Abstract: A system for manipulating an engagement interface associated with securing accessories to a firearm. The system includes at least one accessory mount adapter that includes a first side that is constructed to cooperate with an engagement interface defined by a structure, such as a hand guard, that is securable to a firearm. A second side of the adapter defines a second engagement interface that is different than the first engagement interface and is configured to removably cooperate with a firearm accessory.

Abstract: A canopy including a flexible cover and a framework. The cover carries two rods, one secured to each of the opposite sides of the cover. Each of the rods has a gear attached to each of its ends. Brackets attached to the four corners of the framework each include a socket sized to receive the rod end, and, also, each bracket includes a pawl. When the rod is positioned in the socket, the gear on the rod is aligned with the pawl on the bracket to complete a ratchet tensioning mechanism that can be operated to progressively tighten the cover over the framework. To install the cover, the cover is rolled up on the rods and placed on the framework. The cover is then unrolled from the rods towards opposite sides of the framework where the rods are secured in the bracket sockets, tightened by the ratchet mechanisms, and secured by a locking pin. The operation is simply reversed when the cover is to be stored on top of the framework, or removed for storage elsewhere.

Abstract: A system for manipulating the engagement interface associated with securing accessories to a firearm. The system includes at least one accessory mount adapter that includes a first side that is constructed to cooperate with an engagement interface defined by a structure, such as a hand guard, that is securable to a firearm. A second side of the adapter defines a second engagement interface that is different than the first engagement interface and is configured to removably cooperate with a firearm accessory.

Abstract: A gas tube assembly for semiautomatic firearms is defined by a body having a first end, a second end, and a passage formed through the body between the respective ends. The first end of the body of the gas tube is constructed to cooperate with a gas block and the second end of the body is constructed to cooperate with a forward facing end of a receiver assembly. A first projection and a second projection each extend in a respective outward radial direction from the body proximate the second end of the body and a respective adjuster is associated with each respective projection. The adjusters are configured to movably cooperate with the respective projection to align the second end of the body relative to the receiver assembly.

Abstract: A handguard mount assembly and method of forming a handguard mount assembly that includes a mount clip that is defined by a body having a first portion constructed to be received in a slot defined by hand guard and define a smallest diameter associated with a receiver end of the hand guard. The body of the mount clip preferably includes a second portion that radially indexes the mount clip, and a hand guard associated therewith, relative to a receiver associated with the underlying firearm such that the mount clip defines a maximum compression associated with the hand guard and prevents rotation of the hand guard relative to the receiver when assembled.

Abstract: An apparatus for the deployment of four curtains for the sides of boat ‘wet slips’ and boat lifts, car ports or the like. A synchronized roller system is provided to roll up or down each of the four curtains that surround a space to be enclosed by the curtain system.

Abstract: A hand guard mount assembly and method of securing a hand guard to a firearm in a manner that resists rotation and/or longitudinal translation of the hand guard relative to the underlying firearm. The hand guard mount assembly includes a mount clip that is defined by a body having a first portion and a second portion. The first portion of the clip is constructed to be received in a slot defined by a hand guard and defines a smallest diameter associated with a receiver end of the hand guard. The second portion of the clip radially and/or longitudinally indexes the mount clip, and a hand guard associated therewith, relative to at least one of a barrel nut, a barrel, and a receiver associated with the underlying firearm.

Abstract: A hydraulic boat lift uses two hydraulic cylinders to pull/release cables attached to a boat cradle. The hydraulic cylinders are operated by attachment to a tandem pump to cause them to operate in a synchronized fashion. Furthermore a switch assembly has a switch associated with each respective hydraulic cylinder, the pair of switches being wired in parallel so that if one side of the boat cradle reaches its fully raised position before the other side, the one side will stop and the other side will continue to move up until it is also disposed in a fully raised position before stopping by turning off the electricity to the tandem pump.

Abstract: A hydraulic boat lift uses two hydraulic cylinders to pull/release cables attached to a boat cradle. The hydraulic cylinders are operated by attachment to a tandem pump to cause them to operate in a synchronized fashion. Furthermore a switch assembly has a switch associated with each respective hydraulic cylinder, the pair of switches being wired in parallel so that if one side of the boat cradle reaches its fully raised position before the other side, the one side will stop and the other side will continue to move up until it is also disposed in a fully raised position before stopping by turning off the electricity to the tandem pump.

Abstract: A wedge-shaped trailer tailgate providing a loading ramp and a planar surface in combination with the trailer deck when the tailgate is in its transport position. A planar deck is better for cargo hauling, but also provides little wind resistance for improved hauling efficiency. The wedge shape with elastic bumpers attached provides for support on loading heavy objects such as motorcycles. Taillights are recessed into the thick end of the wedge-shaped trailer tailgate so they face backward when the tailgate is in its transport position and are shielded under the trailer deck when the tailgate is in its loading-ramp position.