of a harness  701 , which is worn by a woman  702  represented in phantom line in FIG. 37. The harness  701  comprises elastic straps  703  configured to encircle the woman&#39;s legs and/or waist to efficiently bold the opening  634  of the loop portion  620  in place in front of the woman&#39;s  702  vagina.  
         [0071]    Although the present invention has been herein described and illustrated in terms of particular embodiments, it is not limited to these embodiments. Other embodiments, equivalents, and modifications, which would still be encompassed by the invention, can be made by those skilled in the art, particularly in light of the foregoing teachings. Alternative embodiments, equivalents or modifications, may be included within the spirit and scope of the invention as defined by the claims.