Flapper flush valve
OwnerAlbert Leo Schmidtinventor
Life of this patent
Estimating the term…
Abstract
A toilet tank flapper valve providing user selection of either a full or partial dispensing of the liquid contents of the tank. A novel ball-check valve particularly located in the flapper valve either obstructs water from entering or permits it to enter the buoyancy chamber of the flapper valve. When water is permitted to enter, a partial dispensing action results.
Claims11
A flapper valve for use in a tank having a valve operating mechanism and a flapper valve sealable outlet fitting for the liquid in the tank, said flapper valve comprising
- an attachment portion means for connecting the flapper valve to the tank structure in a position that the valve will function,
- a buoyant closure portion means for selectively closing said tank outlet, said closure portion means comprising
- a capped sealing area for engaging said tank outlet fitting,
- a vented buoyant hollow float bulb having a liquid inlet opening, said float bulb means depending downwardly from said closure portion and interior of said sealing area, and
- a valve actuating tab for connecting said valve to said valve operating mechanism,
- an intermediate hinge portion means comprising flexible hinge arm means connected between said attachment portion means and said closure portion means, and
- ball check valve means connected to said float bulb means having an operator selectable ball position from outside said tank through use of said valve operating mechanism connected to said valve actuating tab whereby the venting of air from said float bulb is selectively controlled.
A flapper valve for use in a tank having a flapper valve sealable outlet fitting for the liquid in the tank, said flapper valve comprising
- an attachment portion means for connecting the flapper valve to the tank structure in a position that the valve will function,
- a buoyant closure portion means for selectively closing said tank outlet, said closure portion means comprising,
- a capped sealing area for engaging said tank outlet fitting,
- a vented buoyant hollow float bulb having a liquid inlet opening, said float bulb means depending downwardly from said closure portion and interior of said sealing area, and
- a valve actuating tab for connecting said valve to a valve operating mechanism,
- an intermediate hinge portion means comprising flexible hinge arm means connected between said attachment portion means and said closure portion means, and
- ball check valve means connected to said float bulb means to selectively control by ball position the venting of air from said float bulb, said ball check valve means being positioned beneath said float bulb means and comprising
- valve body means having its chamber open to the interior of said float bulb and having an orifice means formed in one wall thereof with valve seat means surrounding said orifice means, and
- freely movable ball means positioned interior of said float bulb means and said valve body means and adapted to be received in said valve seat means to close said orifice means.
Dependencies are inferred from the claim text.