Adjustable tank discharge valve for controlling flush water volume
OwnerDonald E. Sullivaninventor
Life of this patent
Estimating the term…
Abstract
A discharge valve closure of the type which has a bleeder port to permit the conservation of water by causing the closure to shut the discharge valve prior to the draining of all water from the water tank. The discharge valve closure features an adjustment which permits at least a portion of the buoyancy chamber to be pivoted about the axis of the closure to position the bleeder port at a selected angular spacing from its top dead center position. This adjustment allows the tank water level at which the closure shuts off the discharge valve to be adjusted.
Claims15
An improved adjustable discharge valve closure of the type providing a selective water volume flush for the tank of a water closet, said discharge valve closure including a sealing portion and a buoyancy chamber portion attached to a mounting arm member at one end of said member, the other end of said member being pivotally attached to said tank for pivotal movement of the valve closure into and out of sealing engagement with the discharge valve seat, said buoyancy chamber portion, in the closed operable position of the valve closure, including a relatively lower drain hole and a relatively higher bleeder port formed through a wall of the buoyancy chamber portion said bleeder port being connected with gas at atmospheric pressure when said closure is in its closed position;
- wherein the improvement permits manual adjustment of the water volume of a flush and comprises mounting at least the portion of the wall of the buoyancy chamber through which the bleeder port is formed for rotary movement about the center axis of the valve closure, which movement due to the pivotal movement of said mounting arm will vary the distance of said bleeder port from said tank bottom.
Dependencies are inferred from the claim text.