Float Type Patents (Class 4/395)
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Patent number: 11898337Abstract: The present disclosure discloses an effort-saving flap-type drain valve, comprising a base with a drain port, a flapper capable of hermetically covering and connecting to the drain port, an actuator connected to the flapper, and a connecting rod rotationally connected to the base and the flapper at two ends respectively, wherein the actuator is capable of causing the flapper to rotate relative to the connecting rod, and the actuator is capable of simultaneously causing the flapper to rotate about a first rotation pivot formed at a position where the flapper is in contact with the base to initially open the drain port; and wherein the actuator is capable of causing the flapper and the connecting rod to rotate together about a second rotation pivot formed at a rotational connection between the connecting rod and the base to further open the drain port.Type: GrantFiled: July 17, 2020Date of Patent: February 13, 2024Assignee: XIAMEN R&T PLUMBING TECHNOLOGY CO., LTD.Inventors: Shunxing Zhou, Ruiliang Chen, Rongyu Zhang, Xingdong Wang
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Patent number: 11668082Abstract: A flapper kit comprises a flapper body, a pair of mounting legs disposed rearwardly of the flapper body and a unitary mounting bar, the mounting bar used in combination with a flush valve overfill portion, the collective elements forming an assembly.Type: GrantFiled: August 4, 2021Date of Patent: June 6, 2023Assignee: Lavelle Industries, Inc.Inventors: Kevin J. Guthrie, Michael A. Dean
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Publication number: 20150082530Abstract: A flush water volume regulator is provided, capable of canceling the buoyancy force acting on a water reservoir, wherein flush water in the water reservoir can be circulated with flush water in a flush water tank outside the water reservoir. The flush water volume regulator of the present invention has a water reservoir capable of holding a predetermined amount of flush water, having a water reservoir in which an opening is formed through which flush water inside water reservoir and flush water outside water reservoir can flow, and a float prevention means for causing a force to act on water reservoir in the opposite direction to the buoyancy force produced by flush water on water reservoir in flush water tank when water supply apparatus is supplying water into flush water tank.Type: ApplicationFiled: September 8, 2014Publication date: March 26, 2015Applicant: TOTO LTD.Inventors: Koki SHINOHARA, Hideki TANIMOTO
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Publication number: 20150074894Abstract: Controls for use in association with the main tank of a toilet include a container which is disposed in the main tank and holds a body of water. A float is movable in the container to expel water from the container and effect operation of an inlet valve from a closed condition to an open condition. Water flows into an inlet compartment and into the main tank when the inlet valve is in the open condition. Water flows into an outlet compartment after a predetermined quantity of water has accumulated in the inlet compartment. Water flows from the outlet compartment into the container.Type: ApplicationFiled: September 3, 2014Publication date: March 19, 2015Inventor: Jonathan S. Kim
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Patent number: 8667619Abstract: A water saving device for a toilet adapted for mounting on an overflow tube above a flapper valve. The device uses a mainframe connected to the overflow tube to position a highchair that is pivotally mounted to the mainframe. A water cup is mounted to the highchair for weight and a vertical cam descends from the highchair to contact and close the flapper valve.Type: GrantFiled: January 13, 2011Date of Patent: March 11, 2014Inventors: Terrance Monty Roberts, Brad Waldack
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Publication number: 20130283514Abstract: A toilet tank flush valve structure includes a valve base. A float assembly is movable relative to the valve base between a sealing position and a flushing position, the float assembly being adjustable in buoyancy. An overflow tube is attached to the float assembly and extends upward from a lower end in fluid communication with the water outflow passage of the valve base to an upper end in fluid communication with the interior space of the toilet tank. The upper end of the overflow tube is adjustable relative to the float assembly independently of the buoyancy of the float assembly. A guide member extends upward from the valve base for guiding movement of the float assembly relative to the valve base. A stop member is mounted on the guide member at a location above the float assembly for limiting upward travel of the float assembly from its sealing position.Type: ApplicationFiled: April 25, 2012Publication date: October 31, 2013Inventor: Douglas P. Hand
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Publication number: 20130227774Abstract: The present invention discloses an inlet structure of water-storing keg float, comprises an inlet, an outlet pipe and a water-storing keg float with a storage tank, and the inlet is provided with a channel passing through the outlet pipe, and the channel is provided with a water-storing cavity and a guide hole, and the guide hole is communicated with the water-storing cavity and the outside wall of the outlet pipe. Because water-storing cavity is present, part of water from the inlet can be stored in the water-storing cavity because of gravity, and this part of water fully enters the storage tank of the keg float through the guide hole, and the keg float can be balanced effectively under different water pressure conditions, and the stability of the keg float is enhanced.Type: ApplicationFiled: November 7, 2011Publication date: September 5, 2013Inventors: Feiyu Li, Dongsheng Yao, Yuzhi Liu
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Publication number: 20130167294Abstract: A toilet flushing device including a sliding conduct extending upwardly and rising above the maximum water level into a cistern; a flexible sleeve; a base support extending from beyond the bottom surface of the cistern; a floating mechanism for moving the sliding conduct upwards along an external guide cylinder; a first fixing mechanism fixing the flexible sleeve to the sliding conduct; a second fixing mechanism fixing the flexible sleeve to the base support; the external guide cylinder having a length sufficient to rise above maximum water level into the cistern; a first stopping mechanism for preventing the sliding conduct from moving upwardly beyond the external guide cylinder; a second stopping mechanism for preventing the sliding conduct from descending beyond the base support; and, a detention system for maintaining the sliding conduct at the bottom of the cistern until the water level reaches a predefined level.Type: ApplicationFiled: January 3, 2012Publication date: July 4, 2013Inventors: José Jaime Preciado-Villanueva, Adolfo Preciado-Chacón
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Publication number: 20130025040Abstract: A low-water-flow toilet having a toilet body, a funnel, a floating ball with a pull wire, water sealing structures, a toilet seat with a rotating shaft, an upper cover, and a plastic fender cover. The water sealing structures include an inner water sealing trap (11) of the toilet body, an outer water sealing trap (12) of the toilet body, a rotating groove arranged on the inner side of the inner water sealing trap (11), and a rotating groove arranged on an outer side of the outer water sealing trap (11). A low-water-flow urinal, having a urine storage bottle (18), a funnel having a water sealing trap (20), a floating ball with a pull wire and a pull ring (21), and an upper cover (23) of the urine storage bottle.Type: ApplicationFiled: September 28, 2012Publication date: January 31, 2013Applicant: Tianjin Wanlu Limited Company of Science and TechnologyInventor: Tianjin Wanlu Limited Company of Science and Technology
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Patent number: 8307594Abstract: Disclosed are a toilet flapper and associated methods. In one representative embodiment, a flapper is provided having an upper side and a sealing side, the sealing side including a sealing surface. A dome protrudes from the sealing side at a middle of the sealing surface. Also, an opening of the dome is positioned in the upper side of the flapper. A float is employed with the flapper.Type: GrantFiled: May 5, 2009Date of Patent: November 13, 2012Assignee: MJSI, Inc.Inventors: Michael J. Schuster, Douglas C. Saunders
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Patent number: 8250681Abstract: A flush valve is provided for discharging fluid from a tank. The flush valve includes a flapper. The flapper includes a frame portion and a hollow float portion rotatably connected to the frame portion. A relative rotational position between the frame portion and the float portion adjusts at least one opening formed between the frame portion and the float portion, and controls an amount of fluid discharged from the tank by variably adjusting buoyancy of the flapper.Type: GrantFiled: May 1, 2008Date of Patent: August 28, 2012Assignee: Fluidmaster, Inc.Inventor: Joseph Han
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Patent number: 8185976Abstract: A flush valve is provided for flushing a toilet bowl. The flush valve includes a center tube having a lug, a flush activation device configured to initially raise the center tube, at least one latching mechanism configured to control movement of the center tube, and at least one rack configured to have movement controlled by the at least one latching mechanism. The at least one latching mechanism controls volume of fluid used during a flush.Type: GrantFiled: July 14, 2008Date of Patent: May 29, 2012Assignee: Fluidmaster, Inc.Inventors: Tuan Le, Bryan Janish, Robert Collin, Bill DeKeyser
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Publication number: 20120047644Abstract: A Toilet Flushing System using Wastewater (10) includes a mounting bracket assembly (24) for mounting within the tank (12) of a conventional water closet. The assembly (24) uses a release float (28) to rise with tank water level and eventually release a main float (26) when the tank water level reaches float release level. The main float (26), when released will cause a shutoff plunger (50) to engage a valve retaining arm (51) to release the valve release arm (56) and thereby shut off fresh water flow into the tank (12), and also activate flapper valve (34) to release flushing water into the toilet. Water is introduced into the tank (12) either via the fill valve (60) or via a drain pipe (10) interconnecting a gray water supply from the drain (16) of an adjacent sink basin (16).Type: ApplicationFiled: August 30, 2010Publication date: March 1, 2012Inventor: Ralph Larson
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Patent number: 7992232Abstract: A device for controlling valve travel of the flush valve of a toilet operated by a rigid linkage rod and for forcibly returning the valve to the closed position. The device may comprise a spring contained within a sleeve. The sleeve has end caps bearing openings for passing the rigid linkage rod entirely through the sleeve and spring. One end cap may be threaded to enable it to compress and immobilize the spring for selectively defeating operation.Type: GrantFiled: October 14, 2009Date of Patent: August 9, 2011Inventor: Paul A. Stone
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Publication number: 20110162135Abstract: Flapper tank ball pendulum comprised a buoyant hollow ball which has a small bottom opening, a handle which is fixed at the top of buoyant hollow ball and a fenestrated cone-shaped shell which is fixed at the bottom of buoyant hollow ball. One can easily fasten its handle onto lever of toilet flushing unit. Flapper tank ball pendulum can be lifted by pushing downwards pushing handle of toilet flushing unit to drain whole tank of toilet water to flush human solid waste and also can be pushed downwards by elevating manually pushing handle of toilet flushing unit to close drainpipe of toilet water tank to stop draining toilet water. Only about one quarter of water in toilet water tank is enough to flush human liquid waste. Human urinate several times a day and defecate only once a day. Flapper tank ball pendulum can replace flapper tank ball to save huge amount of water to solve the shortage of water supplies in big cities in the States.Type: ApplicationFiled: January 5, 2010Publication date: July 7, 2011Inventor: Kun Yuan Tong
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Patent number: 7937782Abstract: A water saving device for a flush toilet comprising a flapper valve limit structure which yieldably limits the upward movement of a toilet tank flapper valve after it has been moved upwardly from its lower closed position towards its upper position thereby reducing the amount of water which will be discharged from the water tank into the toilet bowl during a flushing cycle.Type: GrantFiled: April 16, 2008Date of Patent: May 10, 2011Inventor: Darby J. Vosler
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Publication number: 20110099703Abstract: A toilet flusher for use with a toilet tank that has a fill valve and a bottom drain hole allowing water to flow out controlled by a toilet flush valve, the flusher being installable as the toilet flush valve and including: a longitudinally extendable siphon tube extending longitudinally from a drain hole fitting to a tube inlet with-in a float, such that, when sealingly attached to the tank drain hole by a drain hole fitting, the siphon tube will longitudinally extend upward as it is pulled up by the float floating on water in the tank. The flusher further includes: a float chamber around the tube inlet, the chamber being closed above a top edge of the tube inlet and open below it; floatation means that positions the floating float with the top edge of the tube inlet above the water and the chamber opening below the water.Type: ApplicationFiled: July 1, 2009Publication date: May 5, 2011Inventors: Walter G. Berry, III, David A. Pierson
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Publication number: 20110035868Abstract: A flush regulator for a toilet tank for regulating the outflow therefrom through an outlet, said regulator including a valve without buoyancy, said valve adapted to close said outlet, a connector connected at one end to said valve and a body of buoyancy at another end of said connector above said valve, said valve adapted to close said outlet when the water level in said tank reaches the upper edge of said body of buoyancy and said buoyancy and valve fall to close said outlet wherein said toilet tank includes an overflow pipe wherein said body of buoyancy is connected to the overflow pipe by a plurality of attachment points and wherein the height of the body of buoyancy is varied by attaching the body of buoyancy using one of the plurality of attachment points so as to adjust the height of the body of buoyancy relative to said valve.Type: ApplicationFiled: August 13, 2009Publication date: February 17, 2011Inventors: Lisbeth Pedersen Sylvestre, Nils Uwe Karstensen
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Patent number: 7870868Abstract: An apparatus and method for capturing filtered rainwater during wet weather, storing the filtered rainwater in an elevated storage tank, conveying the filtered rainwater by gravity to a toilet tank and controlling its introduction into the toilet tank. The apparatus preferably comprises an inline filter for installation in a horizontal or sloping section of a rain gutter, a storage tank that is mountable at an elevation higher than the elevation of the toilet tank, water transfer tubing or piping for conveyance of filtered rainwater to the storage tank, water supply tubing or piping for conveyance of stored water to the toilet tank, and a control valve for introducing the stored water into the toilet tank when it is needed. In a preferred embodiment, the components of the apparatus are provided to the consumer in the form of an easily installed kit.Type: GrantFiled: April 26, 2007Date of Patent: January 18, 2011Inventor: Gary K. Ilalaole
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Publication number: 20100024114Abstract: A toilet tank flush valve structure includes a valve base for installation in the outlet hole formed in the floor of a toilet tank and defining a water outflow passage and including a first valve member at the upper end of the water outflow passage. A float assembly is movable relative to the valve base between a sealing position in which a second valve member at a lower end of the float assembly engages the first valve member in sealing relationship and a flushing position in which the second valve member is spaced upwardly from the first valve member. The float assembly includes an outer shell that is open downwards and has a lower edge at which the shell is provided with the second valve member, and a closure member within the outer shell and cooperating with the outer shell to define a float chamber. The closure member is adjustable in position relative to the outer shell, whereby the float chamber is adjustable in volume.Type: ApplicationFiled: October 12, 2009Publication date: February 4, 2010Inventor: Douglas P. Hand
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Publication number: 20090100586Abstract: A non-pressurized fresh water supply flushing system for a marine sanitation device is disclosed. The flushing system includes a fresh water reservoir having a predetermined capacity for holding a predetermined volume of fresh water, a mounting arrangement for mounting the fresh water reservoir to a support surface, a fresh water source associated with the fresh water reservoir for supplying fresh water to this fresh water reservoir and a fluid connection fitting for transferring the predetermined volume of renewable non-pressurized fresh water from the fresh water reservoir to the marine sanitation device upon activation of the marine sanitation device. A method of retrofitting an existing marine sanitation device and a kit for supplying a marine sanitation device with the fresh water supply flushing system of the invention is also disclosed. The fresh water flushing system of the invention may be used with toilets located in a variety of limited space environments.Type: ApplicationFiled: October 23, 2007Publication date: April 23, 2009Inventor: Gene E. Conley
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Publication number: 20090083902Abstract: A toilet flush water supply device for supplying flush water to a flush water tank of a flush toilet is disclosed. The toilet flush water supply device comprises a water supply pipe connected to an external water supply source, a water supply valve for switching between spouting and stopping of flush water supplied from the water supply pipe into the flush water tank, a float for switching between the spouting and stopping of the above water supply valve by a vertical movement thereof linked to fluctuations in the flush water level within the flush water tank, and a float guide disposed on the outer surface of the water supply pipe for guiding the vertical motion of the float.Type: ApplicationFiled: September 25, 2008Publication date: April 2, 2009Applicants: TOTO LTD., VORETO (XIAMEN) PLUMBING TECHNOLOGY CO., LTD.Inventors: Eiji Fukuzawa, Yoshinobu Uchimura, Qing Zhang, Shan Lin, Fu Shan Chen
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Publication number: 20090007324Abstract: The system for opening and/or closing an inlet valve (10) and/or an outlet valve (30) of a liquid container (24), particularly for water toilets, water tanks or the like, comprises an inlet tube (16) with an inlet valve (10) in the upper portion of the container (24) and an outlet tube (20) with an outlet valve (30) in the bottom portion (25) of the container (24), both valves (10, 30) being provided with a valve body. It is characterized by the use of a bistabile inlet valve (10) having a lag-free opening and closing characteristic without any intermediate opening position of the valve body (14; 38,46), the closing stroke of the valve body being assisted by the flow of the liquid.Type: ApplicationFiled: August 7, 2006Publication date: January 8, 2009Applicant: ABERTAX RESEARCH & DEVELOPMENT LTD.Inventors: Joseph Pule, Joseph Cilia, George Schembri, Werner Schmidt
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Patent number: 7415736Abstract: A flush regulator for retrofit use in a toilet tank for regulating the outflow therefrom through an outlet, said regulator including a flap valve without buoyancy, said flap valve adapted to close said outlet, a rod connected at one end to said flap valve and a body of buoyancy at another end of said rod above said flap valve, said flap valve adapted to close said outlet when the water level in said tank reaches the upper edge of said body of buoyancy and said buoyancy and flap valve fall to close said outlet.Type: GrantFiled: July 9, 2004Date of Patent: August 26, 2008Inventors: Lisbeth Pedersen Sylvester, Nils Karstensen
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Patent number: 7185374Abstract: A discharge valve for toilet tanks comprising a flexible ringed hose held by a couple covering a center hole of the toilet tank and a handle connecting to a wire wrapping around an upper part of the flexible ringed hose. The wire connected to the handle bends and submerge the flexible ringed hose into the liquid inside the toilet tank when the handle pulls the wire upwards thereby allowing liquid to enter the flexible ringed hose to flush the toilet bowl. The liquid stops flowing to the toilet bowl when the flexible ringed hose goes back to its original vertical position when the pull on the wire is released and when the level of the liquid inside the tank is below the top opening of the flexible ringed hose.Type: GrantFiled: September 11, 2002Date of Patent: March 6, 2007Inventor: Edmundo Simental Rodriguez
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Patent number: 6810902Abstract: A control circuit for a plumbing device that has a drain line and a water supply line includes a water sensor generating a potential overflow level signal in response to the water level in the plumbing device caused from a restricted drain line, an electrically controlled valve coupled to the drain line, and a controller coupled to the water sensor and the valve. The controller closes the valve in response to the potential overflow level signal.Type: GrantFiled: January 14, 2003Date of Patent: November 2, 2004Inventor: Anthony M. Bootka
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Publication number: 20030213054Abstract: A water-stop plug for adjusting water-draining of a stool comprises a cover, a water-stop washer, a small washer and a plug. The water supply of the water-stop plug for adjusting water-draining of a stool is adjustable according to the requirement of the user so as to save supplied water. By adjusting an air hole on a plug, the supplied water is adjustable.Type: ApplicationFiled: May 20, 2002Publication date: November 20, 2003Inventor: So-Mal Huang
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Patent number: 6381764Abstract: A flush tank has a tube fitted to a downwardly open outlet and having an upper end vertically displaceable in the tank. A float fixed to the tube can switch between a low buoyancy insufficient to hold the tube upper end above the liquid level and a high buoyancy capable of holding the tube upper end above a liquid level in the tank. An actuating rod has an upper end and can engage vertically downward against the float to submerge same and changed it from high buoyancy to low buoyancy so the tube upper end sinks below the liquid level and the liquid in the tank flows through the tube out of the outlet. Stops on the tube and on the rod are engageable for limiting downward displacement of the float and tube to an intermediate position and are disengageable to allow downward displacement of the float and tube.Type: GrantFiled: February 2, 2001Date of Patent: May 7, 2002Assignee: Grohedal GmbH & Co. KGInventor: Ulrich Stahlhut
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Patent number: 6237164Abstract: A toilet supply tank assembly having high performance flush characteristics is designed to maximize water pressure over the flush valve and to minimize fluid turbulence within the tank during a flush cycle. The tank includes a bottom interior surface which tapers downwardly from the outer edges thereof to an fluid escape opening, and may include a cylindrical tank having a frusto-conical bottom portion with the fluid escape opening at the most narrow portion thereof. In order to further reduce turbulence created by water flow within the tank during a flush cycle, a cylindrical flush valve plunger having a frusto-conical stopper portion is provided which has no abrupt transitions. The tank may also include at least three vertical partitions intersecting a common axis which not only provide a cage in which the flush valve plunger can slide up and down, but also prevent the water from swirling and forming an energy robbing vortex.Type: GrantFiled: July 26, 1999Date of Patent: May 29, 2001Inventors: Joseph A. LaFontaine, Brent D. Barnett, Daniel T. LaFontaine
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Patent number: 6199221Abstract: A flush tank having a downwardly open outlet and a valve for filling the tank with a liquid has a flush valve having a tube fitted to the outlet and having an upper end vertically displaceable in the tank. A float fixed to the tube upper tube end has a buoyancy changeable between a high buoyancy capable of holding the tube upper end above a liquid level in the tank and a low buoyancy insufficient to hold the tube upper end above the liquid level. An actuator connected to the float can temporarily change the float from high buoyancy to low buoyancy and thereby sink the tube upper end below the liquid level and cause the is liquid in the tank to flow through the tube out of the outlet. The float has a lower part annularly surrounding the tube and an upper part formed as an upper space having a large upwardly open mouth level with the upper end of the tube and a small opening below its mouth opening into the tube.Type: GrantFiled: February 3, 2000Date of Patent: March 13, 2001Assignee: Dal-Georg Rost & Sohne Sanitaramaturen GmbHInventor: Ulrich Stahlhut
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Patent number: 6151725Abstract: A toilet tank capable of use in combination with a toilet or commode to allow improved flushing operations. The toilet tank comprises a smooth inner surface and a formed bottom portion defining a tank evacuation hole at a base of the conical portion. A flush ball head will seat into a sealed position over the tank evacuation hole, guided by the tank walls. The flush ball may be weighted while the remaining, generally tubular flusher element may be left hollow to facilitate a generally vertical orientation of the entire flusher.Type: GrantFiled: November 10, 1998Date of Patent: November 28, 2000Inventor: Alfonso Di Stefano
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Patent number: 6112763Abstract: There is described a valve arrangement which in one form is an inlet valve (60) or in another form is a dual flush valve (2). The valves may be used in a variety of situations but find particular application in a cistern for providing water to flush a toilet bowl or similar. The valve arrangement (2) comprises a flushing tube (100) or a pair of flushing tubes (14, 18) which can move axially. One end of the tubes (100, 18) is sealed to an outlet (9). The tubes are provided with rings or collars (16, 22) which co-operatively engage with locking edges (48, 50) of floats (40, 44) to control movement of the tubes (100, 14, 18). The floats (40, 44) are mounted off-center or in a position spaced apart from their respective centers of gravity so that they are free to move under the effects of gravity and the effects of lift provided by buoyancy of the floats.Type: GrantFiled: February 2, 1998Date of Patent: September 5, 2000Assignee: Muriel Ann OrbellInventor: Joseph R. Orbell
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Patent number: 5966749Abstract: A pivotable toilet flush valve member (10) is provided, of the type that includes a float (40) with a pair of holes (44, 52) that allow the float to fill with water during a flushing to close early, and where the float can be turned to vary the amount of water used during a flushing, wherein the float is constructed for easy and loose mounting on a frame (12) and for low friction rotation about a primarily vertical axis (60), and where the flush valve member has a simple detent mechanism to hold the float at any rotational position to which it is turned. The frame has an aperture (74) lying along the primarily vertical axis, and the float has a small diameter upwardly extending projection (70) that projects upwardly through the frame aperture and that is held by the walls of the aperture, for low friction turning. The detent mechanism includes an upstanding wall (100) with an upwardly-open vertical groove (102) that has a plurality of teeth on at least one side of the groove.Type: GrantFiled: October 27, 1997Date of Patent: October 19, 1999Assignee: Fluidmaster, Inc.Inventors: Kent Goesling, Oscar R. Dufau, John McKay, Steven E. Maple, Adolf Schoepe
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Patent number: 5848442Abstract: A flush valve is connectable to a vertical wall of a toilet tank. An overflow tubular member is in fluid communication with the flush valve housing and there are clip members mounted on the overflow member for connection with a flapper valve. In a preferred manner, the clip members are mounted on the back side of the overflow member whereby the overflow member acts as a guide, as well as a stop for the flapper valve.Type: GrantFiled: November 5, 1997Date of Patent: December 15, 1998Assignee: Kohler Co.Inventor: Peter W. Denzin
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Patent number: 5494001Abstract: A canine lavatory of modular construction for effective toilet training and continued use. A suitable site is selected and the dog is trained to relieve itself at-the site (typical training for a dog) and the lavatory enclosure is gradually built therearound after the dog has become enured to use the particular site. The lavatory comprises an enclosure with an open, readily accessible entrance having a flushing activating member for automatic activation by the entrance of the dog within the enclosure. The lavatory further comprises flushing and gravity dependent drainage systems. The flushing mechanism is adapted to be activated to fill to level and then to automatically trip flush. The filling and flush trip are adjustably timed according to dog habit and need. With the timed fill and self flush, the water fill system is completely purged of above-ground residual water to prevent freezing in an outdoor facility.Type: GrantFiled: October 19, 1994Date of Patent: February 27, 1996Inventor: Jake Leibowitz
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Patent number: 5333332Abstract: 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) is attached to a lifting device (22) and the open end of the valve (12) is positioned at a height from the cistern floor to facilitate the flush of a smaller quantity of water. The second valve 14 includes a diaphragm 26 positioned slidingly movable in a cylinder and attached to a valve seal (20) at the lower end and to a lifting device (24) at the upper end. The valve seal sealingly engages upon an outlet opening 68 connected to the discharge outlet (28) of the cistern. Activating the second valve seal results in a full volume flush.Type: GrantFiled: March 23, 1992Date of Patent: August 2, 1994Assignee: Vogue Vanity SDN BHDInventor: Mok S. Kam
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Patent number: 5205000Abstract: A dual water-level toilet flushing apparatus (10) that allows a toilet user to easily and quickly select either a partial or a full toilet flush. The partial flush which is normally preset is recommended for flushing liquid waste while the full flush is recommended for flushing solid waste. The apparatus (10) which is easily installed and requires no modification to the toilet water tank (60) consists of three major elements: an overflow tube sleeve (12) that attaches to an overflow tube (64) and that has swivelly attached the back end of a floating inverted pendulum (20). The front of the pendulum is attached, via a pendulum/flapper valve link (24), to the front of a toilet flapper valve (30) having its back swivelly attached to the bottom of the overflow tube (64). To effect a partial flush, the toilet flush handle (68) is depressed and immediately released; to effect a full flush the handle (60) is depressed and held for a few seconds.Type: GrantFiled: March 3, 1992Date of Patent: April 27, 1993Inventors: Frank Z. Xia, Mary Z. Luo, Jack Y. Zhang
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Patent number: 5182819Abstract: A kit that includes a universal flapper and water saver valve stop for the fluid outlet of sanitary flush tanks utilizing a flat, thin, doughnut shaped gasket mounted on alternate supports, wherein the use of one support allows the doughnut shaped gasket to maintain its relatively flat configuration as in standard flapper valves, and the use of the alternate support stretches the doughnut shaped gasket to form a truncated cone, the dimensions of which closely follow those of standard ball valves, and the support structure for the valve stop includes at least two connecting devices for alternately connecting the valve stop to the different types of connecting assemblies found in standard flush tanks.Type: GrantFiled: April 26, 1991Date of Patent: February 2, 1993Inventor: William S. Shaw
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Patent number: 5040247Abstract: A float has a bore which slidably embraces the overflow tube in a toilet tank. The float carries a valve actuator therebelow with structure which permits adjustment of the downward position of the valve actuator. The float and/or valve actuator may be non-round in order to fit closely adjacent the wall of the toilet tank. When the flapper valve at the bottom of the toilet tank is raised to release flush water, the float descends with lowering water leve and the actuator closes the flapper valve before all toilet tank water is released, to thereby conserve water.Type: GrantFiled: May 4, 1990Date of Patent: August 20, 1991Assignee: Mini-Flush CorporationInventor: Charles F. Stevens
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Patent number: 5031250Abstract: The mechanism comprises an inlet valve assembly which admits water into a toilet tank under the control of a valve plug mounted on the end of a vertical axle having a float on its upper end. The valve plug is unseated, to admit water, when the axle is tilted, and the plug is pulled into seated position by the float when the tank is filled. A drainage buoy, in cooperation with a buoy base, allows discharge of water from the tank when the buoy is pulled from the base. Pull chains are used, from a toilet handle, to tilt the axle and pull the buoy. The inlet valve includes a water pressure reducer, and a non-return valve assembly to prevent return of water to the water supply in the event of a loss of water supply pressure.Type: GrantFiled: April 19, 1988Date of Patent: July 16, 1991Inventor: Manuel Garcia De Couto
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Patent number: 4928327Abstract: A device for the reduction of water use in a WC water tank comprises a closing element which opens and closes an outlet opening of the tank and is formed as a buoyant member. The device ensures a various rationing of water discharged from the tank by a ring-shaped suppressing element provided on the closing element which hangs on a chain connected to an operating knob. The suppressing element exerts on the closing element a force which is greater than the force required to maintain the closing element buoyant.Type: GrantFiled: May 11, 1988Date of Patent: May 29, 1990Inventor: Dieter Kuhn
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Patent number: 4872473Abstract: A reversible buoyant and non-buoyant flush tank valve is adapted for use in various types of flush tanks each having different selective valve operating attachments for moving the valve. The valve for use in one type of tank includes an elongated base with opposite end portions with a valve operating attachment selectivity at one end for opening and closing the valve. The other end portion of the valve is selectively attachable to the overflow pipe. The base has opposite sides with a vertically extending hollow frusto-conical cup member on one side. When the valve is used in another type of tank the opposite end portions are removed for connecting a vertical rod valve operating attachment to a first and second oppositely disposed bores to selectively position the cup member upwardly for non-buoyant operation or downwardly for buoyant operation.Type: GrantFiled: March 30, 1988Date of Patent: October 10, 1989Inventor: Michael Agostino
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Patent number: 4841579Abstract: A rigid flapper type valve having a backing plate has been provided with a valve seal in the form of a flexible disc mounted to the bottom of the flapper valve. During sealing the disc will flex to contact the backing plate. A vent hole is provided in the backing plate to vent the area between the disc and plate.Type: GrantFiled: November 20, 1987Date of Patent: June 27, 1989Inventor: Bruce A. Antunez
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Patent number: 4683908Abstract: The float is employed for controlling the valve of a water tank of a toilet for regulating the water level. The float has a solid core with wall structure extending therefrom forming a sealed chamber located on one side of the core. An aperture extends through the core. The volume of the chamber is greater than the volume of the core and the chamber and most of the volume of the float is located on one side of the aperture. The aperture will receive the free end of a rod which is connected to the valve. The float may be rotated around the rod and secured thereto at different angular positions to select the desired water level at which the valve is closed.Type: GrantFiled: November 7, 1986Date of Patent: August 4, 1987Inventor: Daniel J. Brewer
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Patent number: 4656677Abstract: Savings in water consumption are obtained and problems with leakage are avoided by using a water-closet valve which is made of flexible air- and water-tight material and has not only a generally frustoconical seat-engaging portion provided with a pair of circumferential rings or protuberances so as to permit the formation of a double seal but also an interior hollow portion such that towards the end of a flushing operation there is produced within the valve member a partial vacuum which creates a thrust force to perfect the sealing of the valve member within its seat.Type: GrantFiled: October 24, 1985Date of Patent: April 14, 1987Inventor: Leonard A. Miskiewicz
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Patent number: 4601071Abstract: A flushing system for rapidly delivering a given volume of water supplied to an accumulating chamber (5) from an automatically or manually operated valve (6) has a float-controlled discharge valve (19) which is arranged to be opened when said given volume of water has been delivered to the accumulating chamber (5) and the float is located at a corresponding level in said chamber. A supply pipe (13) extends downwardly in the accumulating chamber (5) towards the outlet (3), and a valve housing (19) is slidably arranged, together with the float, on the water supply pipe. In a closing position of the valve housing, the lower edge part of the valve encircles the outlet. In an opening position of the valve housing, with water in the accumulating chamber, the valve housing is lifted from the seating. The lower end of the supply pipe is formed with a valve body (17) arranged, together with the valve housing, to form a pressure chamber (24) having a leakage opening.Type: GrantFiled: May 3, 1985Date of Patent: July 22, 1986Inventor: Bengt A. Persson
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Patent number: 4527296Abstract: A sanitary pan flush cistern which includes structure to permit full-flush or partial flush as required. The cistern is a conventional lidded container housing usual outlet valve on a valve-rod, a press-button in the lid to open the valve and a float-controlled water admission valve. It also houses a pot which in turn houses the outlet valve, and has a normally open doorway furnished with a lid. Linkage connects both the lid and the valve-rod to the press-button so that when the latter is pressed the valve is opened and a full flush passes the outlet valve from the pot and from the outer vessel by way of the normally-open door. When the press-button is lifted the outlet valve opens as before but the door is closed so that the flush is limited to the content of the pot.Type: GrantFiled: November 1, 1983Date of Patent: July 9, 1985Assignee: James Hardie Industries LimitedInventor: Neil R. Musgrove
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Patent number: 4497076Abstract: The invention is an improved, adjustable ball valve closure for use in a dual flush water closet which allows the choice of a regular flush or a water saving flush. The adjustable closure is the type having a buoyancy chamber with a relatively lower drain hole and a relatively higher air bleeder port. It is improved by providing a water inlet port in a position which is above the drain hole when the valve closure is closed and is lower than the air bleeder port when the valve closure is open. The improvement allows a finer, more accurate adjustment of the amount of water discharged for a limited flush.Type: GrantFiled: February 24, 1983Date of Patent: February 5, 1985Inventor: Donald E. Sullivan
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Patent number: 4467482Abstract: A float valve assembly for a water closet that has perfect seating control. The float valve can only move in an up and down direction and cannot move sideways. The float valve assembly has a float member that forms a valve which cooperates with a valve seat for opening and closing the flushing opening of the outlet coupling of the water closet. A pair of laterally spaced wire arm members have their one end pivotally attached to the top of the float member and their other end are pivotally attached to a C-shaped clamp that snaps onto the overflow tube within the water closet. A string-like member has its one end attached to the top of the float member and its opposite end can be attached to the free end of the actuating arm within the water closet.Type: GrantFiled: March 18, 1983Date of Patent: August 28, 1984Inventor: Arthur M. Dyer
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Patent number: 4419773Abstract: 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.Type: GrantFiled: March 12, 1982Date of Patent: December 13, 1983Inventor: Donald E. Sullivan