U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Celebrity Inventors

Actress Jamie Lee Curtis is a patented inventor - she created a diaper equipped with a premoistened baby wipe. And that's no act!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 4/326 - Plural flush valves


Subclass of Class 4 - Baths, closets, sinks, and spittoons
Definition: Subject matter having more than one flush valve wherein
No. of patents: 71
Last issue date: 07/12/2011


1    
NumberTitleIssue Date
7975324Pressurized dual flush system
A dual flush volume pressurized flush device. A pressurized tank includes a tray for controllably retaining water during a flush event. The tray retains a certain volume of water when a reduced flush is activated, such that the entire volume of the tank is not flush...
07/12/2011
7921481Toilet bowl flush device
A toilet bowl flush device where the quantity of water to be discharged can be accurately quantified is provided where a cistern can be reduced in size. The toilet bowl flush device for discharging flush water in a cistern has a water discharge pipe for toilet bowl ...
04/12/2011
7360259Toilet system
A toilet system includes a bowl having an inner space partitioned by a divider into a front and a rear guide way, which are connected to a front and a rear waste pipe, respectively, and the divider defining a front and a rear slope; a vacuum sucker connected at an u...
04/22/2008
7219375Toilet flushing arrangement
A flushing arrangement (30) including an opened topped housing (32) surrounding the flush valve (12). An opening (40) is provided in a lower part of the housing (32) with a selectively openable gate (44). The arrangement (
05/22/2007
7200877Dual flush water saving toilet system
A dual flush toilet system (120) with a water tank (122), a discharge opening (159), a flush valve (156), and a toilet bowl, is provided with a dual action flush lever (130) for actuating a full or a partial flush operation, an eng...
04/10/2007
7028347Digital electronic volume/flow control sensor toilet
A digital electronic volume/flow control sensor toilet includes a bowl, a water storage tank interconnected with the bowl, and a digital electronic volume/flow control sensor flushing mechanism. The flushing mechanism has components including a volume sensor, a shut...
04/18/2006
6775859Dual flush toilet
A dual flush toilet includes a handle pivotally mounted to a tank. A water outlet fluidly coupled to the tank has an upper edge defining a primary opening. An overflow tube is fluidly coupled to the water outlet. The overflow tube has a break therein such that a fir...
08/17/2004
6704945Dual inlet flush valve system for gravity operated toilets
A flush valve system is constructed of a single housing having at least two inlets fluidly connecting a single outlet. Preferably, the system includes a flush handle assembly having at least two handles mechanically connected to and at least two linkages. Both linka...
03/16/2004
6675397Reduces the amount of water flow in toilets
An apparatus for use within toilet tanks is disclosed. The apparatus would be a modified flush system in which a user would be allowed to flush one of two different flush levers attached to the toilet after use. Each of the flush levers would allow a diff...
01/13/2004
6658673Toilet valve assembly
A modular outflow valve assembly for a toilet tank is disclosed. The modular outflow valve assembly includes a lower outflow tube section configured to be mounted to a toilet tank to pass water out of the toilet tank, wherein the lower outflow tube sectio...
12/09/2003
6651263Toilet tank having a two-stage flushing device
A toilet tank having a two-stage flushing device includes a housing, a first water outlet tube, a second water outlet tube, a first water relief valve, a second water relief valve, and a control unit. Thus, the toilet tank can provide a two-stage flushing...
11/25/2003
6574803Dual volume toilet tank
A system is for flushing material, including a tank for containing flushing fluid, and a tube for transporting flushing fluid from the tank, wherein the tube is located in the tank and includes a first opening located at a low volume level and a second op...
06/10/2003
6571400Toilet bowl water flow adjustment system
A toilet bowl water flow adjustment system for controlling the water volume utilized to flush an existing toilet. The toilet bowl water flow adjustment system includes a divider structure for separating a reservoir into a main portion and an auxiliary por...
06/03/2003
6510563Flush valve adapter for converting a single flush valve system to a dual flush valve system
An adapter for attachment to an existing single flush valve system to convert the single valve system to a dual flush valve system comprises a pair of tubular sections vertically offset from one another and connected by a hollow, enclosed channel. The upp...
01/28/2003
6484327Toilet valve assembly
A dual flush-volume outflow valve assembly for a toilet tank is provided. The outflow valve assembly comprises a base having an opening configured to pass water out of the toilet tank, a lower outflow tube section extending upwardly from the base, and an ...
11/26/2002
6332229Automated flap and cup cleaner water-saving toilet
A gravity drop-toilet uses main water via electronically programmed valves to rinse separate areas of a bowl (71) in sequence via appropriately located and pointing jet orifices (136, 138,140) with about 70% less water than siphon toilets. Electronically ...
12/25/2001
6282731Multiple variable flush water storage tank toilet
A multiple variable flush storage tank toilet has been developed as preferred state-of-the-art to improve the means of reducing the amount of water used in a water flush type toilet. The improved mechanism within the toilet storage tank relies on a partit...
09/04/2001
6178567Multi-flush system and method
The flush system for a toilet provides a discharge pipe upstanding within a flush tank of the toilet. The pipe has a bottom with a bottom opening through which water from the flush tank travels to the toilet bowl of the toilet. The bottom is connected to ...
01/30/2001
6173456Double-cistern water-conserving sanitary water tank
A double-cistern water conservation sanitary water tank comprises two tanks: an external oval tank (9) for evacuating solid waste and an internal round tank (8) for flushing liquid waste mounted within and at a level above a bottom wall of the external ov...
01/16/2001
6041452Water-saving toilet
A toilet water tank is provided with a water discharging seat which is in turn provided in the top thereof with an upright tube, a high water discharging port and a low water discharging port. The high and the low water discharging ports are movably cover...
03/28/2000
5903931Toilet with dual volume flush
A double flush toilet assembly is provided including a toilet water basin defining an interior space and an open top. A bottom face of the basin has an exit for communicating with a toilet bowl. A dual flush tube has a first open end at a first elevation ...
05/18/1999
5887292Dual flush toilet system
A flush control system, for releasing different amounts of water from the holding tank of a toilet into a discharge pipe, includes an auxiliary tank mounted in the toilet holding tank. The auxiliary tank has a volume which is less than the volume of the h...
03/30/1999
5881399Dual flush assembly for water closets
A dual flush mechanism equipped with a two independent flush valves which are each separately controlled by a separate spring loaded button. The flush valves are at different heights in the toilet tank such that actuation of the upper flush valve, by pres...
03/16/1999
5873136Pop-up bowl valve for toilet with two flush modalities
A two flush modality toilet composed of a bowl, a tank connected with the bowl wherein the tank is connected to a water supply, a conventional flush modality for flushing solid waste from the bowl, and a urinal flush modality for flushing liquid only wast...
02/23/1999
5761749Structure of toilet bowl
A toilet structure having lower and upper water tanks, the latter being fixed on the former, a lower outlet on the bottom of the lower water tank for supplying water from the lower tank to a whirling water feed outlet in an associated nightstool, and an u...
06/09/1998
5754986Water-saving device of water tank for flush toilet
A water-saving flush mechanism installed in the water tank of a flush toilet. In addition to providing an inlet control structure with an inlet pipe and a water level float ball, an outlet pipe is provided on an outlet seat. The outlet pipe is in communic...
05/26/1998
5740561Water-saving structure of toilet bowl water tank
A water-saving structure of toilet bowl water tank is disclosed. The toilet bowl water tank is disposed with a float ball valve for controlling the incoming of the water and a flush handle for controlling a water-outgoing valve. This handle is disposed wi...
04/21/1998
5685026Structure of toilet bowl
A toilet structure having lower and upper water tanks, the latter being fixed on the former, a lower outlet on the bottom of the lower water tank for supplying water from the lower tank to a whirling water feed outlet in an associated nightstool, an upper...
11/11/1997
5678252Dual manifold flushing assembly
In one embodiment of the present invention, there is provided an environmentally conscious manifold system for a flush tank that conserves water. The system has a flush tank, a box, a first manifold flushing assembly, a second manifold flushing assembly, ...
10/21/1997
5647067Apparatus for selectively flushing a toilet with either a full or partial tank of water
The apparatus includes control mechanisms which are rotatably secured to the front of the toilet tank for operation and control by a user. The control mechanisms include a first short flush handle adapted for rotation about a horizontal axis and a second ...
07/15/1997
5469585Flushing device of toilet
A toilet flushing device comprises a water tank provided therein with an inlet tube, a float arm, an overflow tube, a first outlet tube, and a second outlet tube which is shorter than the first outlet tube. The first and the second outlet tubes are provid...
11/28/1995
5450634Incremental dual storage water flush toilet
An incremental dual stage water-flush toilet has been developed to serve as a means of reducing to an absolute minimum the amount of water used in a water-flush type toilet. The toilet is comprised of a trapless toilet bowl with spring-loaded air valves o...
09/19/1995
5381561Biflush valve system for conserving water especially for tank-type toilets
A flush system for use in a toilet has a hollow body with an upper valve port and a lower valve port on which are seated an upper valve and a lower valve. The respective valves are attached to a first connecting rod and a second connecting rod. The connec...
01/17/1995
5333332Dual flush system
A selective volume flush apparatus (10) for use in a cistern contains two valves, a first valve (12) with an outlet opening into the discharge outlet of the cistern and an open end configured to sealingly engage a first valve seal (18). The valve seal (18...
08/02/1994
5261129Dual volume flushing system for a flush tank
A dual volume flushing system for flush tank comprises two flapper valves located adjacent to one another. An abutting tongue is provided between the two valves for preventing the lower valve to interfere with the action of the upper valve. A flush handle...
11/16/1993
5175893Dual flush valve assembly
An improved dual flush valve assembly adapted for connection with a toilet tank provides a partial or full flush of water. The assembly comprises two actuating lever arms and three chains depending from the levers for connection with two flap valves. The ...
01/05/1993
5121510Double valve water discharge unit for water casings or tanks
A water optimizing system comprising a single or double water flush assembly and an activation mechanism for maximum and minimum water flush. The flush assembly of the system includes a threaded discharge pipe capable of being raised and lowered selective...
06/16/1992
5111537Toilet apparatus
A toilet apparatus for use in conserving water is provided. The toilet apparatus includes a toilet tank for water, a conventional fluid supply valve, a low volume discharge valve, and a high volume discharge valve. A first embodiment has a housing having ...
05/12/1992
5067180Method and apparatus for conserving water used in the disposal of human body waste
A method and apparatus for reducing water consumption in a toilet or other apparatus for human body waste disposal. Water contained in a primary water tank (10) and a secondary water tank (15) is selectively discharged into waste container (5) by means of...
11/26/1991
5042096Water-saving toilet flusher
A toilet tank 13 is provided with a bottom flapper 5 in valved relationship to a tank outlet 6 attached at an angle from an overflow pipe 8 or directly above the tank outlet 6 at the bottom of the tank 13 and a top flapper 9 in valved relationship to the ...
08/27/1991
1    
 
Sign InRegister
Username  
Password   
forgot password?