Abstract: A pump kit includes a motor assembly including a first spline as an output, the first spline being coupled with a second spline of an actuator shaft; the actuator shaft including an extension with male threading threaded with an inner female threading of a piston within a through hole of the piston; and the piston including an external slot with a component having an at least partial spherical surface sitting therein, the component having the at least partial spherical surface also being partly positioned within a hole within an outside of a housing; where the slot, the component having the at least partial spherical surface, and the hole in the housing are configured to prevent the piston from rotating in an operational configuration, such that the operational configuration instead includes the piston moving toward a fluid cavity within the housing.

Abstract: The exemplary embodiments herein provide a dual fuel system with a recreational vehicle electric battery for use with a power generation assembly. The system comprises a combustion engine with a stator assembly for generating power and further having a gasoline pump, an LP shutoff valve, and a carburetor valve. The system further comprises a recreational vehicle battery, a DC rectifier in electrical communication with the stator assembly, a fuel selection switch, and a digital fuel valve control module (DFVCM). Multiple fuels are safely controlled while interchanging power between a battery and the DC rectifier.

Abstract: A ball ramp caliper brake is disclosed. The brake can include a housing having an actuator side with a first pad nearer thereto and a carrier side with a second pad nearer thereto; the actuator side including ball ramps on an inner part, and threaded holes, the carrier side including housing holes therethrough; bolts respectively passing through one of the housing holes and respectively threaded into one of the threaded holes, to thereby compress a respective spring against the first pad; a lever having ball ramps facing the actuator side ball ramps; and a plurality of balls each being between respective ones of the ball ramps; wherein the springs are positioned coplanar with a radial center of the ball ramps, such that force of the springs provides constant compressive load on the ball ramps, and such that the force does not cause the first pad to tip.

Abstract: Disclosed herein are various embodiments of an electric generator system comprising an electric generator positioned within a housing assembly, an engine positioned within the housing assembly and operatively coupled to the electric generator, a muffler assembly positioned within the housing assembly, a dividing plate positioned vertically between the engine and the muffler assembly, and a muffler bellow which passes through the dividing plate.

Abstract: The exemplary embodiments herein provide a dual fuel system with a recreational vehicle electric battery for use with a power generation assembly. The system comprises a combustion engine with a stator assembly for generating power and further having a gasoline pump, an LP shutoff valve, and a carburetor valve. The system further comprises a recreational vehicle battery, a DC rectifier in electrical communication with the stator assembly, a fuel selection switch, and a digital fuel valve control module (DFVCM). Multiple fuels are safely controlled while interchanging power between a battery and the DC rectifier.

Abstract: In the disclosure herein, an electric generator system is shown and comprises a housing assembly, an electric generator positioned within the housing assembly, an engine positioned within the housing assembly and operatively coupled to the electric generator, a muffler assembly positioned within the housing assembly, and a dividing plate positioned between the engine and the muffler assembly. Exemplary embodiments include an engine fan positioned within the housing and driven by the engine with an engine fane inlet opening formed radially around the engine fan.

Abstract: A ball ramp caliper brake is disclosed. The brake can include a housing having an actuator side with a first pad nearer thereto and a carrier side with a second pad nearer thereto; the actuator side including ball ramps on an inner part, and threaded holes, the carrier side including housing holes therethrough; bolts respectively passing through one of the housing holes and respectively threaded into one of the threaded holes, to thereby compress a respective spring against the first pad; a lever having ball ramps facing the actuator side ball ramps; and a plurality of balls each being between respective ones of the ball ramps; wherein the springs are positioned coplanar with a radial center of the ball ramps, such that force of the springs provides constant compressive load on the ball ramps, and such that the force does not cause the first pad to tip.

Abstract: The exemplary embodiments herein provide a dual fuel system with a recreational vehicle electric battery for use with a power generation assembly. The system comprises a combustion engine with a stator assembly for generating power and further having a gasoline pump, an LP shutoff valve, and a carburetor valve. The system further comprises a recreational vehicle battery, a DC rectifier in electrical communication with the stator assembly, a fuel selection switch, and a digital fuel valve control module (DFVCM). Multiple fuels are safely controlled while interchanging power between a battery and the DC rectifier.

Abstract: The exemplary embodiments herein provide a dual fuel system with a recreational vehicle electric battery for use with a power generation assembly. The system comprises a combustion engine with a stator assembly for generating power and further having a gasoline pump, an LP shutoff valve, and a carburetor valve. The system further comprises a recreational vehicle battery, a DC rectifier in electrical communication with the stator assembly, a fuel selection switch, and a digital fuel valve control module (DFVCM). Multiple fuels are safely controlled while interchanging power between a battery and the DC rectifier.

Abstract: The exemplary embodiments herein provide a dual fuel system with a recreational vehicle electric battery for use with a power generation assembly. The system comprises a combustion engine with a stator assembly for generating power and further having a gasoline pump, an LP shutoff valve, and a carburetor valve. The system further comprises a recreational vehicle battery, a DC rectifier in electrical communication with the stator assembly, a fuel selection switch, and a digital fuel valve control module (DFVCM). Multiple fuels are safely controlled while interchanging power between a battery and the DC rectifier.

Abstract: In the disclosure herein, an electric generator system is shown and comprises a housing assembly, an electric generator positioned within the housing assembly, an engine positioned within the housing assembly and operatively coupled to the electric generator, a muffler assembly positioned within the housing assembly, and a dividing plate positioned between the engine and the muffler assembly. Exemplary embodiments include an engine fan positioned within the housing and driven by the engine with an engine fane inlet opening formed radially around the engine fan.

Abstract: An electric generator system may include a housing assembly that forms an inlet vent opening and an outlet vent opening, an electric generator, an engine, and at least one fan positioned within the housing assembly, an electrical component, and an electrical component fan that is positioned proximate to the inlet vent opening and configured to draw air from externally of the housing assembly through the inlet vent opening and direct air to the electrical component during operation of the electric generator system. The at least one fan may be positioned generally opposite of the electrical component fan relative to the electrical component to draw air across the electrical component during operation of the electric generator system.

Abstract: A wirelessly electrically-coupled deployable apparatus comprising a deployable structure supported on a supporting structure for motion between a stowed position and a deployed position, an electrically-powered device carried by the deployable structure, a wireless electrical power receiving circuit carried by the deployable structure and connected between the device and a wireless electrical power receiver, and a wireless electrical power transmitting circuit carried by the supporting structure and connected between an electrical power supply and a wireless electrical power transmitter. The wireless electrical power transmitter is carried by the supporting structure, and the wireless electrical power receiver is carried by the deployable structure, in respective positions where wireless electrical power transfer between the wireless electrical power transmitter and receiver powers the device via the receiving circuit when the deployable structure is in its deployed position.

Abstract: A folding bed system includes a bed frame having a head section, a center section, and a foot section. The center section is connected to first and second slide mechanisms, and the head section is connected to first and second guide mechanisms. The slide and guide mechanisms are connectable to opposed walls of a structure. In some embodiments, a hinge assembly for a folding structure includes a center post securable to the center section, and a connecting bracket movably coupled with the center post that is vertically displaceable on the center post between a down position and an up position. A forward bracket is secured at one end to the connecting bracket and is securable at an opposite end to the head section, and an aft bracket is secured at one end to the connecting bracket and is securable at an opposite end to the foot section.

Abstract: A tongue jack includes a drive screw and a lifting assembly coupled with the drive screw. A first bevel gear is secured to the drive screw with a rotation axis aligned with a rotation axis of the drive screw. A second bevel gear engages the first bevel gear with a rotation axis perpendicular to the rotation axis of the first bevel gear. A drive head is connected to the second bevel gear, and a coupler is selectively engageable with and disengageable from the drive head. A handle assembly may be connected to the coupler that is rotatable about the rotation axis of the second bevel gear, where the handle assembly includes a crank handle spaced from and parallel to the rotation axis of the second bevel gear.

Abstract: An electric generator system may include a housing assembly that forms an inlet vent opening and an outlet vent opening, an electric generator, an engine, and at least one fan positioned within the housing assembly, an electrical component, and an electrical component fan that is positioned proximate to the inlet vent opening and configured to draw air from externally of the housing assembly through the inlet vent opening and direct air to the electrical component during operation of the electric generator system. The at least one fan may be positioned generally opposite of the electrical component fan relative to the electrical component to draw air across the electrical component during operation of the electric generator system.

Abstract: A fifth wheel pin box includes a torsion axle having an outer tube connected to a towed vehicle mounting bracket and an inner bar connected by pivot arms to a coupler plate bearing a coupler pin. The pin box may be connected between a towed vehicle and a tow vehicle in an orientation in which both chucking loads and bounce loads cause the inner bar to rotate with respect to the outer tube. Resilient, compressible members disposed between the inner bar and outer tube absorb the loads.

Abstract: A wirelessly electrically-coupled deployable apparatus comprising a deployable structure supported on a supporting structure for motion between a stowed position and a deployed position, an electrically-powered device carried by the deployable structure, a wireless electrical power receiving circuit carried by the deployable structure and connected between the device and a wireless electrical power receiver, and a wireless electrical power transmitting circuit carried by the supporting structure and connected between an electrical power supply and a wireless electrical power transmitter. The wireless electrical power transmitter is carried by the supporting structure, and the wireless electrical power receiver is carried by the deployable structure, in respective positions where wireless electrical power transfer between the wireless electrical power transmitter and receiver powers the device via the receiving circuit when the deployable structure is in its deployed position.

Abstract: A cable-operated mechanism for actuating a slide-out room includes a column, an endless chain loop disposed with the column, first and second drive blocks engaged with the chain loop, and first through fourth cables attached at first ends thereof to the drive blocks. The cables are attached at second ends thereof to inboard and outboard ends of a slide out room. Operation of the chain loop in a first direction tensions the cables attached to the inboard end of the room and slackens the cables attached to the outboard end. Operation of the chain loop in a second direction has the opposite effect.