Flush valve structure for a toilet tank
OwnerDouglas P. Handinventor
Life of this patent
Estimating the term…
Abstract
A toilet tank flush valve structure, for use with a toilet tank having a floor formed with an opening, includes a base for installation in the opening formed in the floor of the toilet tank. The base defines a water outflow passage having an upper end at which the passage has an area A1 and a lower end at which the passage has an area A2 and includes a valve seat at the upper end of the water outflow passage. A flush valve is movable relative to the base between a sealing position in which the valve engages the valve seat in sealing relationship and a flushing position in which the valve is spaced upwardly from the valve seat. The area A1 is substantially greater than the area A2.
Claims14
A toilet tank flush valve structure, for use with a toilet tank having a floor formed with an opening, the flush valve structure comprising:
- a base for installation in the opening formed in the floor of the toilet tank, the base defining a water outflow passage having an upper end at which the passage has an area A1 and a lower end at which the passage has an area A2 and including a valve seat at the upper end of the water outflow passage, and
- a flush valve that is movable relative to the base between a sealing position in which the valve engages the valve seat in sealing relationship and a flushing position in which the valve is spaced upwardly from the valve seat,
- and wherein the area A1 is substantially greater than the area A2.
A toilet tank structure comprising:
- a toilet tank having a floor formed with an opening,
- a flush valve base for installation in the opening in the floor of the toilet tank, the floor of the toilet tank being also formed with a valve seat that surrounds the flush valve base and defines an inlet end of a water outflow passage, the inlet end of the water outflow passage having an area A1 and the base having an outlet opening of area A2, and
- a flush valve that is movable relative to the base between a sealing position in which the valve engages the valve seat in sealing relationship and a flushing position in which the valve is spaced upwardly from the valve seat,
- and wherein the area A1 is substantially greater than the area A2.
Dependencies are inferred from the claim text.