referring now to fig1 - 32 , a separable fastener that includes at least a locking portion and a button , which is interconnected to an electronic device , is shown herein . one embodiment of the present invention includes a locking portion with a resiliently deflectable tab that employs a locking protrusion that is adapted to selectively interconnect with a button . engagement and disengagement of the button is achieved by selectively deflecting the tab in order to provide a obstruction - free path for which the button to travel . alternatively , in another embodiment of the invention , a button is provided that employs a beveled area that is adapted to provide an obstruction free path for removal when the beveled area is rotated to a predetermined angle . referring now to fig1 - 4 , one embodiment of the present invention is shown herein . in general , a one - piece integral belt clip holder 60 is a union of a belt clip 10 and a locking portion 30 of a separable fastener which are attached by a web 31 of plastic or other material with resilient properties , made from a material such as rubber , deflectable plastic , etc . the web 31 is resilient to allow for attachment to a belt when pressure is applied to the finger grip on the clip portion 12 and the finger grip on the lock portion 13 . alternatively , the lower portions of the belt clip 10 and the locking portion 30 may be pulled apart to allow for selective interconnection to a belt or other object . the lock portion 30 employs a flexible plastic tab 15 with a lip 16 that secures a button and prevents upward movement and disengagement from the lock portion 30 . alternatively , other types of residual materials commonly known in the art may be used , including rubber , polyethylene , etc . a locking pocket 19 constrains the button portion of the separable fastener , and consists of a front wall 17 , a back wall 18 , and side pocket walls 22 . when the tab 15 is flexed , the non - locking portion remains supported in the pocket and is easily disengaged . the belt clip portion 10 may be equipped with a hook 11 which will help maintain the unit on the user &# 39 ; s belt . both portions of the belt clip 10 and the locking portion 30 of the separable fastener are integrally molded preferably with open molded spaces 14 and 21 which eliminates assembly , inherent labor costs , and the expenses related thereto . referring now to fig5 - 7 and fig2 - 27 , a secondary engaged portion of the separable fastener is shown , and which is designed for interconnecting to an electric device such as a cellular phone , radio , etc . this item is referred to herein as a button 42 , and is generally comprised of a plastic material such as polypropylene , polyethylene , etc . the button &# 39 ; s attachment surface 41 is connected to the button 42 by a stem 46 such that the button 42 is easily slipped into the pocket of the lock . in one embodiment , the interconnecting stem 46 and / or the attachment area 41 may be made of rubber or other resilient material capable of deflection which will decrease stresses on the button and electronic device interface when a force is applied to a portion of the electronic device . the stem 46 is not limited to a cylindrical shape . for example , a rectangularly shaped stem 46 may be used which would provide resiliency in one direction and greater stiffness in the others . also , at the button to electronic device interface , a resilient material will provide a better bond between the button attachment surface 41 and the electronic device because the resilient material will be capable of deflection and conformance to the electronic device that may have a non - planar shape . the button 42 dictates the mobility of the item when it is locked in the pocket . more specifically , a square shape will give a user substantially no rotation , while a round button shape will allow for free rotation . alternatively in one embodiment , notches 43 may be employed to provide a variety of rotational positions depending on the preferred application . the button attachment surface 41 is selectively interconnected to an electronic device or an electronic device carrying pouch by means including sewn , glued , integrally molded , clipped , screwed , riveted , taped , or tied to the electronic device . the button attachment surface 41 may further employ a rivet hole 45 or stitching holes 44 to facilitate interconnection with an electronic device or electronic device carrying pouch . one embodiment of the present invention is adapted for interconnection to a sleeve or holster that is adapted to secure a cellular phone , wherein the sleeve encompasses all or a portion of the cellular phone &# 39 ; s body . referring now to fig8 the locking function of one embodiment of the present invention is illustrated herein . more specifically , the button 42 is shown interconnected to the electronic device 50 , while the integral belt clip and holder 60 is shown with a tab 15 in the locked position . to lock the electronic device 50 into place , in one embodiment the user applies pressure to the tab 15 in the direction of the clip portion 10 of the integral assembly 60 . alternatively embodiments may employ release mechanisms which are pushed in different directions of release . after pressure is applied to the tab 15 , there is an unobstructed path for the button 42 to engage the pocket 19 . that is , the button interface 42 can be easily guided downward into the lock pocket 19 . when the user releases the pressure on the tab 15 the locking portion of the tab 16 will prevent the button interface 42 from traveling upward . thus , the electronic device 50 is released by the application of pressure to the tab 15 towards the clip portion 10 of the integral assembly 60 , thereby deflecting the tab , separating the lock 16 and button interface 42 , and providing an unobstructed path in which the electronic device can travel in an upward direction . the requisite pressure that deflects the tab 15 prior to the introduction of the button interface 42 into the pocket 19 can be supplied by the interface 42 itself . more specifically , the user can initiate the downward motion of the electronic device 50 into the pocket 19 without touching the tab 15 . thus , the contact of the interface 42 with the tab 15 , along with the downward force supplied by the user , will sufficiently deflect the tab 15 so that the interface 42 will engage the pocket 19 . referring now to fig9 the button 42 is shown interconnected to the electronic device 50 , while the belt clip 10 is attached to the user &# 39 ; s 5 belt . the tab 15 of the lock 30 has been flexed towards the user 5 , while the button interface has been seated in the pocket 19 , and the tab 15 has been released . thus , the button has been prevented from upward motion by the lock 16 , and the electronic device 50 is operably interconnected to belt clip and holder 60 . referring now to fig1 - 14 , a second embodiment of the present invention is shown herein . this embodiment is similar to the first embodiment of the present invention shown in fig1 - 9 , but the single piece molding is modified to simplify manufacturing because “ side pulls ” on the mold are not required . in some molding processes side pulls are required to form holes or cavities into the final product . by deleting the need for side pulls , an integral design is moldable using a two - piece mold construction , and more clips can be made using a single mold . the requirement of side pulls adds complexity and cost to the molding operation . more specifically , the belt clip portion 10 is constructed slightly longer than the locking portion 30 . in addition , the belt clip finger grip is split into two pieces 12 a and 12 b . referring now to fig1 , a third embodiment of the present invention is shown herein that employs a pin 7 and spring mechanism to connect the locking 30 and clip 10 portions of the unit . more specifically , the pressure on the finger grips 12 and 13 is reduced by the use of a pin and spring such that selective interconnection to a user &# 39 ; s belt or other object is more easily performed . referring now to fig1 - 20 , a fourth embodiment of the present invention is shown herein which is more durable and specifically designed for larger items such as radios , cd players , pdas , inventory devices , water bottles , etc . in this embodiment of the present invention , the locking feature 3 on the integral assembly 60 is not attached to a flexible tab . instead , the locking portion 30 employs a small protrusion 3 , which interfaces with a flexible tab 2 on the button 42 when the button is seated in the pocket 19 and the tab 2 is released . further , the halves are connected by a thicker interface 32 which increases the strength of the unit . referring now to fig2 , the locking function of one embodiment of the present invention is illustrated herein . more specifically , the button 42 is shown interconnected to a sleeve 36 on a larger device 50 , while the integral belt clip and holder 60 is shown with a stationary locking protrusion 3 . the sleeve 36 may be used to selectively secure the larger device 50 to the button 42 if attachment locations on the item 50 are not feasible . to lock the device into place the user applies pressure to the tab 2 on the button 42 . after pressure is applied to the tab 15 there is an unobstructed path for the button 42 to engage the pocket 19 , that is , the button 42 may be easily guided downward into the lock pocket 19 . when the user releases the pressure on the tab 2 , the locking portion of the integral assembly 3 will prevent the button 42 from traveling upward because a portion of the tab 2 will selectively interconnect with the lock 3 . the item is released by the application of pressure to the tab 2 thereby deflecting the tab , separating the lock 3 and the tab interface 4 , and providing an unobstructed path in which the device can be moved upward . the requisite pressure that deflects the tab 2 prior to the introduction of the button interface 42 into the pocket 19 can be supplied by the interface 4 itself . more specifically , the user can initiate the downward motion of the device into the pocket without touching the tab 2 . the contact of the interface 4 with the lock 3 , along with the downward force supplied by the user , will sufficiently deflect the tab 2 so that the button interface 42 will be able to be seated into the pocket 19 . referring now to fig2 , the button 42 is shown interconnected to the larger device 50 , while the belt clip 10 is attached to the user &# 39 ; s 5 belt . the tab 2 of the button 42 has been flexed towards the device 50 , the button interface has been seated in the pocket 19 , the tab 2 has been released , and the button has been prevented from upward motion by the contact of the interface 4 with the lock 3 . referring now to fig2 - 25 , a fifth embodiment of the present invention is shown that employs a thick connection interface 32 , but is substantially similar to the first two embodiment described with respect to the aspects of the locking feature . in order for any locking mechanism to work properly in some embodiments of the present invention , a gap 70 must be integrated into the locking portion 30 of the integral design to allow unrestricted travel of the locking tab 15 . this gap 70 will extend from the back surface of the locking portion 71 to the back wall of the locking pocket 18 a . when the user deflects the tab 15 , the gap 70 will provide sufficient deflection of the tab 15 so that the button 42 will not come in contact with the locking lip 16 when a user inserts and removes a device from the integral assembly 60 . the greater the gap 70 , the easier and quicker the button can be inserted and released from the pocket and lock . referring now to fig2 , a “ hard stop ” is shown . as used herein , a hard stop 1 is any type of backing material , detent , or other mechanism which prevents the tab 15 from extending or deflecting past a predetermined position . the predetermined position may be dictated by the maximum deflection the tab 15 can move without incurring damage . to engage and disengage a button from the integral assembly 60 , a user must depress the tab 15 toward the belt clip 10 of the integral assembly . extreme deflections of the tab 15 may fatigue the material such that it will be permanently deformed or break . in order to prevent this detrimental effect , the hard stop 1 maybe added to the belt clip portion 10 of the integral assembly 60 . when a user applies pressure on the tab 15 towards the belt clip portion 10 , the tab 15 will deflect enough for engagement or disengagement of a button , but the tab 15 will be stopped from further deflection when it comes in contact with the hard stop 1 . preferably , the hard stop 1 is molded integrally with the belt clip 10 . further , the hard stop 1 may be added to or molded onto the tab 15 of the locking portion 30 of the integral assembly 60 as opposed to the belt clip 10 , as discussed above . when a user applies pressure on the tab 15 towards the belt clip portion 10 , the tab 15 will deflect enough for engagement or disengagement of a button , but the tab 15 will be stopped from further deflection when the hard stop 1 on the tab 15 comes in contact with the belt clip portion 10 . referring now to fig3 - 32 , an alternate embodiment of the present invention is shown herein . more specifically , a button 42 that employs a beveled area 73 is shown that is adapted to selectively interconnect with the lock portion 30 of the clip 60 . when interconnecting , the beveled area 73 allows the button 42 to pass unobstructed into the locking pocket 19 . once seated in the pocket 19 , the button &# 39 ; s 42 non - beveled area selectively interconnects with the locking protrusion 3 of the locking portion 30 , thereby preventing removal . to separate the button 42 from the locking portion 30 , the user rotates the button 42 , such that the beveled area 73 is proximate to the locking protrusion 3 , thereby providing an unobstructed path for the button 42 to travel . in contrast to the previously - described embodiments , this embodiment requires no deflection of the tab employed on the clip . more specifically , the shape of the bevel 73 allows the button 42 to be inserted into the lock 30 without resiliently deflecting the locking tab , and wherein a predetermined rotation allows the button 42 to be removed from the lock 32 because the lock 30 and the button 42 are adapted to slide past each other . this feature is highly desirable for individuals who have difficulty using their hands , wherein use of the resiliently deflectable tab may be difficult . further , individuals , such as the elderly or the disabled , will be able to easily utilize this embodiment of the present invention since the unlocking mechanism simply entails selective rotation of the electronic device . generally , the button 42 is constructed with a predetermined thickness . in order to create the bevel 73 , the thickness of the button 42 is selectively trimmed at a predetermined angle relative to the top of the button 42 . this cut defines a bevel portion 73 on the button 42 which allows for unobstructed travel of the button 42 in and out of the lock . more specifically , the button 42 is defined after the bevel 73 is created by an unaffected portion of length d and a bevel of angle θ . the angle θ and the length d may be of any dimension depending on the thickness of the button 42 and the locking requirements required . preferably , in one embodiment of the invention , d is about { fraction ( 3 / 8 )} inches . in addition , the beveled portion 73 may span any distance around a perimeter of the circular button 42 as long as sufficient non - beveled area remains to ensure that locking is possible , wherein more than small rotations of the electronic device will cause unlocking . for example , in one embodiment of the invention the bevel spans at least about 50 %, or about 180 °, around the perimeter of the button 42 . further , the bevel 73 may be made of one smooth swept cut around the perimeter , or may be made of a series of faceted cuts to allow for various locking and unlocking options . in one embodiment of the present invention , the angle θ is about 30 °. to provide clarity to the various components found in the drawings , and the numbering of the various components provided herein : # component 1 hard stop 2 extended tab 3 locking protrusion 4 extended tab / protrusion interface location 5 user 7 pin 10 belt clip portion 11 hook 12 belt clip finger grip 12a belt clip finger grip 12b belt clip finger grip 13 locking portion finger grip 14 open molding area 15 tab 16 locking lip 17 front wall of locking pocket 17a front wall of locking pocket ( looking from the belt clip ) 18 back wall of locking pocket 18a back wall of locking pocket ( looking from the belt clip ) 19 locking pocket 21 open molding space 22 side pocket walls 30 lock portion 31 web 32 belt clip / lock portion interface 36 sleeve 41 button attachment surface 42 button 43 button notches 44 stitch holes 45 rivet hole 46 stem 50 electronic device or other item 60 integral belt clip and holder 70 gap 71 back surface of locking portion 73 button bevel area while various embodiments of the present invention have been described in detail , it is apparent that modifications and adaptations of those embodiments will occur to those skilled in the art . however , it is to be expressly understood that such modifications and adaptations are within the spirit and scope of the present invention , as set forth in the claims that follow .
a combined belt clip and locking fastener is provided which is adapted for selectively securing an electronic device such as a cellular telephone or personal digital assistant to a belt or other object . more specifically , one embodiment of the present invention includes a beveled button interconnected to the electronic device that is adapted for removable interconnection to a locking portion of a separable fastener based on a rotational movement .