referring now in more detail to the drawings , the invention will now be described in more detail . referring now to fig1 , the invention is generally shown as a . the invention comprises an upper retaining member 10 that is pivotally connected to the interior of a grill door , generally shown as 12 . the invention also includes a base retaining member 14 that is pivotally connected to the interior of a grill door and an extension arm , generally shown as 16 that pivotally interconnects the upper retaining member 10 and the base retaining member 14 . in one embodiment , base 14 includes two substantially identical and opposing side frames 14 a and 14 b that are interconnected by a plurality of cross bars 14 c , d and e . these side frames and cross bars provide the base retaining member 14 a generally rectangular shape adapted to receive the bottom of a paper bag . when the trash receptacle holder is in the fully erect position , the base retaining member supports the weight of the bag and any refuse in the bag and therefore , acts as a support member . the base retaining member also includes a rear frame 14 f that is pivotally connected to the grill door 12 by means of two fasteners 18 a and b . rear frame 14 f is pivotally connected to the grill door 12 and is generally positioned parallel to cross bars 14 c - e . however , two sections of rear frame 15 a & amp ; b are positioned substantially perpendicular to cross bars 14 c - e to provide horizontal spacing between cross bars 14 c - e and rear frame 14 f when the receptacle holder is in a collapsed position . as will be discussed more fully below , the horizontal spacing of rear frame allows rear frame to act as a stop that prevents base retaining member 14 to rotate more than 90 degrees with respect to the interior of the grill door when the receptacle holder is placed in an erect position . cross bar 14 c is pivotally connected to a first end of the extension arm 16 , which interconnects the base retaining member 14 with the upper retaining member 10 . the upper retaining member is pivotally connected to the door via two fasteners 20 a and b and is also pivotally connected to an upper end of the extension arm 16 . the upper retaining member has a first side retaining member 10 a and a second side retaining member 10 b opposing the first side retaining member . the upper retaining member also has a front side retaining member 10 c interconnecting both side retaining members 10 a & amp ; b . these retaining members give the upper retaining member 10 a shape generally adapted to receive and enclose the circumference of a paper bag . as can be seen in fig1 , when in the fully collapsed position , the extension arm 16 lays substantially flat against the interior of the grill door 12 , which in turn causes the upper retaining member 10 and the lower retaining member to lay substantially flat against the interior of the door . this collapsed configuration allows the receptacle holder to fold up into a very compact area so as to leave as much of the storage space in the interior of the grill housing available for other items when the receptacle holder is not in use . as can be seen in fig2 , the extension arm , generally shown as 16 , comprises a first arm , generally shown as 22 , that is pivotally connected to a second arm , generally shown as 24 . when in the fully erect position , the trash bag receptacle holder provides a sturdy base , generally shown as 14 , that is capable of carrying a substantial amount of weight due to the contact between the door , generally shown as 12 , and the rear frame 14 f of the base retention member . this contact prevents the base retention member 14 from rotating past a position that is generally perpendicular to the door when in the fully erect position . similarly , the lower extension arm 24 and the upper extension arm 22 vertically support the upper retaining member 10 to maintain it in a generally perpendicular position to the door . when in the fully erect position , the two extension arms 22 and 24 act as a frontal retention bar , keeping the trash bag from bulging through the front of the space between the upper and lower retaining members . the bottom retaining member 14 has a generally rectangular shape to support the bottom of a typical paper bag and the upper retaining member has a shape that is adapted to circumferentially receive the paper bag . therefore , when the paper bag is lowered into the upper retaining member until the bottom of the bag comes in contact with the lower retaining member 14 , the invention provides a bottom support by means of the bottom retaining member 14 , side supports by way of the upper retaining member 10 which encloses the circumference of the upper portion of the paper bag and a front support which is created by the upper extension arm 22 and the lower extension arm 24 . referring now to fig3 a - d , the process by which the trash receptacle is placed into a fully erect position is shown . in fig3 a , the unfolding of the extension arm can be more clearly seen . a first distal end 22 a of the upper extension arm 22 is pivotally connected to the upper retaining member 10 and a second distal end 22 b is pivotally connected to the lower extension arm 24 . the trash receptacle can be placed in a fully erect position by rotating the first distal end 22 a of the upper extension arm upwardly from a position that is substantially parallel to the grill door 12 to a position that is generally perpendicular to the grill door . as first distal end 22 a is rotated , the second distal end 22 b pivots about the connection point 26 with extension arm 24 . the rounded shape of second distal end 22 b allows the second end to guide the rotation so that the upper extension arm 22 can be rotated easily . as will be discussed more fully below , the shape of the second distal end also facilitates the collapsing the receptacle by ensuring smooth and proper rotation of the second distal end 22 b . referring now to fig3 b , the first distal end 22 a of the upper extension arm is rotated about the pivotal joint 26 connecting the upper extension arm 22 and lower extension arm 24 , which causes the second distal end 22 b to rotate about the pivotal connection 26 . the curved nature of the second distal end 22 b facilitates the rotation of the upper extension arm 22 and causes the first distal end of the lower extension arm 24 a to move away from the interior surface of the grill door 12 . the movement of the first distal end 24 a of the lower extension arm causes the lower retaining member 14 to rotate in a clockwise direction about the pivotal fastener ( shown in fig1 as 18 a ). similarly , as the first distal end of the upper extension arm 22 a is rotated about the pivotal joint 26 , the upper retaining member 10 is caused to rotate in a counterclockwise direction about the fastener 20 a . the more that the first distal end 22 a is rotated about the pivotal joint 26 , the further the first distal end 24 a of the lower extension arm is distanced from the interior of the door 12 and the further the upper retaining member 10 and base retaining member 14 rotate with respect to the interior of the grill door 12 . as can be seen in fig3 c , the upper extension arm 22 continues to be rotated in a counter clockwise direction , causing the lower extension arm 24 to continually rotate in a clockwise direction . the first distal end 22 a of the upper extension arm is rotated until both retaining members 10 and 14 are placed in a generally perpendicular relation to the interior of the door 12 . the contact between rear frame 14 f and the interior door 12 causes the base retaining member 14 to maintain its generally perpendicular position with respect to the interior of the door 12 as is shown in fig1 . the ends of the extension arms 22 b and 24 b continue to rotate about the joint 26 until the receptacle reaches the fully erect position shown in fig3 d . once the receptacle reaches the fully erect position , the extension arms cease to rotate and maintain their extended position . as can be seen more clearly in fig1 , the upper extension arm 22 is adapted to receive and enclose the lower extension arm when the apparatus is placed in a collapsed position . as discussed above the curved nature of the second distal end 22 b facilitates the rotation of the extension arms 22 and 24 . however , the curved nature of the second distal end also determines the angle between the upper extension arm 22 and lower extension arm when the receptacle is placed in the fully erect position . as can be seen in fig1 , the second distal end generally shown as 22 b , has a first curved side 23 a , a second opposing and substantially identical curved side 23 b and an angled top 23 c interconnecting the two sides . as with the entire upper extension arm 22 , there is no base interconnecting the two opposing sides , allowing the upper extension arm to receive and enclose the lower extension arm 24 when in a collapsed position . as can be seen in fig2 and 3d , when placed in a fully erect position , the angled top acts as a block and only allows the extension arms to rotate into an angled position with respect to one another that has an angle that is the same as the angled between the angled top 23 c and the remainder of the extension arm 22 , thus maintaining the fully erect position . if the angled top were not included , the extension arms would be free to rotate nearly 360 degrees with respect to one another and the erect position could not be maintained . in alternate embodiments , the erect position may be maintained by a number of different locking mechanisms or a combination thereof . for example , the extended position may be maintained by the use of a pivotal hinge 26 having a locking mechanism that prevents the extension arms 22 and 24 from rotating past the fully erect position shown in fig3 d . in other embodiments , there may be a locking mechanism included in the joint connecting the first distal end 22 a of the upper extension arm and the upper retaining member 10 preventing over rotation of the upper extension arm past the fully erect position . similarly , the joint interconnecting the distal end 24 a of the lower extension arm and the base retaining member 14 may include a locking mechanism that prevents rotation of the lower extension arm past the fully erect position shown in fig1 . in alternate embodiments there may be a combination of locking mechanisms for maintaining the erect position . these locking mechanisms would likely be used only if the upper extension arm 22 did not include the angled top 23 c to maintain the fully erect position . further , it should be noted that the invention could be constructed so as to be integrally connected to the outdoor grill or could be constructed so that it could be attached to an outdoor grill as an aftermarket product . in this alternate embodiment where the invention could be attached to the outdoor grill , the connection means 20 a & amp ; b and 18 a & amp ; b would not be welded or integrally attached to the outdoor grill but instead would be secured by means known in the art such as a screw , adhesive , solder or the like . in either embodiment , the invention would work as described above . while a preferred embodiment of the invention has been described using specific terms , such description is for illustrative purposes only , and it is to be understood that changes and variations may be made without departing from the spirit or scope of the following claims .
the invention generally relates to a trash receptacle holder for use on an outdoor grill that includes an upper retaining member capable of circumferentially receiving a trash receptacle ; a lower retaining including a platform adapted to support a trash receptacle when said trash receptacle holder is in an erect position ; an extension arm operatively connected to said upper and lower retaining members and allowing said upper and lower retaining members to be rotated into said collapsed position where said upper and lower retaining members are in a position that is generally perpendicular to the ground and an erect position where said upper lower retaining members are in a position that is generally parallel to the ground and a trash receptacle may be placed on said lower retaining member and circumferentially received by said upper retaining member .