Abstract: A mandibular advancement device having a first frame and a second frame, the first frame having a first occlusal surface and a first generally U-shaped groove, the second frame having a second occlusal surface and second generally U-shaped groove, having a first sidewall orthogonal to the first occlusal surface and a second sidewall orthogonal to the first occlusal surface and parallel to the first sidewall. There is a rib between the first and second sidewall and parallel to the first and second sidewalls and having a top that is narrower than a middle, a third sidewall orthogonal to the second occlusal surface, the third sidewall in relative position to be slidingly received adjacent the first sidewall, and a fourth sidewall orthogonal to the second occlusal surface, the third sidewall in relative position to be slidingly received adjacent the second sidewall. A channel of the second occlusal surface disposed in relative position to snappingly receive the rib.

Abstract: Disclosed is a connector for hingedly mounting a buttstock to a receiver of a rifle having a swinging hinge portion, a buttstock side of the swinging hinge portion, an interface side of the swinging hinge portion, a threaded portion of the swinging hinge portion, a buffer hole extending from the interface side, through the swinging hinge portion, and through the threaded portion, a recess on the interface side of the swinging hinge portion, a bolt, and a base of the bolt rotationally constrained in the recess.

Abstract: Disclosed is a connector for hingedly mounting a buttstock to a receiver of a rifle having a swinging hinge portion, a buttstock side of the swinging hinge portion, an interface side of the swinging hinge portion, a threaded portion of the swinging hinge portion, a buffer hole extending from the interface side, through the swinging hinge portion, and through the threaded portion, a recess on the interface side of the swinging hinge portion, a bolt, and a base of the bolt rotationally constrained in the recess.

Abstract: Disclosed is a connector for hingedly mounting a buttstock to a receiver of a rifle having a fixed hinge portion having a receiver side and an interface side, a threaded protrusion integrally formed with the fixed hinge portion and extending from the receiver side of the fixed hinge portion, a threaded ring sized in relative proportions to threadably interface with the threaded protrusion, and a buffer hole extending from the interface side, through the fixed hinge portion, and through the threaded protrusion. The threaded protrusion can be threadably received in the receiver of the rifle and the threaded ring can be configured to be threadably tightened about the threaded protrusion and against the receiver. The threaded ring can have a threaded inner surface, an outer surface, and a first and second sides. The outer surface can have a first and second raised portions separated by a notch.

Abstract: A mandibular advancement device having a first frame and a second frame, the first frame having a first occlusal surface and a first generally U-shaped groove, the second frame having a second occlusal surface and second generally U-shaped groove, having a first sidewall orthogonal to the first occlusal surface and a second sidewall orthogonal to the first occlusal surface and parallel to the first sidewall. There is a rib between the first and second sidewall and parallel to the first and second sidewalls and having a top that is narrower than a middle, a third sidewall orthogonal to the second occlusal surface, the third sidewall in relative position to be slidingly received adjacent the first sidewall, and a fourth sidewall orthogonal to the second occlusal surface, the third sidewall in relative position to be slidingly received adjacent the second sidewall. A channel of the second occlusal surface disposed in relative position to snappingly receive the rib.

Abstract: Disclosed is a device for loading a cartridge into a magazine having a cartridge loader ramp and a magazine guide. A guide pin can connect the magazine guide to the cartridge loader ramp such that the magazine guide is slidably connected to the cartridge loader ramp about the guide pin. The device can further have a base and the cartridge loader ramp can be inclined with respect to the base. The cartridge loader ramp can have a top and a foot can be disposed on the top of the cartridge loader ramp. When a magazine is inserted in the magazine guide and pressed down, a cartridge on the cartridge ramp can partially compress the magazine spring. The foot can push the cartridge into the magazine. An adapter sleeve can resize the magazine guide for use with a variety of magazines.

Abstract: Disclosed is a firepit topper having a plate having a top side and a bottom side, a central opening of the plate, a first channel partially surrounding the central opening, a second channel partially surrounding the central opening, and an end of the first channel that is offset with respect to an end of the second channel.

Abstract: A mandibular advancement device having a first frame and a second frame, the first frame having a first occlusal surface and a first generally U-shaped groove, the second frame having a second occlusal surface and second generally U-shaped groove, the mandibular advancement device having a first rib protruding from the first occlusal surface of the first frame, a first upstanding sidewall protruding from the first occlusal surface of the first frame, a first inner surface of the first upstanding sidewall, the first inner surface generally parallel to, offset from, and facing the first rib, a first set of teeth on the inner surface of the first upstanding wall, the first set of teeth facing the first rib and orthogonal to the first occlusal surface, a first channel of the second occlusal surface of the second frame, the first channel in relative position to interface with the first rib, an opening of the first channel, the opening of the first channel having a width that is narrower than a width of the first r

Abstract: Disclosed is a connector for hingedly mounting a buttstock to a receiver of a rifle. The connector has a fixed hinge portion, a receiver side of the fixed hinge portion, an interface side of the fixed hinge portion, a threaded protrusion extending from the receiver side of the fixed hinge portion, a buffer hole extending from the interface side, through the fixed hinge portion, and through the threaded protrusion, a tube lock hole extending from the interface side, through the fixed hinge portion, to the receiver side, and a lock screw sized in relative proportions to be threadably received in the tube lock hole.

Abstract: Disclosed is a device for loading a cartridge into a magazine having a cartridge loader ramp and a magazine guide. A guide pin can connect the magazine guide to the cartridge loader ramp such that the magazine guide is slidably connected to the cartridge loader ramp about the guide pin. The device can further have a base and the cartridge loader ramp can be inclined with respect to the base. The cartridge loader ramp can have a top and a foot can be disposed on the top of the cartridge loader ramp. When a magazine is inserted in the magazine guide and pressed down, a cartridge on the cartridge ramp can partially compress the magazine spring. The foot can push the cartridge into the magazine. An adapter sleeve can resize the magazine guide for use with a variety of magazines.

Abstract: Disclosed is a device for loading a cartridge into a magazine having a cartridge loader slide, a channel in the cartridge loader slide, a magazine guide, and a pin disposed in the channel and connecting the magazine guide to the cartridge loader slide. An adapter sleeve can have an inside surface for receiving the magazine and an outside surface for mating with the magazine guide. The outside surface of the adapter sleeve can be sized in relative proportions to be received in the magazine guide and the inside surface of the adapter sleeve can be sized in relative proportions to receive the magazine.

Abstract: Disclosed is a magazine loader having a base, a groove of the base, a cartridge loader slide, a channel in the cartridge loader slide, a mating portion of the cartridge loader slide sized in relative proportions to mate with the groove in the base, a magazine guide, a pin connecting the magazine guide to the cartridge loader slide; and a housing partially covering the magazine guide.

Abstract: A mandibular advancement device having a first frame and a second frame, the first frame having a first occlusal surface and a first generally U-shaped groove, the second frame having a second occlusal surface and second generally U-shaped groove, the mandibular advancement device having a first rib protruding from the first occlusal surface of the first frame, a first upstanding sidewall protruding from the first occlusal surface of the first frame, a first inner surface of the first upstanding sidewall, the first inner surface generally parallel to, offset from, and facing the first rib, a first set of teeth on the inner surface of the first upstanding wall, the first set of teeth facing the first rib and orthogonal to the first occlusal surface, a first channel of the second occlusal surface of the second frame, the first channel in relative position to interface with the first rib, an opening of the first channel, the opening of the first channel having a width that is narrower than a width of the first r

Abstract: Disclosed is a mandibular advancement device including a first frame, a second frame, a first rib on the first frame, the first rib extending generally from a front side of the first frame to a back side of the first frame, a first upstanding sidewall facing the first rib, a first channel on the second frame, the first channel in relative position to interface with the first rib, and an opening of the first channel, the opening of the first channel having a width that is narrower than a width of the first rib.

Abstract: Disclosed is a mandibular advancement device including a first frame, a second frame, a first rib on the first frame, the first rib extending generally from a front side of the first frame to a back side of the first frame, a first upstanding sidewall facing the first rib, a first channel on the second frame, the first channel in relative position to interface with the first rib, and an opening of the first channel, the opening of the first channel having a width that is narrower than a width of the first rib.

Abstract: A mobility aid for quadrupeds includes a support frame having a front end and a rear end, at least one leg member having a distal end and a proximal end connected to the support by a joint, the joint permitting the leg member to pivot between an upright position and a folded position, the joint further comprising a biasing means that urges the at least one leg element toward the upright position, at least one wheel at the distal of the at least one leg member, and at least one actuator attached to the at least one leg member, the at least one actuator contacting the ground on an opposite side of one of at least one wheel from the front end of the support.

Abstract: A mobility aid for quadrupeds includes a support frame having a front end and a rear end, at least one leg member having a distal end and a proximal end connected to the support by a joint, the joint permitting the leg member to pivot between an upright position and a folded position, the joint further comprising a biasing means that urges the at least one leg element toward the upright position, at least one wheel at the distal of the at least one leg member, and at least one actuator attached to the at least one leg member, the at least one actuator contacting the ground on an opposite side of one of at least one wheel from the front end of the support.