Abstract: A support system for supporting lights, T.V. monitors and similar devices includes sectional rail structures comprising identical rails interconnected together in end-to-end relation. Rails are also connected to directional coupling members in angular relation therewith. Quick-connect, overcenter toggle connector devices interconnect the rails together in end-to-end relation and also interconnect rails to coupling members in angular relation.

Abstract: A multiple point latching system, for use with single or multi-door enclosures, which utilizes a plurality of combinational cam-pinion latch members which are rotatably mounted to the inside surface of the door and simultaneously driven by an elongated rack which extends between such latches and disconnectedly inter-engages therewith. Each combinational cam-pinion latch includes a plurality of teeth which disconnectedly inter-engage with apertures in the rack to cause simultaneous rotation thereof. A handle which is connected to the door and accessible from the exterior thereof drives one of the latch members which in turn causes movement of the rack and consequent rotation of all other combinational cam-pinion latches. Such latches are rotatably mounted at spaced locations along the free peripheral portions of the enclosure door.

Abstract: A supplementary self-contained cleaning fluid distribution system provides for the selective flushing and cleaning of the waste fluid holding tanks of a recreational vehicle. From an external connection cleaning fluid is directed to grey water or sewage tanks respectively, by means of a tank selector and backflow prevention system. Components of the system include a pair of normally closed solenoid valves and a normally open pressure switch responsive to the delivered pressure of the cleaning fluid. A predetermined reduction of the cleaning fluid supply pressure automatically isolates the vehicle system from the external fluid supply.