Pivoted Patents (Class 4/393)
  • Patent number: 11946238
    Abstract: A modular poppet assembly system for a toilet tank flush valve assembly, the modular system comprising a first float portion; and two or more second float portions; wherein, the first float portion is configured to removably attach to each of the two or more second float portions to form two or more poppet assemblies, each of the two or more poppet assemblies comprise a different buoyancy, each of the two or more poppet assemblies allow the toilet tank to fill to substantially a same water volume, and as the poppet assembly buoyancy increases, an increase in flush volume is provided.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: April 2, 2024
    Inventors: Ken Nguyen, Robert Jensen, James Johnson
  • Patent number: 10577786
    Abstract: Some embodiments include a fluid control assembly with a flapper canister, a linkage rotatably coupled to the flapper canister and to a support of a mount. In some embodiments, the flapper canister can be angled with respect to the mount to enable the flapper canister to be coupled to various sizes, types and orientations of flush valves. In some embodiments, by rotating the linkage about pivots coupled to the flapper canister and the support and pivoting or rotating about a motion-enabling element coupling the mount and a support, the flapper canister can be raised, lowered, and/or rotated or pivoted enabling the flapper canister to be sealed against a flush valve orifice. In some embodiments, the flapper canister includes a buoyancy control tube providing fluid coupling between one side of the flapper canister to an opposite side and enabling buoyancy-assist to the position or motion of the flapper canister.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: March 3, 2020
    Assignee: FLUIDMASTER, INC.
    Inventor: Tuan Le
  • Patent number: 10550507
    Abstract: A washing machine drainage structure for a washing machine, in which there is not water between an inner tub and an outer tub in washing and rinsing processes, includes comprises a ball valve and a driving device for controlling opening and closing of the ball valve, a drainage outlet is arranged at a bottom wall of an inner tub, a water inlet end of the ball valve is communicated with the drainage outlet, and the ball valve is driven by the driving device to be closed in the washing and rinsing processes and opened in draining and dehydrating processes. According to the drainage structure, the ball valve is driven by the driving device to be closed or opened so as to close or open the drainage outlet, thereby implementing drainage; and the drainage structure has a simple structure and is convenient to be mounted.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: February 4, 2020
    Assignee: QINGDAO HAIER WASHING MACHINE CO., LTD.
    Inventors: Peishi Lv, Lin Yang, Gangjin Zhang, Yun Tian
  • Patent number: 10533310
    Abstract: A flushometer valve assembly comprises a flushometer valve body including an outlet, an outlet tube including a conduit extending along a longitudinal axis, and a flushometer valve tube-to-body coupling that directly fastens the outlet tube to the flushometer valve body.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: January 14, 2020
    Assignee: MASCO CANADA LIMITED
    Inventors: Xan Vy Du, Frank Stauder, Bryan Fisher, Derek Bernyk
  • Patent number: 9121165
    Abstract: A tank to bowl sponge gasket is provided for use with a flush valve used in the drain hole of a toilet tank, the tank sitting above the throat of a toilet bowl. The flush valve comprises a flange above the bottom wall, a lower externally threaded portion that extends through the drain hole and an internally threaded lock nut which complements the lower threaded portion of the flush valve, a tank seal disposed between the flange and the tank wall, and the gasket is disposed between the lower threaded portion of the flush valve, the lock nut and the tank wall and the throat of the toilet bowl. The gasket has a generally L-shaped upper portion with a circumferential outer surface, a circumferential inner surface and a bottom shelf, a lower portion comprising a circumferential inner surface and an inwardly tapered outer surface, and a circumferential trim line.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 1, 2015
    Assignee: Lavelle Industries, Inc.
    Inventor: Kevin J. Guthrie
  • Publication number: 20140325749
    Abstract: A sealing plug of a toilet tank, which includes a cover body, a plunger, an adjustable lever, an upper cover and a control axis, wherein the a joint part is set on the bottom of the plunger, an air hole is set on the lateral edge of the plunger; the adjustable lever is set passing through the shaft hole, a baffle is set on its bottom end, a through hole is set on the baffle corresponded to the water inlet hole of the plunger; an upper shaft hole and a marked row of the flow amount are set on the top side of the upper cover; the lever body of the control axis is inserted in the upper shaft hole and connected to the adjustable lever; by the structure, the amount of draining water of toilet tank adjusted by the control axis may be conveniently watched.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 6, 2014
    Inventor: So-Mei HUANG
  • Patent number: 8819874
    Abstract: A toilet tank flush valve structure includes a valve base. A float assembly that is adjustable in buoyancy is movable between a sealing position and a flushing position. An overflow tube is attached to the float assembly and extends from a lower end in communication with a water outflow passage of the valve base to an upper end in 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 guides movement of the float assembly. A stop member on the guide member limits upward travel of the float assembly from its sealing position. The stop member is adjustable in position lengthwise of the guide member or by extension of the guide member independently of the buoyancy of the float assembly.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: September 2, 2014
    Inventor: Douglas P. Hand
  • Publication number: 20140215704
    Abstract: The current invention is directed to a cistern assembly for a flush toilet where the cistern assembly includes a cistern housing including a cistern lid and a cistern base, a cistern member pivotally attached within the cistern housing, and an actuator means associated with the cistern member to pivot the cistern member relative to the cistern housing to discharge the stored water. The cistern member has a base wall that forms a chamber to store the water and a passageway to discharge the water from the chamber, the passageway has an internal inlet and a cistern outlet and is shaped to siphon water through the passageway. The internal inlet is positioned substantially on or adjacent to the pivot vertical axis of the cistern member when the cistern member is in one of the pivoted positions.
    Type: Application
    Filed: November 30, 2011
    Publication date: August 7, 2014
    Applicant: Metaflush Pty Ltd.
    Inventor: Antony Lake
  • Publication number: 20140157503
    Abstract: A toilet flush valve connecting device replaces the troublesome chain connector in a toilet tank. The connecting device utilizes a flexible, non-tangle funicular element that attaches the flush handle of a toilet to the discharge valve and assures proper opening and closing of the discharge valve, preventing toilet run-on. The funicular element attaches to the toilet's trip rod and discharge valve and incorporates a novel connector that allows for easy installation and adjustability of the funicular element. Unlike other systems, the device can be retro-fitted into existing toilets by the average person and does not require the assistance of a professional plumber or handyman.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Inventor: Roger B. Geier
  • Patent number: 8690123
    Abstract: Disclosed is a flapper drain valve adjusting structure including at least two installation positions disposed at connecting positions of a flapper body and a swinging link rod, a rotating shaft with its axis perpendicular to an arrangement direction of at least two installation positions and a barrier block installed at the boundary of two adjacent installation positions to prevent the swinging link rod from moving horizontally between the adjacent installation positions, and a claw buckle installed on the swinging link rod and detachably and rotably latched onto the rotating shaft. This structure changes the conventional adjusting method and uses the fixed barrier block to separate the adjacent installation positions without the problem of worrying about the precision and structure and adopts the detachable claw buckle to provide a convenient way of replacing the claw buckle that may be damaged after a long time of use.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: April 8, 2014
    Assignee: Xiamen Runner Industrial Corporation
    Inventor: Yiz-hou Fu
  • Publication number: 20140059756
    Abstract: An improved flapper valve has an elastomeric surrounding flapper valve top. A separate inverted dome-like structure, or cone, which is the ballast, is included for insertion into the flapper valve top. The improved flapper valve further includes a ring-like upper structure and a cap-like bottom structure. The ring-like upper “vent band” structure rotates about the cone relative to an air outlet aperture defined in the cone to control air flow from the cone. The bottom cap-like “adjuster” structure also rotates about the bottom of the cone to control water flow into the cone, also via apertures in both structures. Used together, the upper and bottom structures can minimize water consumption by the toilet. Further, the adjuster structure includes means for discretely changing settings with indicia to indicate to the user what the current setting is and means for maintaining that setting as may be desired or required.
    Type: Application
    Filed: April 18, 2013
    Publication date: March 6, 2014
    Applicant: LAVELLE INDUSTRIES, INC.
    Inventor: Kevin J. Guthrie
  • Patent number: 8590066
    Abstract: An offset outlet flush valve has a valve body, the valve body having an inlet comprising an inlet aperture, an overflow tube socket comprising an overflow tube aperture, and an outlet comprising an outlet aperture. The outlet aperture of the valve body, and the wall that defines it, intersects a portion of the inlet aperture and a portion of the overflow tube aperture and the walls that define them. In this way, a water flow continuum is created between the inlet aperture and the outlet aperture and between the overflow tube aperture and the outlet aperture. A number of alternative embodiments of an overflow tube socket and overflow tube are also provided depending upon OEM or after-market application of the offset outlet flush valve.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: November 26, 2013
    Assignee: Lavelle Industries, Inc.
    Inventors: Alberto C. Torres, David Nichols-Roy, Dennis D. Woods
  • Publication number: 20130269093
    Abstract: Improvements in a toilet flapper that is formed from an assembly of stainless steel components. The flapper includes hinge pivoting arms, the main body and the float as an integrated assembly. The integrated assembly is made from stamped and formed thin stainless steel sheet metal components that provide sufficient buoyance to allow the flapper to open and close. The toilet flapper made from stainless steel for the float to be sufficiently sized to fit within the throat of the drain pipe and also provide sufficient buoyancy for operation. The toilet flapper made from stainless steel for the flapper to remain flat. The seat remains flat because the stainless steel is essentially not affected by chemicals or age. The stainless steel is preferably 300 series and more preferably 304 stainless, but other types will provide similar sealing and structural functionality.
    Type: Application
    Filed: February 13, 2013
    Publication date: October 17, 2013
    Inventor: Dennis P. VLACH
  • Publication number: 20130081201
    Abstract: A tank to bowl sponge gasket is provided for use with a flush valve used in the drain hole of a toilet tank, the tank sitting above the throat of a toilet bowl. The flush valve comprises a flange above the bottom wall, a lower externally threaded portion that extends through the drain hole and an internally threaded lock nut which complements the lower threaded portion of the flush valve, a tank seal disposed between the flange and the tank wall, and the gasket is disposed between the lower threaded portion of the flush valve, the lock nut and the tank wall and the throat of the toilet bowl. The gasket has a generally L-shaped upper portion with a circumferential outer surface, a circumferential inner surface and a bottom shelf, a lower portion comprising a circumferential inner surface and an inwardly tapered outer surface, and a circumferential trim line.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 4, 2013
    Applicant: LAVELLE INDUSTRIES, INC.
    Inventor: LAVELLE INDUSTRIES, INC.
  • Patent number: 8397319
    Abstract: A water-saving flush valve control mechanism is formed as a single unit that can easily be retrofitted onto existing toilet architectures with only one fixed attachment point. Water usage is reduced by providing the user full control in opening and closing the buoyant water valve. Control is achieved by a vertical rigid spine that is attached between the toilet handle arm and the valve. An adjustable lateral extension is included and placed between the toilet handle arm and the vertical rigid spine to ensure that the spine is properly positioned over the valve. Pivotable attachment of the spine to the lateral extension accommodates the arcing pathway of the buoyant valve. A float arm may be added and used to counterbalance the additional weight associated with the flush valve control mechanism.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: March 19, 2013
    Inventor: Michael Peter Senderak
  • Patent number: 8365320
    Abstract: The universal flush valve system comprises an universal system connector accommodating seating thereon of both a flapper style flush valve assembly and a canister style flush valve assembly, as required; a plurality of toilet tank specific connector extensions, each of which are threadedly engageable to a bottom portion of the universal system connector and are used to suitably engage the universal system connector to a water flow port in a toilet tank by extending through the port and receiving a suitable cooperating connection element thereover; a sealing device for sealing the required flush valve assembly against the universal system connector; and a locking mechanism for locking the required flush valve assembly onto a top portion of the universal system connector, seating over the sealing device to produce a water tight engagement therebetween.
    Type: Grant
    Filed: May 9, 2009
    Date of Patent: February 5, 2013
    Inventors: Var E. Lordahl, Scott H. Koepsel
  • Patent number: 8307594
    Abstract: 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: Grant
    Filed: May 5, 2009
    Date of Patent: November 13, 2012
    Assignee: MJSI, Inc.
    Inventors: Michael J. Schuster, Douglas C. Saunders
  • Patent number: 8230532
    Abstract: The device of the present invention comprises a limiting face configured to limit a movement of a stop arm of a toilet flush system actuator unit, that may be mounted to a toilet flush valve body by at least one retention piece. A fulcrum piece may also be provided, the fulcrum piece including a fulcrum hole adaptably sized to receive a fulcrum pin of a toilet flush system actuator unit, such that when the device is installed on a broken toilet flush valve the device will substitute, or provide support, for the support arms with fulcrum holes and stop tab for the toilet tilt valve.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: July 31, 2012
    Inventors: Win Htay, Michael Lin
  • Patent number: 8196898
    Abstract: The present invention relates to a water-stop plug of the flush valve including a connecting sheet, a fixing component and a casing body. The connecting sheet includes a ring part and a pair of hook-hanging parts, and users are capable of choosing the ring part or the pair of hook-hanging parts to fix the water-stop plug to the overflow tube according to the original overflow tube structure, and thereby being able to replace different types of water-stop plugs of flush valves.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: June 12, 2012
    Inventor: Somei Huang
  • Patent number: 8122526
    Abstract: A toilet flush flapper valve includes a flapper and a ballast with a vent hole for enabling air to escape from the ballast, the ballast is rotatably fixed to the flapper for enabling positioning of the vent hole for controlling buoyancy of the ballast in order to control closing time of said flapper.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: February 28, 2012
    Assignee: WDI International, Inc.
    Inventor: Feiyu Li
  • Patent number: 8104103
    Abstract: A flapper flush valve assembly includes a pair of laterally movable mounting arms which may be adjusted to vary a width therebetween to accommodate overflow tubes of different sizes. The flapper valve assembly is coupled to pivot members connected to an overflow tube. Mounting ears on the pivot members may include projections to provide spacing between the rotating mounting arms and adjacent sidewall of a toilet tank, thereby preventing jams.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: January 31, 2012
    Assignee: Fluidmaster, Inc.
    Inventor: Joseph Han
  • Patent number: 8087106
    Abstract: The flapper valve apparatus and method of use provides a flapper valve that is basic and easily installed on the pins of a toilet reservoir overflow tube. The apparatus has sufficient flexibility to allow flexing of the arms and ears for easy installation. The apparatus provides water volume conservation by seating the lower bulb within the valve seat prior to substantial drainage of the reservoir. And, a user can vary the amount of water used in a flush by varying flush handle hold time.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: January 3, 2012
    Inventor: Jack B. Mitchell
  • Patent number: 7891028
    Abstract: An improved water-saving toilet flapper valve (20) that calls for an end to automatic toilet flushing; instead it is operated manually. By manually depressing the toilet flush handle (72) for a desired amount of time, the user regulates the amount of water flushed down the toilet in a single session, thus saving water. A short flush interval or full flush interval can be achieved. This is accomplished by designing the flange body (50) of the toilet flapper valve to house a solid inner core (54) containing a weighted mass (56). This allows the toilet flapper valve to become non-buoyant when submerged underwater in a toilet tank (60). The flange body design is an improvement on prior-art since it acts as a flange to create a positive seal with the valve seat (68) of the toilet tank; thus preventing water leakage. This improved toilet flapper valve design can replace a standard toilet flapper valve without the need of additional tools or costly modifications.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: February 22, 2011
    Inventors: Anthony Camargo, Rocky Caleb Camargo
  • Publication number: 20110023223
    Abstract: An improved water-saving toilet flapper valve (20) that calls for an end to automatic toilet flushing; instead it is operated manually. By manually depressing the toilet flush handle (72) for a desired amount of time, the user regulates the amount of water flushed down the toilet in a single session, thus saving water. A short flush interval or full flush interval can be achieved. This is accomplished by designing the flange body (50) of the toilet flapper valve to house a solid inner core (54) containing a weighted mass (56). This allows the toilet flapper valve to become non-buoyant when submerged underwater in a toilet tank (60). The flange body design is an improvement on prior-art since it acts as a flange to create a positive seal with the valve seat (68) of the toilet tank; thus preventing water leakage. This improved toilet flapper valve design can replace a standard toilet flapper valve without the need of additional tools or costly modifications.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 3, 2011
    Inventors: Anthony Camargo, Rocky Caleb Camargo
  • Publication number: 20100212080
    Abstract: A water stopper for a toilet tank to allow fine-tune adjustment of water flushing amount of the toilet tank includes at least a cap, a dome and an adjustment strut that are incorporated with a stopping gasket and a washer. The dome is a hollow semi-sphere coupled on the bottom of the cap and turnable, and has a water inlet at the bottom thereof and an air vent at one side. It further has features as follow: the cap has a coupling portion on the bottom to fasten to one end of the adjustment strut. The adjustment strut has a stopping disc at other end. The stopping disc has an aperture corresponding to the water inlet of the dome. By turning the dome, the water inlet and the aperture of the stopping disc can be overlapped at a desired ratio, thereby water entering speed into the dome can be fine tuned to control water flushing amount of the toilet tank.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 26, 2010
    Inventor: So Mel Huang
  • Patent number: 7636958
    Abstract: The present invention provides an improved top mounted toilet flush valve and a method for installing the flush valve that can be readily adapted to the tank profile of a wide variety of gravity operated flush toilets. More specifically, in accordance with the objectives of the present invention, there is provided a flush valve having an overflow tube that is adjustable in height and a method for adjusting the overflow tube.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: December 29, 2009
    Assignee: Lavelle Industries, Inc.
    Inventors: David Nichols-Roy, Alberto C. Torres
  • Publication number: 20090276947
    Abstract: 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: Application
    Filed: May 5, 2009
    Publication date: November 12, 2009
    Applicant: MJSI, INC.
    Inventors: Michael J. Schuster, Douglas C. Saunders
  • Publication number: 20090249537
    Abstract: Flush valve assemblies are provided that include a valve body which may have a radiused inlet portion, an upper inlet end having an inlet opening, a lower outlet end having an outlet opening, and a wall extending between the upper inlet end and the lower outlet end and having an interior surface defining a flow path that extends generally longitudinally through the valve body from the inlet opening to the outlet opening and that has a generally circular transverse cross-section. A height measured longitudinally through the valve body is greater than a largest diameter of the transverse cross-section of the flow path so as to enable the valve bodies herein to have an elevated wall and head from a toilet tank floor. The assemblies may include a flapper valve cover detachably connected to the flush valve assembly and having a transverse cross-sectional diameter sufficiently large to cover the inlet opening of the valve body, a pivot mechanism and a flapper bulb.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 8, 2009
    Applicant: AS IP Holdco, L.L.C.
    Inventor: Robert M. Jensen
  • Publication number: 20090144888
    Abstract: A flapper flush valve assembly includes a pair of laterally movable mounting arms which may be adjusted to vary a width therebetween to accommodate overflow tubes of different sizes. The flapper valve assembly is coupled to pivot members connected to an overflow tube. Mounting ears on the pivot members may include projections to provide spacing between the rotating mounting arms and adjacent sidewall of a toilet tank, thereby preventing jams.
    Type: Application
    Filed: November 26, 2008
    Publication date: June 11, 2009
    Inventor: Joseph Han
  • Publication number: 20080244818
    Abstract: A toilet flush flapper valve includes a flapper and a ballast with a vent hole for enabling air to escape from the ballast, the ballast is rotatably fixed to the flapper for enabling positioning of the vent hole for controlling buoyancy of the ballast in order to control closing time of said flapper.
    Type: Application
    Filed: April 1, 2008
    Publication date: October 9, 2008
    Inventor: FEIYU LI
  • Publication number: 20080201833
    Abstract: Toilet flapper valves with multiple volume flush capability which can be quickly and easily installed to replace existing flapper valves in old or new toilets to give such toilets the capability of providing selectable amounts of flushing water.
    Type: Application
    Filed: July 16, 2007
    Publication date: August 28, 2008
    Inventor: Donald Emest Scruggs
  • Patent number: 7415736
    Abstract: 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: Grant
    Filed: July 9, 2004
    Date of Patent: August 26, 2008
    Inventors: Lisbeth Pedersen Sylvester, Nils Karstensen
  • Publication number: 20080134422
    Abstract: A toilet flapper valve has a rigid bulb insert and a surrounding flapper top, the latter being preferably made of an elastomeric material. The flapper valve of the present invention can be used as equipment in toilets of original manufacture and as replacement after-market devices.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 12, 2008
    Inventors: DAVID NICHOLS-ROY, Dennis Woods, Alberto C. Torres
  • Patent number: 7216373
    Abstract: A toilet tank valve seat structure mainly includes a body and an overflow tube located on one side of the body. The overflow tube consists of an inner tube and an outer tube. The inner tube has a gear rack on one side to couple with a hook located on one end of the outer tube so that the outer tube may be moved up and down to adjust the length of the overflow tube. The body has a valve opening covered by a plug. The plug has an anchor notch bordering by two slots on two sides that provide elasticity to make coupling of the anchor notch easier. The structure provides the overflow tube with an adjustable length according to the water level and makes replacement of the plug easier.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: May 15, 2007
    Inventor: So-Mel Huang
  • Patent number: 6829787
    Abstract: A water saving dual flush system of valving assembly for toilet water-closets of the gravity flow type. This system of valving is designed to fit existing hardware in typical water-closets and convert single flush designs to dual flush water saving systems. Comprised of a flapper type bottom valve having a port located at a position above the discharge pipe of a common water-closet. The port edge of the bottom valve being molded to receive and mate to a flanged pipe end and thereby forming a watertight seal between the pipe and the bottom valve. A floatation collar being attached about the outside of the pipe. The upper end of the pipe having a upper valve seat sleeve attached. The upper valve seat sleeve being a slip-fit sleeve with a valve seat formed on the upper end and having a hinge portion incorporated on one side. The upper valve seat sleeve hinge is designed to mate to the upper valve and form together a hinged mount.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: December 14, 2004
    Inventor: Charles G. Pipenburg
  • Patent number: 6804843
    Abstract: A flush tank includes a water entrance to receive water from a water reservoir, a water outlet for discharging the water and controlled by a valve member, and a water inlet disposed in the upper portion to receive waste water from waste water suppliers. A valve device is attached to the lower portion of the tank member, to control and to allow little water to flow into the tank member via the water entrance. Another valve device is attached to the upper portion of the tank member, to control and to allow the waste water to flow into and to fill the tank member via the water inlet.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: October 19, 2004
    Inventor: Sheng Fu Hung
  • Patent number: 6651264
    Abstract: A flush valve is connectable to a blind hole in a vertical wall of a toilet tank. An overflow member is in fluid communication with a flush valve housing. The flush valve housing is wider than it is higher, and fits into a blind hole in the tank wall of similar cross sectional shape. The tank is formed with an attachment ear. A clip mounted on the housing holds the housing against the tank wall, while the non-circular nature of the housing and blind hole prevent relative rotation there between.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: November 25, 2003
    Assignee: Kohler Co.
    Inventors: Daniel N. Halloran, Andrew H. Matznick
  • Publication number: 20030200601
    Abstract: In an automatic shut off system for a water closet, a weight is added to the flapper valve and the chain is lengthened a precise amount to shorten the flush cycle and thereby reduces the amount of water used. This system conserves water by reducing the automatic flush system to release only one gallon of water for a short flush, while still permitting a full three gallon flush by merely holding the handle in the “on” position.
    Type: Application
    Filed: April 29, 2003
    Publication date: October 30, 2003
    Inventor: Darlan Little
  • Patent number: 6571401
    Abstract: A flush and tap toilet water saver system is provided for use in the modem 1.6 gallon toilets that can utilize a flapper valve, a water supply valve which is controlled by a float ball, and a conventional operating handle. A main flapper valve has a bleeder valve installed thereon. The operating handle is rotated normally to open the main flapper valve and simultaneously open the bleeder valve thereby venting air from the main flapper valve and causing it to lose buoyancy and close sooner thus allowing only an abbreviated flush cycle in the toilet tank. When the operating handle is first pushed and then quickly tapped, the tap doses the bleeder valve and cuts off the venting air which causes the flapper valve to maintain full buoyancy and only close when the valve pusher mechanism rotates a valve pusher to force the flapper valve closed just when 1.6 gallons of water is released.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: June 3, 2003
    Inventor: Joseph Jack Comparetti
  • Patent number: 6415456
    Abstract: The adjustable flapper comprises at least an adjustable flapper comprising at least a base to which is adjustably engaged a seal assembly including a seal, the seal depending from the base, and the seal assembly being movable in at least one desired direction relative to the base to accommodate any required distancing of the seal from a free end of the base and the seal being adjustable in angulation relative to the base.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 9, 2002
    Inventors: Var Lordahl, Scott H. Koepsel
  • Patent number: 6401269
    Abstract: 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 flush opening. A flapper arm has a first segment coupled to the yoke along a pivot axis and a second segment extending away from the pivot axis toward the flapper seal. The flapper arm is configured such that it delays seating of the flapper seal when the water in the tank is above a predetermined level and assists seating of the flapper seal when the water is below a designated level.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: June 11, 2002
    Assignee: Kohler Co.
    Inventors: Terrence J. Andersen, David K. Rische
  • Patent number: 6401268
    Abstract: A flapper for a flush valve includes a relatively rigid backing plate and a relatively flexible valve seal. The backing plate includes structure for preventing the seal from being urged into sealing engagement with the backing plate, thereby preventing an air-filled cavity from forming between the seal and the lower surface of the backing plate. The preventing structure may include at least one pair of oppositely spaced ridges extending a first predetermined distance from the lower surface of the backing plate and forming a channel therebetween. The preventing structure may alternately include at least one radially extending channel formed in the backing plate and having a predetermined depth.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: June 11, 2002
    Inventor: Gary R. Higgins
  • Patent number: 6381765
    Abstract: A control mechanism for a toilet is constructed to include a valve seat, an overflow tube, and a tank ball assembly pivoted to the overflow tube and adapted to close/open the valve seat. The tank ball assembly includes a holder base pivoted to the overflow tube, a stopper pivoted to the holder base, an adjustment valve fastened to a bottom side of the stopper, a first lift chain adapted to lift the holder base with the stopper and the adjustment valve from the valve seat for enabling a first amount of flushing water to be discharged out of the valve seat, and a second lift chain adapted to lift the stopper with the adjustment valve from the holder base for enabling a second amount of flushing water to be discharged out of the valve seat.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: May 7, 2002
    Inventor: Li-Ching Liu
  • Publication number: 20010044951
    Abstract: A flapper for a flush valve includes a relatively rigid backing plate and a relatively flexible valve seal. The backing plate includes structure for preventing the seal from being urged into sealing engagement with the backing plate, thereby preventing an air-filled cavity from forming between the seal and the lower surface of the backing plate. The preventing structure may include at least one pair of oppositely spaced ridges extending a first predetermined distance from the lower surface of the backing plate and forming a channel therebetween. The preventing structure may alternately include at least one radially extending channel formed in the backing plate and having a predetermined depth.
    Type: Application
    Filed: January 5, 2001
    Publication date: November 29, 2001
    Inventor: Gary R. Higgins
  • Patent number: 6173457
    Abstract: A flapper-type toilet flush valve having multiple components. A float member component is assembled to a flapper body component. Both components are made of resilient plastic compounds that resist chlorine and chemical bleaches of the type commonly used in tank style toilets. A pair of arms extend from the flapper body component for pivotally mounting the flush valve to corresponding trunnions on an overflow pipe in the toilet tank. An annular recess in the lower surface of the flapper body component has lugs, and corresponding teeth are provided on a top edge of the float member component for mating with the locking lugs. An annular flange extends from the float member component near its top edge to form a first sealing surface. A portion of the lower surface of the flapper body component forms a second sealing surface. A replaceable seal ring is disposed between the first and second sealing surfaces. A mounting adapter, comprising a collar having trunnions is provided for overflow pipes lacking trunnions.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: January 16, 2001
    Inventor: Gary R. Higgins
  • Patent number: 5983412
    Abstract: The toilet tank ball flapper and chain assembly is formed as a unitary article of manufacture, with the chain being integrally molded to lie along the perimeter of the base plate of the flapper and being releasably engaged thereto by a plurality of break away nubs.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: November 16, 1999
    Inventor: Var E. Lordahl
  • Patent number: 5943708
    Abstract: An adjustable tank ball assembly mounted in the water tank of a ballfloat toilet controlled by two trip handles to close/open the water discharging outlet of the valve seat of the water tank of the ballfloat toilet between a full-discharge flushing mode and a water-saving flushing mode, the adjustable tank ball assembly including a ball shell having a bottom center hole, a valve rod coupled to the ball shell and pulled by a first trip handle to lift the ball shell from the valve seat so as to achieve the full-discharge flushing mode, and an actuating plate driven by a second trip handle to force down the valve rod in opening the bottom center hole of the ball shell so as to achieve the water-saving flushing node.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: August 31, 1999
    Inventor: Ching-Tse Chen
  • Patent number: 5924143
    Abstract: The refill device is used with water-saving flush valves which retrofit into existing toilet tanks. These valves normally do not allow enough time to refill the bowl to its proper level. This diminishes their effectiveness and efficiency. The refill device is depicted here on a two-level valve of the inventor's previous patent. It comprises a chamber (40) between a valve (20) and a plate (34) which rotate up off of an outlet (22). As the valve is lifted the chamber contracts. After upper float (28) or lower floats (66) allow the valve to drop, water pulling down on the valve draws water into the chamber. The water pulls a flap (54) shut over a hole (56) in the plate. The plate then supports the chamber which holds the valve slightly open, permitting a predetermined amount of water to flow under it to refill the toilet bowl. Water seeps under the flap at a controlled rate allowing the valve to completely close.
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: July 20, 1999
    Inventor: John Stanley Harrison
  • Patent number: 5903931
    Abstract: 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 and a second open end at a second elevation. Each open end remains in communication with the exit of the water basin. Each open end further has a lid for allowing water to enter the same upon being opened. A pair of flushing assemblies are each connected to the corresponding lid for selectively and independently opening the same.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: May 18, 1999
    Inventor: Robert A. Kolb, Sr.
  • Patent number: 5848442
    Abstract: 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: Grant
    Filed: November 5, 1997
    Date of Patent: December 15, 1998
    Assignee: Kohler Co.
    Inventor: Peter W. Denzin