Abstract: A vehicle power take off system provides power for a variety of systems including a source of alternating current power for conventional electrical equipment to be powered by the vehicle. In a preferred electrical implementation, the power take off system is energized from the vehicle direct current electrical power system and generates alternating current of the desired voltage using a derectifier and step up transformer. Management of the system is implemented through modularized units which may be connected to communicate with another over a vehicle's controller area network. Load management may be monitored by an existing on board computer.

Abstract: A disconnect switch (30, 30SA) is placed in circuit between a battery bank (12) and a distribution point (30B) for the entire electrical system load except the engine cranking motor (24). This allows the circuit between the battery bank and a cranking motor solenoid (22) that operates the cranking motor to be switch-free. A switch-free circuit allows a continuous cable to connect the battery bank to the cranking motor solenoid, significantly reducing the electrical resistance between the battery bank and the cranking motor solenoid.

Abstract: An access hatch reinforcement module and a method of assembling an access hatch to an existing engine compartment hood of a vehicle. The access hatch reinforcement module includes a wall engagement component for engagement to the hood outer wall of the engine compartment hood. The access hatch reinforcement module further includes a door engagement component for engagement to a hatch door of the access hatch. The wall engagement component and the door engagement component of the access hatch reinforcement module are directly fixedly engaged to one another by temporary fixed engagements. The wall engagement component and the door engagement component are also indirectly engaged to one another through operational door connecting components such as a hinge component.

Abstract: The invention provides a stowable ladder mechanism for an overhead bed or upper berth in a bunk bed. A horizontal linear guide is vertically spaced above a horizontal support surface and associated with a bed or berth. The rungs of the ladder are supported between two vertical uprights, one of which is fixed at one end of the berth and the second of which is coupled to the horizontal linear guide and translates across the horizontal support surface along one side of the bed. The plurality of rungs include swing sections mounted on hinges which hang vertically when the translatable vertical upright is positioned adjacent to the fixed vertical upright. When the translatable upright is positioned away from the fixed upright, the swing sections are supported in a horizontal position.

Abstract: A parking brake lock-in key switch system for a truck or bus brake system is disclosed. The system has two parking brake lock-in valves. One parking brake lock-in valve is installed in the air line piping between the primary air tank and the push pull double check valve and the second parking brake lock-in valve is in the air line piping between the secondary air tank and the push pull double check valve. The parking brake lock-in valves are air operated valves which when closed will lock in actuated parking brakes. The parking brake lock-in valves are operated by a solenoid operated pilot valve which provides air from an air supply to close the lock-in valves when the ignition key is moved to the `off` position. An actuated parking brake will be locked in because new air from the respective tanks will be prevented from flowing to the push pull double check valve and hence the brake chambers. The parking brake lock-in valve does not vent off downstream piping when it closes.