Low Profile Tank And Bowl Patents (Class 4/329)
  • Patent number: 10294644
    Abstract: Afforded are: a toilet body including a toilet bowl part, a rim conduit 36, and a rim part; and a functional component mounted on an upper surface part of the toilet body, rearward of the toilet bowl part. The upper surface part includes a cut-out part formed such as to be recessed downward from the other part of the upper surface part. The functional component is disposed on the cut-out part such as to be partially positioned downward with respect to an upper surface of the rim part, and such as to be partially stuck out into the toilet bowl part from upon the cut-out part, and, on a bottom surface of the stuck-out part, the functional component is provided with a conduit forming surface serving as an upper surface of the rim conduit.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 21, 2019
    Assignee: LIXIL CORPORATION
    Inventors: Akiya Saeki, Hiroaki Watanabe, Yukihiro Inoue, Tooru Higashino, Masato Takeda, Akiya Oohira, Takeya Ichiyanagi, Yasuhiro Kondo, Hironao Inoue, Tetsuo Hata
  • Patent number: 9021620
    Abstract: A brace for a wall-mounted toilet, particularly useful for wall-mounted porcelain toilets in hospitals and other health care facilities. The brace a weight receiving structure supported by cantilevered struts that attach the brace to the wall, preferably using the same bolts that attach the toilet to the wall. The weight receiving structure may be seat portion that overlies the rim of the toilet bowl, so that the weight of the user is transmitted from the toilet seat to the seat structure and then to the walls through the struts. Alternately, the weight receiving structure may include an under-bowl support that extends underneath the toilet bowl so that the user's weight is transmitted from the bowl to the wall through the struts. Thus, the cantilevered brace increases the weight-bearing capacity of the wall-mounted toilet. A plastic shroud may be included for enclosing the brace and toilet bowl.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: May 5, 2015
    Assignee: Modular Services Company
    Inventor: James A. Walker
  • Patent number: 9021622
    Abstract: There is provided a flush toilet device capable of being configured in a compact size and supplying a sufficient flow amount of water to a toilet to reliably flush and discharge waste. According to the flush toilet device, a straight pipe portion of a throat which is arranged inside a tank is arranged in a state where a center axis thereof inclines with respect to a front-back direction of the tank when viewed from an upper side.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: May 5, 2015
    Assignee: Toto Ltd.
    Inventors: Hidekazu Kitaura, Ryoko Ishimaru, Tomohiro Iwabata, Yoshiki Ota, Takashi Yoshioka
  • Publication number: 20140109307
    Abstract: There is provided a flush toilet device capable of being configured in a compact size and supplying a sufficient flow amount of water to a toilet to reliably flush and discharge waste. According to the flush toilet device WT, a straight pipe portion 243 of a throat 24 which is arranged inside a tank 11 is arranged in a state where a center axis thereof inclines with respect to a front-back direction of the tank 11 when viewed from an upper side.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 24, 2014
    Applicant: TOTO LTD.
    Inventors: Hidekazu KITAURA, Ryoko ISHIMARU, Tomohiro IWABATA, Yoshiki OTA, Takashi YOSHIOKA
  • Patent number: 8701220
    Abstract: A jet powered toilet flushing system, including: a toilet bowl; a reservoir; a fluid conduit between the reservoir and the toilet bowl; a jet inside the reservoir, the jet having a nozzle directed toward an entrance of the fluid conduit; a fill valve that supplies water to the jet; and a flow diverter in the reservoir, the flow diverter positioned to divert water flow: (a) from the jet nozzle into the entrance of the fluid conduit when the reservoir is full, or (b) from the jet nozzle away from the entrance of the fluid conduit and into the reservoir when the reservoir is empty.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: April 22, 2014
    Assignee: Fluidmaster, Inc.
    Inventors: Matt Vargas, Tom Stout, Anurupa Rao
  • Patent number: 8615822
    Abstract: An air activated toilet flush system, including: a toilet bowl; a reservoir; a fluid conduit between the reservoir and the toilet bowl; a system for supplying water into the reservoir; and a system for supplying air into the reservoir, wherein a supply of air into the reservoir causes fluid to flow from the reservoir through the fluid conduit and into the toilet bowl.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: December 31, 2013
    Assignee: Fluidmaster, Inc.
    Inventors: Matt Vargas, Brian Lamb, Tom Stout, Eric Bennett, Tuan Le
  • Patent number: 6195810
    Abstract: A flushing device for disposing of human waste includes a bowl. A trap section, disposed in a draining path extending from the bowl, has a rear end that pivots between upper and lower positions. A case main body communicates with an external drain pipe and houses the trap section. A driving mechanism moves the trap section between the upper and lower positions. A water supply mechanism supplies water to the bowl. A ring is fitted on the rear end of the trap section. The ring has notches on upper and lower sides such that side edges of the ring have an arcuate shape. The case main body has an arcuate shaped profile that is substantially identical to the arcuate shape of the ring, wherein as the trap section pivots from the upper to lower position, a gap between the arcuate shape of the ring and the upper portion of the rear face inside the case main body is wider than the gap between the arcuate shape of the ring and the lower portion of the rear face inside the case main body.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: March 6, 2001
    Assignee: Matsushita Electric Works Co., Ltd.
    Inventors: Takaya Minamiyama, Yasushi Sato, Masato Suzuki, Katsuyuki Okumura, Takahiro Nakamura, Yoshihiro Nishizaki, Yoshiro Matsushita
  • Patent number: 5906011
    Abstract: A flush toilet for a recreational vehicle has a flush mechanism including a pair of foot pedals, one for opening the bowl outlet closure of the toilet, and the other for opening the flush water valve. Depression of the first foot pedal also depresses the water valve foot pedal, though that pedal can also be operated separately. An actuating cable for the water valve extends through the arm of the bowl closure foot pedal so that, if the water valve foot pedal breaks or is damaged, the water valve can still be opened for rinsing the bowl.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: May 25, 1999
    Assignee: Sanitation Equipment Limited
    Inventor: David Charles Robert Fleming
  • Patent number: 5608923
    Abstract: A toilet has a pump to deliver selected quantities of water from a reservoir to a toilet bowl so as to effect a water savings. In one aspect, both the motor and pump are positioned in the reservoir to deliver water to both the rim and bowl portions. In another aspect, there are conduits connected between the basin, the rim and controls which are provided to deliver water to the rim and bowl either independently, simultaneously or in selective sequences. In alternative embodiments, a refill tube is connected to an intake conduit and the rim of the bowl to effect a water seal, a fail safe valve is connected to the supply conduit, a receptacle with a cleaning fluid and a pump is connected to the bowl and there are at least two receptacles for receiving waste.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 11, 1997
    Assignee: Kohler Co.
    Inventors: Norman J. Jaeckels, Randy O. Mesun
  • Patent number: 5579542
    Abstract: A tank type toilet has a water saving, vacuum-assisted flushing system that incorporates a diverter valve disposed in the tank portion of the toilet. During the flushing of the toilet, pressurized water is discharged from a ballcock valve assembly in the tank and delivered to the diverter valve which creates from the received water a water jet that is used to create a vacuum area within the diverter valve. The vacuum area is communicated with an uppermost interior portion of the bowl trapway to facilitate a main flushing action in the bowl that requires less flushing water. At the same time, the water jet entrains tank water therein, through water inlet openings in the diverter valve body, and delivers the jet and entrained water to the rim flushing passage of the bowl to augment the vacuum-assisted main flushing action.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: December 3, 1996
    Assignee: Eljer Manufacturing, Inc.
    Inventor: Dennis J. Hayman
  • Patent number: 5513395
    Abstract: A toilet having a seat section that includes a bowl with a bottom discharge opening. The toilet also includes a source of flush water for rinsing the bowl and removing waste through the discharge opening into a waste storage tank. A pump provides the flush water through a nozzle which directs the flush water into the bowl. A check valve is associated with discharge nozzle to prevent flush water from inadvertently leaking into the bowl. The check valve is capable of being used with either a manually actuated pump or a power assisted pump and reduces the force required by the pump to maintain the valve open than to initially open it.
    Type: Grant
    Filed: August 23, 1994
    Date of Patent: May 7, 1996
    Assignee: Thetford Corporation
    Inventors: Kevin B. Chlebek, James K. Miller
  • Patent number: 5315719
    Abstract: A water closet flushing apparatus provided with a pressure detector mounted along a water supply pipe, an opening and closing apparatus to open and close a water supply passage provided along the water supply pipe and a control apparatus that uses the pressure detected by the pressure detector to control the opening and closing operation of the opening and closing apparatus so that a predetermined amount of water is supplied to the water closet.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: May 31, 1994
    Assignee: Toto Ltd.
    Inventors: Osamu Tsutsui, Atsuo Makita, Hirofumi Takeuchi, Shinji Shibata, Noboru Shinbara
  • Patent number: 5305475
    Abstract: A toilet has a pump to deliver selected quantities of water from a reservoir to a toilet bowl so as to effect a water savings. In one aspect, both the motor and pump are positioned in the reservoir to deliver water to both the rim and bowl portions. In another aspect, there are conduits connected between the basin, the rim and controls which are provided to deliver water to the rim and bowl either independently, simultaneously or in selective sequences. In alternative embodiments, a refill tube is connected to an intake conduit and the rim of the bowl to effect a water seal, a fail safe valve is connected to the supply conduit, a receptacle with a cleaning fluid and a pump is connected to the bowl and there are at least two receptacles for receiving waste.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: April 26, 1994
    Assignee: Kohler Co.
    Inventors: Norman J. Jaeckels, John A. Fiumefreddo, Michael P. Gray, Anton J. Kolar, Randy O. Mesun, Jeffrey F. Tempas
  • Patent number: 5231706
    Abstract: A sanitary fixture constructed from at least inner (1) and outer (45, 50, 61) shell sections formed from any suitable material such as a plastics material. The inner shell (1) has an upwardly facing concave basin portion (1A) and is supported on a cradle like member (30). The supported inner shell (1) provides structural integrity for the fixture and the remaining components of the fixture are carried essentially by the supported inner shell. The cradle like support (30) has a bottom section (31) for attachment to a supporting base, a top section (33) that engages the undersurface of the basin, and an intermediate section (32) interconnecting the top and bottom sections together.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: August 3, 1993
    Inventor: Desmond M. Kendall
  • Patent number: 5204999
    Abstract: A flush water supply system comprising a passageway valve mounted in a pipeline for supplying flush water to a toilet stool, and a control circuit for controlling the closing and opening of the passageway valve. A constant flow valve is mounted in the pipeline for keeping a predetermined amount of discharge flow, irrespective of water supply pressure.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: April 27, 1993
    Assignee: Toto Ltd.
    Inventors: Atsuo Makita, Hirofumi Takeuchi, Shinji Shibata, Noboru Shimbara
  • Patent number: 5170515
    Abstract: A water closet having a trap drainage exit in a wall above a floor, in which at the time of flushing, a vent space is partitioned in a wall-like manner by water falling from a weir. A rise in the water level of a sump portion of the trap results, and air within the trap is quickly forced toward the drainage exit side by the force of the water flow to cause the interior of the trap drainage to have a decreased pressure so that siphon action easily occurs. When the feed rate of water from a tank slows, to terminate the siphon action, air is promptly introduced into the siphon area from a notch in a partitioning wall, whereby the air introduction is hastened and the siphon effect is terminated quickly.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: December 15, 1992
    Assignee: Toto Ltd.
    Inventors: Yoshio Kai, Toshifumi Yoneda
  • Patent number: 5133089
    Abstract: In a water closet flushing apparatus of the type in which the flushing water from a flushing water supply source is fed through different flushing water feed lines to a bowl portion and a trap discharge passage defined adjacent to the bottom portion of the bowl portion, a water jet injector is provided so as to inject the flushing water jet toward the trap discharge passage, an opening-closing valve is disposed in each of different feed lines, and the operation of the opening-closing valve is controlled by a control unit. The flushing water is flushed into the bowl portion so as to clean the same while the jet of flushing water is injected into the trap discharge passage to cause the same to act as a siphon, whereby waste matter is discharged.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: July 28, 1992
    Assignee: Toto Ltd.
    Inventors: Osamu Tsutsui, Atsuo Makita, Hirofumi Takeuchi, Shinji Shibata, Noboru Shinbara
  • Patent number: 5109550
    Abstract: A flush water supply system comprising a passageway valve mounted in a pipeline for supplying flush water to a toilet stool, and a control circuit for controlling the closing and opening of the passageway valve. A constant flow valve is mounted in the pipeline for keeping a predetermined amount of discharge flow, irrespective of water supply pressure.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: May 5, 1992
    Assignee: Toto Ltd.
    Inventors: Atsuo Makita, Hirofumi Takeuchi, Shinji Shibata, Noboru Shimbara
  • Patent number: 5054133
    Abstract: A low consumption toilet fixture (10) has a bowl (20), a tank (16) having a central exit (43), a waterway passage extending from the tank to the bowl (20) and an angled trap (22) that has a bottom well (24). The downstream end (34) of the trap (22), inlet (42) of the waterway, and well (24) all bisect a central vertical reference plane which divides the toilet into two halves. The angled trap has an intermediate upper section (30) which is laterally offset with respect to the inlet (42) of the waterway (21) and has a height greater than a lower wall (50) of the horizontal leg (44) of the waterway that extends from the central inlet (42). The waterway (22) has an exit opening into the well (24). The exit has an upper groove (49) and notch (51) directing water into the bottom of bowl (20). The well (24) is canted laterally and forwardly downwardly with respect to the central vertical reference plane.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: October 8, 1991
    Assignee: Masco Corporatiopn of Indiana
    Inventors: Daniel A. Pickerrell, Donald C. Schrock, John Inch
  • Patent number: 5010602
    Abstract: A portable toilet having a battery operated flushing assembly that is powered by batteries carried in the toilet. The batteries provide for a "pulsed" flushing action of the flush water and this is achieved by the use of an axial flow pump which is operable to lift small amounts of water small distances to the bowl in a repeatable fashion. This facilitates flushing of the toilet, makes it easier for the user to flush the toilet, and provides for efficient and complete flushing. A selectively operable closure plate prevents leakage of water from the toilet bowl during transport of the toilet.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: April 30, 1991
    Assignee: Thetford Corporation
    Inventors: Charles L. Sargent, John M. Antos, Scott I. Biba
  • Patent number: 4926508
    Abstract: A portable toilet having a battery operated flushing assembly that is powered by batteries carried in the toilet. The batteries provide for a "pulsed" flushing action of the flush water and this is achieved by the use of an axial flow pump which is operable to lift small amounts of water small distances to the bowl in a repeatable fashion. This facilitates flushing of the toilet, makes it easier for the user to flush the toilet, and provides for efficient and complete flushing. A selectively operable closure plate prevents leakage of water from the toilet bowl during transport of the toilet.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: May 22, 1990
    Assignee: Thetford Corporation
    Inventors: Charles L. Sargent, John M. Antos, Scott I. Biba
  • Patent number: 4835797
    Abstract: A low profile siphonic flush closet comprises a bowl having a hollow rim in communication with a flushing water tank. The hollow space within the rim holds additional flushing water, and makes it possible to reduce the tank size and thus the overall size and weight of the toilet. The tank and bowl are preferably a unitary ceramic structure, and the lower boundary of the cavity within the rim declines from the front of the rim toward the tank at the rear.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: June 6, 1989
    Inventor: Cesare Castelli
  • Patent number: 4536901
    Abstract: An insulating liner for a water closet tank that has a restricted top opening is disclosed. In one embodiment, the liner is generally rectangular in horizontal cross section so as to define two opposed sets of liner side walls, and one set of the liner side walls converges inwardly and upwardly from a bottom wall of the liner. The liner is formed of a flexible and resilient material so that the liner can be collapsed for insertion into the tank through the restricted tank top opening, and then can be released to resiliently return to its normal configuration where it bears against the interior of the tank side walls.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: August 27, 1985
    Assignee: Kohler Co.
    Inventors: Robert A. Jones, Jack R. Reichert
  • Patent number: 4433446
    Abstract: A flush valve connectable to a wall of a toilet tank is disclosed. In one embodiment, there is a non-circular outlet formed in the bottom wall of the tank. There is also a resilient seal bearing against an upper surface of the bottom wall, the seal surrounding the outlet and having a central bore aligned therewith. A flush valve is provided having a housing that extends through the seal bore and outlet. The housing also has an outwardly extending flange above the seal to trap the seal against the bottom wall, and a radially outwardly extending projection below the bottom wall. The housing is rotatable between a first position in which the projection can pass vertically through the outlet, and a second position where the projection can catch under the bottom wall.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: February 28, 1984
    Assignee: Kohler Co.
    Inventor: Ronald N. Grimstad
  • Patent number: 4176413
    Abstract: An integral, unitary plastic tank and rim flush for a toilet are disclosed, along with the apparatus and method of manufacture. The tank includes a bottom wall and sidewalls, one of which is integral with an essentially tubular water passageway. The rim includes an oval-shaped, hollow duct which is integral with the passageway and includes a plurality of spaced openings in a bottom wall surface to distribute water around the periphery of a toilet bowl. In the method of making the product, an elongated thermoplastic parison is positioned between a pair of blow mold sections. Next, the sections are closed, enclosing respective parison portions within a tank cavity, a passageway cavity and a rim cavity. Blow fluid under pressure is introduced into the parison portion within the tank cavity, resulting in the various cavity-enclosed parison portions being blown to their final shape. After cooling, the article is removed from the mold, trimmed and drilled to form the final product.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: December 4, 1979
    Assignee: Trayco, Inc.
    Inventors: Thomas M. Whitney, Samuel C. Crosby
  • Patent number: 4174546
    Abstract: A water closet, comprising a floor, a movable stool disposed above the floor and mounted for vertical displacement above the floor and a drive apparatus connected to the stool for moving the stool to a selected height above the floor. The drive apparatus may include a drum connected to the stool and vertically movable in a hole in the floor. The stool may further be provided with a seat having two facing arcuate portions slidable on the stool and a pair of base rods connected to each arcuate portion extending at an angle downwardly toward the floor and through respective guides so as to adjust the spacing between the arcuate portions and resulting width of the seat with the vertical movement of the stool above the floor.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: November 20, 1979
    Inventor: Toshiro Ohtake
  • Patent number: 4162548
    Abstract: A water closet shell comprising a basin component formed in one piece of molded plastics material and a cistern component likewise formed and when assembled defines a water closet unit having a flushing rim section. The flushing rim section is defined by mating an upwardly projecting ridge from the basin with a downwardly projecting ridge from the flushing rim.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: July 31, 1979
    Assignee: Celanese Corporation
    Inventors: Frederick W. H. Groombridge, Ronald N. Butler
  • Patent number: 4145772
    Abstract: An essentially all-plastic toilet includes a plastic bowl, trap, waterway, tank and rim flush retained within an outer plastic housing. Polyurethane foam fills the space between the outer housing and the internal components to provide a rigid and strong, yet light weight structure.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: March 27, 1979
    Assignee: Trayco, Inc.
    Inventors: Thomas M. Whitney, Samuel C. Crosby
  • Patent number: 4130907
    Abstract: A squat-type water closet self-supporting in environment of installation, especially in a poured or pre-cast slab-type floor, without need of boxing, is provided by a bowl casting having a horizontal cast flange for anchored support on a rough slab or other environmental structure, and a flush rim casting gasketed to a seat on and defining with the bowl top margin a flushing water passage and peripheral bowl-flushing slot; the rim opening being level with floor and defining the visible closet opening; a vitreous coat and/or full porcelain enamel being applied to wetted and visible surfaces; the two members being shaped for casting without coring; and flashing-securing means being optional.
    Type: Grant
    Filed: August 23, 1977
    Date of Patent: December 26, 1978
    Assignee: Josam Manufacturing Co.
    Inventors: George J. Flegel, Roger L. Mielbeck, Patrick J. Pizarek