Advanced dual-flush valve
AssigneeFluidmaster, Inc.
InventorsJoseph Han, John McKay, Tracy James Haggstrom, Farid Maiwandi
Life of this patent
Estimating the term…
Abstract
A flush valve is adapted to be mounted in the tank of a toilet and includes a selector assembly and a flush valve. The selector assembly is accessible from outside the toilet and provides for initiation of the flushing operation and an alternative choice between a larger flush water volume and a smaller flush water volume. A support structure provides for both axial and radial movement of the selector assembly relative to the flush valve in order to facilitate mounting and aligning of the flush valve assembly. A slide mechanism provides for variation of at least the smaller flush water volume.
Claims21
A flush apparatus adapted for installation in a toilet tank having a flush hole, a tank top, and an interior height measured between the flush hole and tank top, the apparatus comprising:
- a support structure;
- a flush valve carried by the support member and adapted to be mounted relative to the flush hole of the toilet tank;
- a selector assembly carried by the support structure, coupled to the flush valve, and adapted to be mounted relative to the top of the tank;
- the selector assembly being operable exteriorly of the tank top to alternatively select a first flush volume and a second flush volume;
- the support structure having a height adjustment variable to provide the apparatus with a height equal to the vertical dimension of the tank;
- and
- the height adjustment including a support member and a tab forming a bayonet connection with the support member, the tab being movable relative to the support member between a first position wherein the tab has a spaced relationship with the support member to permit adjustment of the height of the support structure, and a second position wherein the tab has a fixed relationship with the support member to fix the height of the flush apparatus at about the interior height of the tank.
A flush apparatus adapted for installation in a toilet tank having a flush hole, a tank top, and an interior height measured between the flush hole and tank top, the apparatus comprising:
- a support structure;
- a flush valve carried by the support member and adapted to be mounted relative to the flush hole of the toilet tank;
- a selector assembly carried by the support structure, coupled to the flush valve, and adapted to be mounted relative to the top of the tank;
- the selector assembly being operable exteriorly of the tank top to alternatively select a first flush volume and a second flush volume;
- the selector assembly including a radial adjustment operable independently of the height adjustment of the support structure for aligning the selector assembly relative to the top of the tank;
- and
- the support structure having a height adjustment variable to provide the apparatus with a height equal to the vertical dimension of the tank.
A flush valve assembly adapted for use in toilet tank having a bottom and a top separated by a particular height, comprising:
- a base structure adapted for mounting relative to the bottom of the tank;
- a top structure coupled to the base structure and adapted for mounting relative to the top of the tank;
- a float assembly having a height and being carried between the base structure and the top structure;
- first means for adjusting the distance separating the base structure and the top structure to provide the flush valve with a height generally equivalent to the particular height of the tank;
- and
- second means for adjusting the height of the float assembly in accordance with the adjustment of the first means.
A toilet flush valve, comprising:
- a shuttle having a first position associated with a first flush volume and a second position associated with a second flush volume less than the first flush volume;
- portions of the shuttle defining a hole;
- a button assembly operable to move the shuttle between the first position associated with the first flush volume and the second position associated with the second flush volume;
- a first button included in the button assembly and operable to move a first cam surface into the hole to move the shuttle to the first position associated with the first flush volume;
- a second button included in the button assembly and operable to move a second cam surface into the hole to move the shuttle to the second position associated with the second flush volume;
- a deflection member included in the portions defining the hole, the deflection member being deflectable to enlarge the hole and prevent binding of the button assembly when the first button and the second button are operated to move the first cam surface and the second cam surface into the hole substantially simultaneously.
A flush apparatus adapted for installation in a toilet tank having a flush hole, a tank top, and an interior height measured between the flush hole and tank top, the apparatus comprising:
- a support structure;
- a flush valve carried by the support member and adapted to be mounted relative to the flush hole of the toilet tank;
- a selector assembly carried by the support structure, coupled to the flush valve, and adapted to be mounted relative to the top of the tank;
- the selector assembly being operable exteriorly of the tank top to alternatively select a first flush volume and a second flush volume;
- the support structure having a height adjustment variable to provide the apparatus with a height equal to the vertical dimension of the tank;
- a support member;
- a tab associated with the support member and being moveable relative to the support member between a first position wherein the tab has a spaced relationship with the support member to permit adjustment of the height of the support structure, and a second position wherein the tab has a fixed relationship with the support member to fix the height of the flush apparatus at about -the interior height of the tank;
- a base structure including the tab;
- a top structure including the support member;
- a receiver included in the top structure, the receiver being radially adjustable to vary the height of the receiver relative to the support structure;
- and
- a button assembly carried by the receiver and having a height axially variable independently of the height of the receiver relative to the support member.
Dependencies are inferred from the claim text.