Abstract: The present invention provides a slab lift bracket that includes an collar portion with a center, an upper surface, a lower surface, an outer surface, and an inner surface. The slab lift bracket also includes a plurality of protruding members that are distributed around and fixed to the collar portion. The protruding members extend outwardly and downwardly of the collar portion at spaced apart locations, and have a hook shaped free end.

Abstract: A control system for a slide-out room of a recreational vehicle includes a number of room slides which move the slide-out room between retracted and extended positions. If multiple room slides are used, a controller synchronizes the movement of the room slides to prevent damage to the components of the system. The retracted and extended positions of the slide-out room can be reset by the end user. The controller is also capable of detecting faults and communicating faults to the user via LEDs on a control panel. The controller automatically stops the motion of the slide-out room if a fault is detected. The control system includes a lock which is automatically disengaged before motion of the slide-out room. The lock is also automatically engaged when the slide-out room moves to the retracted position.

Abstract: A multi-scanner device having a detection unit and an outlet tester that can be selectively connected together for convenient use and easy storage. Preferably, a plug on the outlet tester is inserted into a non-functional socket located on the detection unit to form a multi-scanner device with a detachable outlet tester.

Abstract: A cable anchor has ball surfaces that permit misalignment between the cable and a stem of the anchor, and a fitting that permits the introduction of a corrosion inhibitor to the interior of the anchor.

Abstract: A current detector and indicator unit are coupled to a shore power cord for monitoring for corrosion-causing galvanic current on the ground wire of the power cord. A current transducer coupled to the ground wire senses current and provides a signal corresponding to the magnitude of the sensed current to a microcontroller. The microcontroller compares the magnitude of the current signal to one or more predetermined thresholds and outputs signals to an indicator unit to display the level of galvanic activity accordingly.

Abstract: A tester is disclosed for testing a wiring state of a live electrical receptacle outlet. The tester comprises a body having a display located thereon and a plug extending from the body. The display is configured to selectively provide a text indicator. When the plug of the tester is received in the electrical outlet, the display indicates the wiring state of the electrical outlet.

Abstract: A multi-scanner device having a detection unit and an outlet tester that can be selectively connected together for convenient use and easy storage. Preferably, a plug on the outlet tester is inserted into a non-functional socket located on the detection unit to form a multi-scanner device with a detachable outlet tester.

Abstract: A hydraulic system for a vehicle, comprising a hydraulic actuation device for moving one or more moveable components of the vehicle. The actuation device comprises a hydraulic pump with an associated drive means, a reservoir for hydraulic fluid as well as one or more hydraulic actuators connected to the pump through hydraulic hoses. The hydraulic actuators act on the one or more moveable components. The pump is designed to supply pressurized hydraulic fluid to the one or more hydraulic actuators. A pressure ripple reduction device for reducing pressure ripples in the hydraulic fluid originating from the hydraulic pump is provided, having an expansion chamber.

Abstract: A slide-out arcs between extended and retracted positions. An outer end of the slide-out is lifted so as to tip the slide-out inwardly when approaching the retracted position. The outer end of the slide-out is lowered so as to tip the slide-out outwardly when approaching the extended position.

Abstract: The present invention provides an improved collapsible step assembly for recreational vehicles. The movable step apparatus comprises a mounting frame, at least one step mounted to the frame through a linkage assembly, and a pivot rod with a longitudinal axis of rotation. In use, the pivot rod is rotatably mounted to the frame and rotates the linkage assembly and the at least one step between an extended position and a retracted position. Rotating the pivot rod in a first direction moves the step to the extended position, and rotating the pivot rod in the opposite direction moves the step to the retracted position. The linkage assembly includes a link which is movable in the direction of the link toward extension of the step to contact a stop of the frame that reacts against a gravitational load acting on the step.

Abstract: A high accuracy medical trailer leveling system capable of detecting at least three level orientations including level along a longitudinal direction, level along a lateral direction at the front of the trailer, and level along a lateral direction at the rear of the trailer. The system also includes sensors that detect a level orientation in the longitudinal direction at the front of the trailer and a level orientation in the longitudinal direction at the rear of the trailer. A touch pad has buttons for controlling the system and a display screen, the display screen being capable of displaying a level condition in a particular location of the trailer and direction. The display screen can display the level orientation of side to side, front; side to side, rear; and front to back, and can also display the angle of inclination. One set of lights on the control pad indicates which jacks to actuate to level the vehicle, and another set of lights indicates which jacks are being actuated.