Abstract: A valve for a toilet includes an inlet and a gate configured to prevent fluid flow through the inlet. The gate includes an at least partially spherical surface and is configured to pivot eccentrically relative to the spherical surface.

Abstract: A valve for a toilet includes an inlet and a gate configured to prevent fluid flow through the inlet. The gate includes an at least partially spherical surface and is configured to pivot eccentrically relative to the spherical surface.

Abstract: Disclosed are trap valve assemblies for controlling flow from a toilet bowl to a trap way. In one form there is a cartridge unit positionable immediately below a toilet bowl discharge outlet. It has a pivotable gate in a form of a spherical segment. The gate has an eccentric pivoting motion so that it can swing from an open position to a blocking/closing position in which it fully contacts a sealing gasket. The spherical segment has a leading edge which is approximately between +40° and ?40° from vertical when the gate is in an open position, to minimize the energy required to close the gate. In another form a ball and socket connection to the gate valve facilitates sealing.

Abstract: Disclosed are trap valve assemblies for controlling flow from a toilet bowl to a trap way. In one form there is a cartridge unit positionable immediately below a toilet bowl discharge outlet. It has a pivotable gate in a form of a spherical segment. The gate has an eccentric pivoting motion so that it can swing from an open position to a blocking/closing position in which it fully contacts a sealing gasket. The spherical segment has a leading edge which is approximately between +40° and ?40° from vertical when the gate is in an open position, to minimize the energy required to close the gate. In another form a ball and socket connection to the gate valve facilitates sealing.

Abstract: Disclosed are valve assemblies for controlling flow from a toilet bowl to a trap way. In one form there is a cartridge unit in which a pivotable gate is mounted. The gate can swing from a blocking/closing position to a position in which it is essentially hidden away in a recess out of the main flow path. The surface of the gate facing the bowl is inwardly dished to further facilitate flow optimization.