초록 ▼

A toilet assembly suitable for use on commercial passenger vehicles, including a bowl for receiving waste and waste outlet tubing connecting the bowl to a vacuum source. A flush valve assembly is provided in the outlet tubing and is selectively openable to connect the vacuum source to the bowl for s

A toilet assembly suitable for use on commercial passenger vehicles, including a bowl for receiving waste and waste outlet tubing connecting the bowl to a vacuum source. A flush valve assembly is provided in the outlet tubing and is selectively openable to connect the vacuum source to the bowl for sucking the waste out of the bowl. A disposable spray ring containing a plurality of holes and selectively coupled to a water source is wedged between the bowl and a separate lip member for dispensing water onto the interior surface of the bowl. The flush valve assembly includes a vacuum chamber with top and bottom vacuum inlet ports, a piston connected to a valve blade movable vertically within the chamber and a flush solenoid openable to selectively connect a second vacuum to the top and bottom inlet ports. The assembly is supported by a novel lightweight composite base having triangular composite legs.

대표청구항 ▼

A vacuum-operated flush waste disposal toilet assembly for use on board commercial passenger aircraft, as well as trains, buses and ships, said assembly comprising: a bowl for receiving waste matter; a spray ring for supplying rinse water to said bowl, said spray ring having a disposable hollow tube

A vacuum-operated flush waste disposal toilet assembly for use on board commercial passenger aircraft, as well as trains, buses and ships, said assembly comprising: a bowl for receiving waste matter; a spray ring for supplying rinse water to said bowl, said spray ring having a disposable hollow tube selectively coupled to a source of water and having a plurality of openings for dispensing the water onto the interior surface of said bowl, said disposable spray ring obviating the need for routine chemical cleaning; and a flush valve assembly coupled to a first vacuum source and to said bowl and being selectively openable to flush said bowl, said valve assembly including: a valve blade movable between (i) an open position which opens the path between said first source of vacuum and to said bowl to suck waste out of said bowl, and (ii) a closed position which closes the path between said first source of vacuum and said bowl; a vacuum chamber having first and second vacuum inlet ports substantially at opposite ends of said chamber; a piston vertically movable within said chamber, said piston being attached to said valve blade so that said piston is substantially perpendicular to said valve blade so that translation of said piston in one direction causes said blade to be translated to its open position and translation of said piston in the opposite direction causes said blade to be translated to its closed position; said piston having an internal cavity connected to outside ambient air; a valve between said internal cavity and one side of said piston so that (i) said cavity is open to one side of said chamber when a vacuum is supplied to the opposite side of said chamber, and (ii) said cavity is closed to said chamber when vacuum is supplied to said one side; and a flush solenoid which selectively connects a second source of vacuum to said first and second vacuum ports so that vacuum introduced at said first port causes movement of said piston in said one direction to translate said blade to said open position and vacuum introduced at said second port causes movement of said piston in the opposite direction to translate said blade to said closed position.