초록 ▼

A portable toilet having an improved valve arrangement for minimizing abrasion of the holding tank inlet seal. The valve arrangement includes a valve member which moves generally normal to a sealing plane defined by the seal when the valve is opened or closed. A wiper element is disposed adjacent th

A portable toilet having an improved valve arrangement for minimizing abrasion of the holding tank inlet seal. The valve arrangement includes a valve member which moves generally normal to a sealing plane defined by the seal when the valve is opened or closed. A wiper element is disposed adjacent the holding tank inlet and is positioned to exert a wiping action on the sealing surface of the valve member when the valve is operated.

대표청구항 ▼

A toilet of the type having a holding tank for waste material, a bowl communicating with a waste material inlet of said tank, and valve means normally closing said inlet and adapted to be opened to permit waste material to enter the tank from said bowl, wherein said holding tank inlet is provided wi

A toilet of the type having a holding tank for waste material, a bowl communicating with a waste material inlet of said tank, and valve means normally closing said inlet and adapted to be opened to permit waste material to enter the tank from said bowl, wherein said holding tank inlet is provided with a seal defining an annular sealing surface disposed in a sealing plane within said tank, and wherein said valve means comprises: a valve member which is movable between open and closed positions, the valve member being disposed laterally of said inlet in said open position and having a sealing surface adapted to cooperate with said seal in said plane when the valve member is in said closed means supporting said valve member for movement (a) between said open position and an intermediate position in which the valve member is disposed below said inlet preparatory to sealing the same while remaining below said sealing plane, and (b) generally normal to said sealing plane between said intermediate position and said closed position; actuating means coupled to said valve member and operable from externally of the toilet to move the valve member between said open position and said intermediate position and between said intermediate position and said closed position; whereby the valve member moves with respect to said annular sealing surface in directions generally normal to said sealing plane for minimizing abrasion of said seal; and wherein the toilet further comprises a wiper element disposed adjacent said holding tank inlet and positioned to exert a wiping action on said sealing surface of the valve member as the member moves between said open position and said intermediate position.