Abstract: A hydraulic circuit includes a hydraulic power unit, a first cylinder pair coupled with the hydraulic power unit, and a second cylinder pair coupled with the hydraulic power unit in parallel with the first cylinder pair. Re-phasing valves coupled with each cylinder of the first and second cylinder pairs are activated when a respective one of the cylinders reaches one of a fully extended or a fully retracted position. The hydraulic circuit incorporates the serially plumbed, re-phasing cylinders for synchronized movement in a system with multiple pairs of cylinders.

Abstract: A power cord slide connector coupling includes a power cord, a low-profile connector coupled with the power cord, a receptacle including a housing with a concave opening sized to receive the low-profile connector in an insert direction, and a plug disposed in the receptacle and configured to electrically engage the low-profile connector. The plug includes contact members that are positioned such that with the low-profile connector in the concave opening, the plug engages the low-profile connector by displacing the low profile connector in a connect direction, perpendicular to the insert direction.

Abstract: A boat lift includes posts and linear actuators, each attached to one of the posts. Each linear actuator includes an extendable and retractable member oriented for extension and retraction substantially parallel to the post. Ends of a first pair of the extendable and retractable members are connected to a first carrier, and ends of a second pair of the extendable and retractable members are connected to a second carrier. A cradle or platform is supported by the first and second carriers. The boat lift may be supported by the ground, by a structure, for example, a dock, a sea wall or a wall of a boat house, or by pontoons.

Abstract: A drive mechanism for a bimini top with a pair of bimini arms supporting the bimini top includes a motor, a worm screw coupled with the motor for rotation by the motor, and a driven gear coupled with the worm screw. One of the pair of bimini arms is connected to the driven gear, and the driven gear is configured for displacement between a stowed position and an extended position by operation of the motor. A pivot hub engages the driven gear via an intermediate hub, and the other of the pair of bimini arms is connected to the pivot hub. The pivot hub and intermediate hub are configured for displacement between a down position and an up position by operation of the motor through the driven gear and the intermediate hub. A first arc spanned by the driven gear between the stowed position and the extended position is greater than a second arc spanned by the pivot hub between the down position and the up position.

Abstract: A multi-conductor flat cable having a width and a thickness includes a plurality of individual conductors arranged side-by-side. The conductors include first and second power conductors, a neutral conductor, and a ground conductor.

Abstract: A stabilizing system includes a plurality of jacks, each operated by a corresponding hydraulic actuator. A hydraulic fluid transfer pump supplies hydraulic fluid to and receives hydraulic fluid from one or more pressure chambers of the actuator. A pilot-operated check or directional valve may be provided in fluid communication with one or more of the pressure chambers and configured to regulate the flow of hydraulic fluid to and from the pressure chamber. A directional control valve may connect the pump output with the jacks via respective pilot-operated directional valves. The directional control valve may include a plurality of switch positions respectively connecting the pump output with pairs of the jacks.

Abstract: A stabilizing system includes a plurality of jacks, each operated by a corresponding hydraulic actuator. A hydraulic fluid transfer pump supplies hydraulic fluid to and receives hydraulic fluid from one or more pressure chambers of the actuator. A pilot-operated check or directional valve may be provided in fluid communication with one or more of the pressure chambers and configured to regulate the flow of hydraulic fluid to and from the pressure chamber. A directional control valve may connect the pump output with the jacks via respective pilot-operated directional valves. The directional control valve may include a plurality of switch positions respectively connecting the pump output with pairs of the jacks.

Abstract: A drive mechanism for a bimini top with a pair of bimini arms supporting the bimini top includes a motor, a worm screw coupled with the motor for rotation by the motor, and a driven gear coupled with the worm screw. One of the pair of bimini arms is connected to the driven gear, and the driven gear is configured for displacement between a stowed position and an extended position by operation of the motor. A pivot hub engages the driven gear via an intermediate hub, and the other of the pair of bimini arms is connected to the pivot hub. The pivot hub and intermediate hub are configured for displacement between a down position and an up position by operation of the motor through the driven gear and the intermediate hub. A first arc spanned by the driven gear between the stowed position and the extended position is greater than a second arc spanned by the pivot hub between the down position and the up position.

Abstract: A boat lift includes posts and linear actuators, each attached to one of the posts. Each linear actuator includes an extendable and retractable member oriented for extension and retraction substantially parallel to the post. Ends of a first pair of the extendable and retractable members are connected to a first carrier, and ends of a second pair of the extendable and retractable members are connected to a second carrier. A cradle or platform is supported by the first and second carriers. The boat lift may be supported by the ground, by a structure, for example, a dock, a sea wall or a wall of a boat house, or by pontoons.

Abstract: A stabilizing system includes a plurality of jacks, each operated by a corresponding hydraulic actuator. A hydraulic fluid transfer pump provides supplies hydraulic fluid to and receives hydraulic fluid from one or more pressure chambers of the actuator. A pilot-operated check or directional valve may be provided in fluid communication with one or more of the pressure chambers and configured to regulate the flow of hydraulic fluid to and from the pressure chamber.

Abstract: A boat lift includes four posts and four linear actuators, each attached to one of the posts. Each linear actuator includes an extendable and retractable member oriented for extension and retraction substantially parallel to the post. Ends of a first pair of the extendable and retractable members are connected to a first carrier and ends of a second pair of the extendable and retractable members are connected to a second carrier. A cradle or platform is supported by the first and second carriers. The boat lift may be supported by the ground, by a structure, for example, a dock, a sea wall or a wall of a boat house, or by pontoons.

Abstract: A stabilizing system includes a plurality of jacks, each operated by a corresponding hydraulic actuator. A hydraulic fluid transfer pump supplies hydraulic fluid to and receives hydraulic fluid from one or more pressure chambers of the actuator. A pilot-operated check or directional valve may be provided in fluid communication with one or more of the pressure chambers and configured to regulate the flow of hydraulic fluid to and from the pressure chamber. A directional control valve may connect the pump output with the jacks via respective pilot-operated directional valves. The directional control valve may include a plurality of switch positions respectively connecting the pump output with pairs of the jacks.

Abstract: A stabilizing system includes a plurality of jacks, each operated by a corresponding hydraulic actuator. A hydraulic fluid transfer pump provides supplies hydraulic fluid to and receives hydraulic fluid from one or more pressure chambers of the actuator. A pilot-operated check or directional valve may be provided in fluid communication with one or more of the pressure chambers and configured to regulate the flow of hydraulic fluid to and from the pressure chamber.

Abstract: A stabilizing system includes a plurality of jacks, each operated by a corresponding hydraulic actuator. A hydraulic fluid transfer pump provides supplies hydraulic fluid to and receives hydraulic fluid from one or more pressure chambers of the actuator. A pilot-operated check or directional valve may be provided in fluid communication with one or more of the pressure chambers and configured to regulate the flow of hydraulic fluid to and from the pressure chamber.

Abstract: A hydraulic system includes an actuator having an extend chamber and a retract chamber, a hydraulic reservoir, a hydraulic pump, and a hydraulic control valve. The control valve is configurable among a first alignment in which it aligns the pump with the extend chamber and the reservoir with the retract chamber, a second alignment in which it aligns the pump with the extend chamber and isolates the retract chambers from the reservoir, and a third alignment in which it aligns the pump with the retract chamber and the reservoir with the extend chamber. A hydraulic accumulator is hydraulically coupled to the retract chamber.

Abstract: A boat lift includes four posts and four linear actuators, each attached to one of the posts. Each linear actuator includes an extendable and retractable member oriented for extension and retraction substantially parallel to the post. Ends of a first pair of the extendable and retractable members are connected to a first carrier and ends of a second pair of the extendable and retractable members are connected to a second carrier. A cradle or platform is supported by the first and second carriers. The boat lift may be supported by the ground, by a structure, for example, a dock, a sea wall or a wall of a boat house, or by pontoons.

Abstract: A stabilizing system includes a plurality of jacks, each operated by a corresponding hydraulic actuator. A hydraulic fluid transfer pump provides supplies hydraulic fluid to and receives hydraulic fluid from one or more pressure chambers of the actuator. A pilot-operated check or directional valve may be provided in fluid communication with one or more of the pressure chambers and configured to regulate the flow of hydraulic fluid to and from the pressure chamber.