Abstract:
A portable mobile media device adapter to enable secure and adjustable mounting of a mobile media device on a standard tripod or other supporting devices to allow hands-free viewing and operation of the mobile media device. The portable mobile media device adapter consists essentially of a snap-on shell portion; a flat tablet portion which has one flat surface and one decorated surface, the flat surface adhered to the outside surface of the snap-on shell portion, the decorated surface further has a surface aperture, one threaded nut further having a threaded through hole disposed permanently within the flat tablet portion; and an elongated kick stand assembly having a top end and a bottom end, the top end further has one horizontal threaded through hole and one matching threaded bolt wherein the matching threaded bolt fastens the top end to the threaded nut of the flat tablet portion, the bottom end further has an elongated bottom threaded bolt extending downwardly therefrom.

Description:
RELATED APPLICATIONS 
     This application is a Non-provisional application related to U.S. Provisional Patent Application Ser. No. 61/383,509 filed Sep. 16, 2010 entitled THE MOSY MOUNT ALLOWS YOU TO MOUNT ALMOST ANY HANDHELD TOUCH SCREEN DEVICE ONTO ALMOST ANY STANDARD TRIPOD; which is related to U.S. Provisional Patent Application Ser. No. 61/235,434 filed Aug. 20, 2009 entitled A PROTECTIVE COVER FOR iPHONE OR OTHER HANDHELD DEVICE THAT CAN BE MOUNTED TO A STANDARD TRIPOD, OR ANY DEVICE THAT INCLUDES A STANDARD ¼″ MOUNTING BOLT, both of which are incorporated herein by reference in their entirety. This application claims any and all benefits to which it is entitled therefrom. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates to a portable, temporary holding device for portable digital media devices such as the iPhone®, and more particularly to an adjustable tripod, kick stand and other peripheral components that stabilize and hold a media player in a secure, steady and adjustable position for easy hands free video recording, viewing and other usage. “iPhone” is a registered trademark of Apple Corporation. 
     BACKGROUND OF THE INVENTION 
     Mobile media devices featuring photograph and video taking/viewing functions such as the iPhone®, Droid (registered trademark of Motorola Corporation), etc., are becoming increasingly popular in today&#39;s market with thousands of videos and other files easily downloadable through the internet for rent or purchase. With mobile media device owners usually holding their media players with their own hands for lengthy periods of time to take and view these pictures and videos, there is a need for a portable device holder that allows users to view pictures, video or other files hands free, closer to one&#39;s face, and/or at an adjustable optimum viewing angle. Also, it is important to have hands-free operation for self driving automobiles, taking self portraits or other photograph/video taking occasions. 
     The present invention can be adapted to be used with any standard tripod and can be adapted to work with almost any model of hand held media device. The present invention, more specially, is a semi-rigid pad of polyurethane rubber or other plastic that is adhered to a semi-rigid shell that snaps onto the back of the hand held, optionally touch screen, media device. In one embodiment, it has a ¼″-20 square nut embedded, to allow it to be mounted on all standard tripod bolts, or any device or armature that features a ¼″ bolt. This includes suction cups, straps, lanyards, mono-pods and or clamps. 
     Currently, there are several means by which you can mount a hand held touch screen media device onto a tripod but most are either large and or bulky. There are currently a limited variety of cases that can be attached to a standard tripod, many of them are only for the iPhone and can only be attached to a proprietary tripod. The products currently available use: (1) a proprietary mounting system that only works with a particular tripod that also may be too large for some applications, such as tabletop usage, (2) a fixed positioned mount to be used only on flat ground surfaces, (3) too small for some applications, such as outdoor panoramic or studio photography. 
     The present invention is made to supplement existing cases and/or be attached directly to the hand held media device. This concept is executed in a variety of designs and motifs that offer additional function and personalization of the hand held media device it is attached to. One of the designs allows the rubber or plastic mound to be trimmed to a smaller size without adversely affecting the overall look of the device. 
     The concept of the present invention and its rubber or plastic coupling mound offers universal usability, and user customization options. The rubber or plastic mound can be offered pre-applied to a case, or independently with a high bond adhesive pre-applied. This allows the user the choice of how and where it is applied. 
     Traditionally there are holders which allow users to insert media players. Their primary function is to either electrically charge the media player, provide a safety case, or provide a speaker base for listening to music. Although holders can be installed inside a moving vehicle, there are no dedicated portable media holders that allow either an iPod or an iPhone to be positioned hands free and attached to a tripod. 
     There are a variety of different holders for electronic devices that have been created over the past years such as the following listing: 
     
       
         
               
               
               
             
               
               
               
             
           
               
                   
               
               
                   
                 Pat./Publication No. 
                 Title: 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 1. 
                 20070045495A1 
                 Mobile Device Clamp Holder With  
               
               
                   
                   
                 Damped Release Mechanism 
               
               
                 2. 
                 20060126824A1 
                 Electronic Device Holder 
               
               
                 3. 
                 20060126824A1 
                 Portable Electronic Device Clamp 
               
               
                 4. 
                 20040254002A1 
                 Clamping Device for Mobile Phones 
               
               
                 5. 
                 20020113185A1 
                 Holder For A Portable Electronic Device 
               
               
                 6. 
                 6366672 
                 Mobile Phone Holder 
               
               
                 7. 
                 6360083 
                 Clamping/Holding Device 
               
               
                 8. 
                 6085113 
                 Hand-free Holding Device For A  
               
               
                   
                   
                 Mobile Telephone Set II 
               
               
                 9. 
                 5903645 
                 Clamping Device For Mobile Phones 
               
               
                 10.  
                 5836563 
                 Mobile Phone Holder 
               
               
                 11.  
                 5825874 
                 Mobile Telephone Holder 
               
               
                 12. 
                 5703946 
                 Mobile Phone Holder 
               
               
                 13. 
                 5697071 
                 Mobile Phone Holder Structure 
               
               
                 14. 
                 5555302 
                 Mobile telephone Holder 
               
               
                   
               
             
          
         
       
     
     U.S. Pat. No. 6,366,672 issued Apr. 4, 2002, entitled, MOBILE PHONE HOLDER, describes a clamping mechanism for mobile phones which attaches to power outlets found inside vehicles. However, the invention only allows for certain limited horizontal and vertical movement, whereas, the present invention allows for much better positioning of the media player. The prior art is designed specifically to attach to the power outlet of a vehicle, and has no means of being secured to other surfaces, such as a lamp, a bedpost, a pole, an airplane tray table, etc., as in the present invention. 
     U.S. Publication No. 20060126824A1 published Sep. 28, 2006, entitled, ELECTRONIC DEVICE HOLDER, describes a clamping mechanism for an electronic device which allows for easy access to the controls of an electronic device. The prior art also includes a flexible arm to support the device and allows the prior art to stand on a flat surface. The prior art, however, does not allow it to be affixed to non-flat surfaces. The present invention, uses a bottom clamp specifically designed to firmly attach to a variety of different objects or surfaces rather than be confined to flat surfaces like the prior art. In addition securely clamping onto surfaces also provides further stability of the holder itself as compared to a stand resting on a flat surface. 
     U.S. Publication No. 20070045495A1 published Mar. 1, 2007, entitled, MOBILE DEVICE CLAMP HOLDER WITH DAMPED RELEASE MECHANISM, describes a clamping mechanism for a portable electronic devices where at least the first clamping jaw being displaceable toward the second clamping jaw to clamp the mobile electronic device. However, this prior art does not include an elongated flexible shaft which allows for optimum positioning of the mobile device. The prior art also does not include structure for securing the clamp portion to a solid surface, such as a lamp, a bedpost, a pole, an airplane tray table, etc., as found in the present invention. 
     ADVANTAGES AND SUMMARY OF INVENTION 
     The present invention is a holding and securing device that allows for hands free operation of portable media devices. 
     One object and advantage of the present invention is its portability providing the user with a hands free, adjustable operation experience for a wide variety of hand-held mobile media devices. 
     Another object and advantage of the present invention is to provide the user with a much improved operation experience as the present invention provides adjustability of the mobile media device both horizontally and vertically, and allows secure positioning of such mobile devices. 
     Another object and advantage of the present invention is its ability to attach quickly, easily and securely to a variety of tripods. 
     Yet another object and advantage of the present invention is its thin body, i.e., approximately ¼″ thick, and possesses the ability to hold many different types of portable media devices and even some cellular phones. 
     Yet another object and advantage of the present invention is that it can stand up and maintain a secure position on virtually any surface. 
     Yet another object and advantage of the present invention is its portable size and foldable structure that makes for easy travel inside a user&#39;s pocket, handbag, backpack, briefcase or luggage when traveling. 
     Further details, objects and advantages of the present invention will become apparent through the following descriptions, and will be included and incorporated herein. 
     The invention possesses other objects and advantages especially as concerns particular characteristics and features thereof which will become apparent as the specification continues. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1A  is a representative isometric view of the tripod adapter for hand-held mobile media devices  100  of the present invention. 
         FIGS. 1B and 1C  are representative schematic views of the method of use of tripod adapter for hand-held mobile media devices  100  of the present invention. 
         FIG. 2  is are representative views of four different design of plastic or rubber pad  108  of the tripod adapter for hand-held mobile media devices  100  of the present invention. 
         FIG. 3A  is a representative isometric view of the assembled apparatus  300  of the tripod adapter for hand-held mobile media devices  100  of the present invention. 
         FIG. 3B  is a representative detail view of the assembled apparatus  300  of the tripod adapter for hand-held mobile media devices  100  of the present invention. 
         FIGS. 4A and 4B  are representative schematic views showing the method of use of the tripod adapter for hand-held mobile media devices  100  of the present invention with a conventional tripod. 
         FIGS. 5A ,  5 B,  5 C and  5 D are representative top, side and isometric views of an alternative embodiment of plastic or rubber pad  108 ′ of the tripod adapter for hand-held mobile media devices  100 ′ of the present invention. 
         FIGS. 6A ,  6 B,  6 C,  6 D and  6 E are representative schematic views of an alternative embodiment of assembled apparatus viz. a wrist/head band adapter  600  for the tripod adapter for hand-held mobile media devices  100 ″ of the present invention.  FIGS. 6F and 6G  are representative schematic views of the method of use of the wrist/head band adapter  600  of the tripod adapter for hand-held mobile media devices  100 ″ of the present invention. 
         FIGS. 7A ,  7 B and  7 C are representative top views of three alternative embodiments of plastic or other elastomeric pad with lens plate  702 ,  704  and  706 . 
         FIGS. 8A ,  8 B,  8 C and  8 D are representative isometric view, top rear view, side view of a closed mode, side view of deployed mode of an alternative embodiment of the tripod adapter for hand-held mobile media devices  800  of the present invention. 
         FIGS. 8D ,  8 E and  8 F are representative schematic views showing the method of use of an alternative embodiment of tripod adapter for hand-held mobile media devices  800  of the present invention. 
     
    
    
     For a better understanding of the invention reference is made to the following detailed description of the preferred embodiments thereof which should be considered in conjunction with the prior described drawings. 
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The description that follows is presented to enable one skilled in the art to make and use the present invention, and is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principals discussed below may be applied to other embodiments and applications without departing from the scope and spirit of the invention. Therefore, the invention is not intended to be limited to the embodiments disclosed, but the invention is to be given the largest possible scope which is consistent with the principals and features described herein. 
       FIG. 1A  is a representative isometric view of tripod adapter for hand-held mobile media devices  100  of the present invention. As shown in  FIGS. 1A and 3A , the present invention  100  consists essentially of snap on case  102 , plastic pad  108  and assembled apparatus  300 . In one embodiment, snap on case  102  is a top open case that snaps onto and provides a snug but temporary hold for any mobile devices (not shown). Users can exchange snap on case  102  of different sizes to best suit their mobile devices&#39; dimension. In one embodiment, there is camera aperture on snap on case  102  in order not to block the camera lens of mobile media devices (not shown). 
     In one embodiment, plastic pad  108  is the most essential portion of tripod adapter for hand-held mobile media devices  100  of the present invention. In one embodiment, plastic pad  108  accommodates a ¼″-20 TPI hex nut in the form of threaded nut or threaded brass insert  104 . In an alternative embodiment, rubber pad  108  is manufactured by injection molding producing a single piece of rubber or plastic that includes the mound that allows a threaded hex nut or brass threaded insert to be embedded onto a snap on case  102 . 
     As best shown in  FIG. 1A , threaded nut or threaded brass insert  104  is embedded within plastic pad  108 . In one embodiment, threaded nut or threaded brass insert  104  is a tablet having a threaded center through hole practically functioning as a ¼″-20 TPI hex nut. Plastic pad  108  is a flat structure having one flat surface  107  and one decorated surface  109 . As shown in  FIG. 1A , in one embodiment, plastic pad  108  has a tapered slot  112  that holds any ¼″-20 TPI bolt thumbscrew in place onto snap on case  102 . Optionally, plastic pad  108  can be adhered either temporarily or permanently at the flat surface  107  to a mobile devices (not shown). Or alternatively, as best shown in  FIG. 1A , plastic pad  108  can be adhered either temporarily or permanently at the flat surface  107  to snap on case  102  for more versatility. 
     The key function of plastic pad  108  is to provide a secure method for the positioning of the threaded nut  104  to snap on case  102 . Additionally, plastic pad  108  provides options for design aesthetics and marketing opportunities.  FIG. 2  is are representative views of four different designs of plastic pad  108  of the tripod adapter for hand-held mobile media devices  100  of the present invention. As best shown in  FIG. 2 , plastic pad  108  can be decorated by using different molds, materials, colors. Additionally, decorated surface  109  provides the opportunities for engraving design elements and/or marketing messages. 
       FIGS. 1B and 1C  are representative schematic views of the method of use of the tripod adapter for hand-held mobile media devices  100  of the present invention. As shown in  FIGS. 1B and 1C , main stem  106 , which is part of part of assembled apparatus  300 , has one threaded end  114  which is a ¼″-20 TPI bolt and one anchor end  116 . For simple angled elevation, users can simple fasten threaded end  114  to tapered slot  112  of plastic pad  108 , snap on case  102  and media device (not shown) will be elevated at an angle either vertically or horizontally. This operation mode is especially useful for viewing of pictures, videos as the media device (not shown) is being held at a stable position on any flat surface. In alternative embodiments, with threaded nut or threaded brass insert  104  in place, tripod adapter for hand-held mobile media devices  100  can be adapted to be utilized with other various sized stationary platforms (not shown) utilizing extendable, retractable, bendable, or deformable appendices in effect to hold snap on case  102  and media device (not shown) in a stationary manner as long as those platforms have matching threaded end or bolt to tapered slot  112  of plastic pad  108 . It will be understood that the mobile media device leans or rests on the tip or end  116  of the elongated stem portion  106 . 
       FIG. 3A  is a representative isometric view of assembled kick stand  300  of tripod adapter for hand-held mobile media devices  100  of the present invention.  FIG. 3B  is a representative detail view of assembled kick stand  300  of tripod adapter for hand-held mobile media devices  100  of the present invention. In one embodiment, assembled kick stand  300  consists top cap  301  attached integrally to ¼″-20 TPI threaded bolt  302 , which both are made of plastic, rubber or aluminum; matching cap  305  which has ¼″-20 threaded insert; main stem  106 ; main barrel  309  and base cap  312  which has ¼″-20 threaded bolt  311  at one end. The main function of assembled kick stand apparatus  300  is to provide a secure connection between plastic pad  108  and any stationary horizontal platforms (not shown) in effect to hold snap on case  102  and media device (not shown) perpendicularly in a stationary manner as long as those platforms have matching threaded end or bolt to threaded nut or threaded brass insert  104  of plastic pad  108 . As best shown in  FIG. 3B , top cap  301  is threaded through threaded opening  303  of main stem  106  and subsequently to plastic pad  108  at tapered slot  112  to the embedded threaded nut or threaded brass insert  104 . Subsequently, users can simple fasten threaded end  114  of main stem  106  to any supporting horizontal platform (not shown) that has a matching threaded hole, hence providing secure hold to plastic pad  108 . Alternatively, in the event that supporting horizontal platform (not shown) has a matching threaded bolt instead, users can simply fasten the threaded end  114  of main stem portion  106  to the top end of main barrel  309  with optional rubber washer  307  in between. Subsequently, the bottom end of main barrel  309  which has an threaded insert hole  320  is fastened to any supporting horizontal platform (not shown) that has a matching threaded bolt, hence providing secure hold to plastic pad  108 . There are two main functions for main barrel  309 , one is to provide elevation to plastic pad  108  and eventually the entire tripod adapter for hand-held media devices  100  of the present invention. By switch to main barrel  309  of different lengths, users can control the level of elevation. The second function of main barrel  309  is to provide versatility to the present invention  100  to be used on different supporting horizontal platform (not shown). By switching to different main barrel  309  that has insert hole  320 ′ of different threaded dimension and pattern, the present invention  100  can be fastened to a variety of supporting horizontal platforms (not shown) that have different connecting means or threaded bolts of various threaded dimension and pattern. In one embodiment, when assembled kick stand portion  300  is not in use, base cap  312  is fastened to main barrel  309 . Optionally, there is a hoop  322  at the bottom end of base cap  312  for easy carrying. 
       FIGS. 4A and 4B  are representative schematic views showing the method of use of the tripod adapter for hand-held mobile media devices  100  of the present invention with a conventional tripod  402 . As best shown, conventional tripod  402  has a horizontal platform that consists of ¼″-20 threaded bolt  404 , matchingly to insert hole  320  of main barrel  309 . In one embodiment, ¼″-20 threaded bolt  404  is fastened to main barrel  309  of assembled apparatus  300  erecting the entire present invention  100 . Subsequently, ¼″-20 TPI threaded bolt  302  of top cap  301  is fastened to plastic pad  108  through threaded opening  303  of main stem  106  and tapered slot  112  of plastic pad  108 , hence providing more stability, as well as providing a way to set the handheld device (not shown) in a position optimal for viewing content or using applications such as photo and video taking on the device (not shown). As mentioned, by switching to a different main barrel  309  that has insert hole  320 ′ of various sizes and pattern, the present invention  100  can be mounted on any tripod or other supporting, holding devices. 
       FIGS. 5A ,  5 B,  5 C and  5 D are representative top, side and isometric views of an alternative embodiment of the plastic pad  108 ′ of the tripod adapter for hand-held mobile media devices  100 ′ of the present invention. In one alternative embodiment, the additional feature is the built in splitting kick stand  508 . As shown in  FIG. 5A , kick stand  505  further consists pivot pin  502 , pivoting hinge  504  and splitting kick stand  508 . In one embodiment, kick stand  505  has a default flat position, laying in a recessed groove  512  within the plastic pad  108 . When it is not in use, nibs  506  are responsible to keep splitting kick stand  508  in place. Once the kick stand  508  is released from the nibs  506 , it can split into two legs  510 . The splitting of the kick stand  508  provides better stability when deployed, by offering a wider stance than offered by a single point of contact. As best shown in  FIG. 5B , splitting kick stand  508  can provide angled elevation to plastic pad  108 , resembling what is best shown in  FIG. 1B . Additionally, users can separate splitting kick stand  508  into two legs  510 . By rotating each leg  510  around its corresponding pivoting hinge  504 , users can adjust the degree of elevation and angle. 
       FIGS. 6A ,  6 B,  6 C,  6 D and  6 E are representative schematic views of an alternative embodiment of assembled apparatus viz. a wrist/head band adapter  600  of the tripod adapter for hand-held mobile media devices  100 ″ of the present invention. In one embodiment, wrist/head band adapter  600  consists of button cap  604  which further has ¼″-20 threaded bolt head  606 , wrist/head band  602  which is a long strip of soft and elastic cloth-like material and two matching velcro patches  601  and  603 . As best shown in  FIG. 6A , ¼″-20 threaded bolt head  606  pierced through wrist/head band  602  and its position is secured by washer  605 . As best shown in  FIG. 6E , for headband adaptation of wrist/head band adapter  600 ′, wrist/head band  602  is longer to adequately wrap around a regular person&#39;s head. In one alternative embodiment, instead of having two matching velcro patches  601  and  603  as closing means, hooked peg  611  and peg holes  613  can be adopted for adjustability. 
       FIGS. 6F and 6G  are representative schematic views of the method of use of the wrist/head band adapter  600  and  600 ′ of the tripod adapter for hand-held mobile media devices  100 ″ of the present invention. As best shown in  FIG. 6G , users would fasten ¼″-20 threaded bolt head  606  of button cap  604  to the embedded threaded nut  104  of plastic pad  108  and then wear head band adapter  600 ′ around their head, making the hand-held mobile media device (not shown) face forward. This set up is useful for photographic or video shooting to show a user&#39;s vantage point and perspective, or to broadcast an imge from the device to third parties visualizing or listening to the device worn by the user. As best shown in  FIG. 6F , users can also wrap wrist band adapter  600  around their hand or palm, wrist or even a couple fingers for an easy and flexible operation mode when taking pictures or video or other applications. 
       FIGS. 7A ,  7 B and  7 C are representative top views of three alternative embodiments of plastic pad with lens plate  702 ,  704  and  706 . The main difference of the three alternative embodiments of plastic pad with lens plate  702 ,  704  and  706  to plastic pad  108  is the addition of a lens panel. As shown in  FIG. 7A , lens plate  712  is installed at the corner of plastic pad  702 . Optionally, lens plate  702  can be slid outward such that lens  710  will cover the camera of mobile media device (not shown). Lens  710  can be any type of optical lenses such as tinted lens, microscopic lens, etc. that provide additional options for users. Alternatively, as best shown in  FIG. 7B , instead of a sliding panel, revolving lens plate  714  is pivoted at pivotal pin. In another alternative embodiment, as best shown in  FIG. 7C , flipping lens plate  716  is pivoted at the edge of plastic pad with lens plate  706 . 
       FIGS. 8A ,  8 B,  8 C and  8 D are representative isometric rear view, top rear view, side view of closed mode, side view of deployed mode of an alternative embodiment of tripod adapter for hand-held mobile media devices  800  of the present invention. The main additional function of this alternative embodiment  800  is to provide an adjustable angled elevation such that users can view or operate their mobile media devices (not shown) hands free. In one embodiment, an alternative embodiment of tripod adapter for hand-held mobile media devices  800  consists of plastic plate  824 , body  808  and two bracing feet  810  and  812 . As best shown in  FIGS. 8E and 8F , plastic plate  824  is connected to body  808  by body pivot hinge  806 . Plastic plate  824  is similar to plastic pad  108  but made of rigid plastic, and instead of embedded with threaded nut or threaded brass insert  104 , contains, supports, and/or houses a rotating plate  820  which further has a ¼″-20 plate threaded hole  802 . In one embodiment, plastic plate  824  is made of materials such as plastic which is rigid and stiff to provide the support required to hold the mobile media or computing device elevated as a tripod would. Optionally, plastic plate  820  can be adhered either temporarily or permanently to a mobile device (not shown) or to snap on case  102  for more versatility. The body  808  also has a matching ¼″-20 body threaded hole  820 . As shown in  FIG. 8A , when the alternative embodiment of the present invention  800  is closed, body threaded hole  820  aligns with plate threaded hole  802  on plastic plate  824  such that the alternative embodiment  800  functions exactly the same as plastic pad  108 . As shown in  FIG. 8D , body  808  is connected to two bracing feet  810  and  812  at two identical feet hinges  804 . 
       FIGS. 8D ,  8 E and  8 F are representative schematic views showing the method of use of an alternative embodiment of the tripod adapter for hand-held mobile media devices  800  of the present invention. As shown in  FIGS. 8D ,  8 E, and  8 F when alternative embodiment of tripod adapter for hand-held mobile media devices  800  is deployed, bracing feet  810  and  812  provide a stable stand for the entire embodiment  800 . Users can adjust the positions of each bracing feet  810  and  812  at feet hinges  804  respectively. Users can also adjust viewing angle and elevation by adjusting body pivot hinge  806 . 
     Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Although any methods and materials similar or equivalent to those described can be used in the practice or testing of the present invention, the preferred methods and materials are now described. All publications and patent documents referenced in the present invention are incorporated herein by reference. 
     While the principles of the invention have been made clear in illustrative embodiments, there will be immediately obvious to those skilled in the art many modifications of structure, arrangement, proportions, the elements, materials, and components used in the practice of the invention, and otherwise, which are particularly adapted to specific environments and operative requirements without departing from those principles. The appended claims are intended to cover and embrace any and all such modifications, with the limits only of the true purview, spirit and scope of the invention.