Class 4/379 - With delay of valve closing

Subclass of Class 4 - Baths, closets, sinks, and spittoons
Definition: Subject matter including means to maintain the valve in
No. of patents: 29
Last issue date: 06/20/2006

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Number	Title	Issue Date
7062801	Two-staged toiled tank bowl control system A two stage toilet tank bowl control system includes a tank ball selectively positioned on the valve seat in the water tank. The tank ball is linked to a lifting lever so as to raise the tank ball from the seat when the lifting lever is rotated in its flushing direc...	06/20/2006
6934976	Toilet flusher with novel valves and controls A tank-type flusher includes an intake valve, i.e., a fill valve, a diaphragm-operated flush valve, and a pressure control mechanism. The intake valve is connected to an external water source and is constructed to close water flow to a water storage tank at about a ...	08/30/2005
6880181	Apparatus for delaying the closing of a toilet flapper valve A pair of lever arms each have an intermediate segment configured for pivotal mounting on a pair of pins that support a corresponding end of a pair of mounting arms of a flapper valve. Each of the lever arms has a forward end configured to engage and provide a lifti...	04/19/2005
6715162	Toilet assembly A toilet includes a toilet bowl assembly having a toilet bowl and a trapway extending from the bottom of the toilet bowl to a sewage line. The toilet bowl has a rim channel provided along an upper perimeter portion thereof. In this toilet, the flush water flows thro...	04/06/2004
6425145	Push button for metered flow By depressing a push button (13), a user deforms a flexible diaphragm (30) and thereby causes an incompressible fluid to flow from a first actuation-chamber segment (42) through openings (48) in a divider wall (46) and into a second chamber segment (44). ...	07/30/2002
6401269	Flapper valve with dual action arm A flapper valve assembly for regulating the passage of water from a toilet tank is provided with a structure to reduce overflow risk. There is a yoke pivotally disposed in the tank and supporting a flapper seal that can be seated on and unseated from the ...	06/11/2002
6370707	Supply-line-sealed flush controller A remote valve (46) controls relief of pressure by way from a pilot-valve chamber (38) whose pressure in turn controls pressure relief pressure chamber (24) by which a pressurized-water source holds a flush valve (12) seated in a flush opening at the base...	04/16/2002
5896593	Piston flush valve A piston flush valve (10) that is installed in a toilet tank (150) and that operates in combination with a ballcock supply valve (152), a trip lever(154) and a refill tube (158). The piston flush valve (10) includes an upper section (12) which is movably ...	04/27/1999
5850639	Tank device for flushing toilet bowl A tank device for flushing a toilet bowl includes a tank body for storing toilet bowl-flushing water. The tank body has an opening at the bottom. One or more support arms are arranged within the tank body and are pivotally mounted to supports. A valve bod...	12/22/1998
5742951	Inlet valve mechanism An interlock mechanism (6-9, 41-47) for a cistern or flush tank (1) has an underwater flush valve (3). The interlock mechanism is linked with the float arm (7, 57) of an inlet valve (5, 50). The interlock mechanism latches the float arm in its raised posi...	04/28/1998
5720053	Apparatus for regulating the quantity of liquid for the flushing of toilet bowls The quantity of water which is discharged from a flushing tank into a toilet bowl is regulated by accelerating or decelerating the descent of a float in a housing which is installed in the tank. The float carries an actuator which is provided with a valvi...	02/24/1998
5673441	Flush valve for toilets A flush valve of a toilet that includes an internal valve piece and an external valve piece. The external valve piece is circular and is installed inside a circular hole which includes a circular flange that engages the internal valve piece. A rear side o...	10/07/1997
5625906	Toilet flush control assembly and methods A gravity flush toilet system includes a fixture with a water sealed trap and a tank having an overflow tube, a flush valve and a fill valve. A control assembly includes a float assembly with a member for pushing the flush valve toward its closed position...	05/06/1997
5553333	Pressurized water closet flushing system An apparatus for flushing a water closet bowl includes a pressurizable reservoir, within which is formed a primary and a secondary pressure zone. Formed at the bottom of the reservoir is an exit aperture through which the pressurized fluid is discharged i...	09/10/1996
5305474	Stoppable flushing mechanism with assured minimal flow Stoppable flushing mechanism having an assured minimum flow of water is provided with an evacuation orifice having a sealing edge adapted to be positioned in a base of a flushing tank, and a substantially axially movable valve capable of being applied to ...	04/26/1994
5301373	Dual flush mechanism A flush mechanism for use with a toilet tank is disclosed. The mechanism permits selection between flushing cycles of two different time durations. The tank has a wall with an outlet therein and a valve member. The flush mechanism has a shaft linked at on...	04/12/1994
5293650	Replacement flush valve An assembly is provided for replacing part or all of a toilet flush valve, which facilitates mounting in a variety of toilets and which enables saving of water. The assembly includes an adapter (30, FIG. 6) for mounting on older types of overflow tubes, w...	03/15/1994
5291620	Push button toilet flush mechanism A device for regulating the discharge of water from a storage tank associated with a toilet bowl for flushing of the toilet bowl, with the operation of the device being through slight pressure on a push button on a rod extending through a front or end wal...	03/08/1994
5289594	Water saver toilet flush control system A toilet flush control system which provides control over the volume of water used in conventional tank-type toilets. The disclosed toilet flush control apparatus and method can be used in existing toilets by easily retrofitting such toilets with said app...	03/01/1994
5179739	Water conserving toilet assembly A toilet flushing apparatus designed to prevent excess loss of water that may happen when the flush valve stays open as the inlet valve is putting water into the tank. The initial flushing lifts the flush valve which acts in conjunction with a counter-wei...	01/19/1993
5170514	Automatic fluid-flow control system A system for controlling liquid flow in bathrooms and the like in response to the presence of the user, which is configuration-adjustable to permit use in preselected sanitary applications. Light emitting means cooperate with a light sensor to detect ligh...	12/15/1992
5088133	Flush mechanism for toilets A flush mechanism for toilets comprises a water supply control device and a water escape control device independently disposed in a flush tank. The mechanism is actuated to flush by raising a plunger to lift a piston of the water escape position from its ...	02/18/1992
4937894	Dual flush toilet A valve assembly for selectively allowing either a partial or a complete draining of a toilet flush tank. A hollow valve member having both a small vent hole and a larger opening therein is selectively pivoted in a first or or a second direction depending...	07/03/1990
4907302	In-field installable closing delay cup An improvement is provided for toilet flush valves on tanks which contain insufficient water to flush properly, which leads to waste of water by double flushing. The improvement enables in-field modification of the flush valve to substantially completely ...	03/13/1990
4305163	Toilet bowl flush system A flush valve mechanism for controlling the flushing action of water thro the water outlet of a flush cistern is provided. The mechanism comprises a water outlet valve liftable off the water outlet to effect the flushing action and a buoyant, valve-engag...	12/15/1981
4193145	Toilet flushing valve mechanism A flushing mechanism is disclosed for use in the tank of a toilet, utilizing a spool valve to accommodate various fluid pressures and to accomplish accurate control of volumetric flow. A housing is provided in the toilet tank, defining an inlet port which...	03/18/1980
4134165	Flush toilet accessory This invention provides an attachment for use with a flush toilet mechanism with the usual stopper and a cylindrical float member horizontally disposed, both being fixed with respect to each other and being swingable about a horizontal axis parallel with ...	01/16/1979
4069521	System and means for using white waters in buildings A system is disclosed wherein white waters, i.e., those soapy waters coming from washing stands, showers, wash basins and the like, are carried, through receiving and filtering devices, down to the tank or container of a toilet either at the same level of...	01/24/1978
4000526	Toilet flushing apparatus Toilet flushing apparatus for use in a toilet assembly having a drain valve seat, includes a flush valve assembly for enabling a partial flushing operation to occur for conserving the use of water. The flushing valve assembly includes a floating flapper v...	01/04/1977

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Class 4/379 - With delay of valve closing