Including Flexible Linkage Element In Tank (e.g., Chain Or Cord) Patents (Class 4/412)
  • Patent number: 10794050
    Abstract: A discharge valve operating device includes an electric operation unit including a rotating shaft, a first coupling member and a second coupling member having respective one ends coupled to a discharge valve, a first rotary winding member, and a second rotary winding member. The first rotary winding member and the second rotary winding member include a first holed portion and a second holed portion, respectively, which are provided near portions at respective rotation centers. Each holed portion is engageable and disengageable with the rotating shaft in a rotation direction in accordance with the rotation direction of the rotating shaft in each operation mode.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: October 6, 2020
    Assignee: TOTO LTD.
    Inventors: Koki Shinohara, Hideki Tanimoto, Makoto Abe
  • Patent number: 9677259
    Abstract: A dual valve water discharge system is a system through which the user is able to select the volume of water used when flushing liquid waste and/or solid waste. The system features a drain flap with a flow through hole that restricts the flow of water entering a tank drain. The drain flap is covered by a flow rate control flap that is lifted to expose the flow through hole. The drain flap may be lifted as well, in turn lifting the flow rate control flap and allowing unrestricted flow into the tank drain. The flush volume is selected by lifting a flush handle upward or pressing the flush handle downward. The flush handle is connected to a flush lever which is in turn connected to a first cord and a second cord that are able to lift the drain flap and the flow rate control flap.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: June 13, 2017
    Inventor: John Russell Shucofsky
  • Patent number: 9447569
    Abstract: The present invention relates to an operating device for a flush water tank assembly in a flush toilet as the user can operate operating part toward the one and opposite direction, the rotary direction changing mechanism can change the direction of rotation which is transmitted from the rotating shaft to a rotary wind-up mechanism so that the direction of rotation of the rotary wind-up mechanism can be maintain in a predetermined same direction of rotation. The operating device for the flush water tank assembly includes a drive unit including a rotary wind-up mechanism, a rotary direction changing mechanism for changing the direction of rotation transmitted from the rotating shaft to the rotational wind-up mechanism so that the transmitted direction of rotation can be maintain in accord with a predetermined and fixed direction of rotation, and a limiting mechanism for limiting an angle of rotation of the rotary wind-up mechanism.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 20, 2016
    Assignee: TOTO LTD.
    Inventors: Koki Shinohara, Hideki Tanimoto, Yukinori Kubozono
  • Patent number: 8584268
    Abstract: A dual flush device is disclosed to provide a full flush for removing solid waste and a water-saving partial flush for removing liquid or light solid waste in a toilet. It includes a first flush handle attached to a shaft to raise a lever to open a flapper valve, and a second flush handle that overlaps the first handle and opens the flapper valve through the first handle. A float assembly is disclosed to be used either with the dual flush device or with the original single flush lever assembly to prematurely close an opened flapper valve and reduce water consumption. Using the original flapper valve in a conventional toilet tank, a dual flush function is achieved by any of the three implementation choices: (1) the dual flush device alone; (2) the dual flush device and a float assembly; and (3) a float assembly alone.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: November 19, 2013
    Inventor: James T. Han
  • Patent number: 8060954
    Abstract: The invention relates to a toilet flush actuator mechanism for a toilet tank which has a discharge port surrounded by a valve seat having a central axis, a ball-cock type valve, and a flush valve having a vertical axis. The actuator mechanism consists of a trip lever pivotally mounted to the toilet tank and having a free end over which a boot member is telescopically and captively held. First and second resilient guide members extend laterally from the boot member adjacent the free end, and are parallel, coplanar, and separated by a fixed distance. A linkage member is captively carried in fixed relationship with the upper end of the flush valve and has an open void region through which the free end extends.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: November 22, 2011
    Inventor: Bruce A. Antunez
  • Patent number: 7861330
    Abstract: A toilet tank lever assembly may be mounted in various toilet tanks by selective positioning of a long lever arm relative a short lever arm. One such lever assembly includes a long lever arm which may be mounted at an infinite degree of adjustment relative a short lever arm as provided by a ball and socket interface between the lever arms. The ability to reverse the short lever arm essentially doubles the number of mounting possibilities. By selecting between a front insert and a side insert, a handle is readily positioned for either front or side tank mounting. Various handles may also be readily attached to the lever post to provide various aesthetic appearances.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: January 4, 2011
    Assignee: Brasstech, Inc.
    Inventors: Michael Scott Tau, Iosif Manga, Billy Ray Smith, Jr.
  • Patent number: 7140050
    Abstract: An automatic flushing actuator that mounts to an overflow pipe in a tank style toilet includes a proximity sensor, a housing enclosing a motor mount and gear assembly, and a rotatably mounted lever on top of the housing. A clamp is adapted to be affixed to the side of the housing and secure the actuator to the overflow pipe. When installing the actuator, the clamp is affixed to the overflow pipe before the housing is mounted onto the clamp. The clamp allows the housing to be removably mounted or locked in position on the clamp. The lever coupled to the top of the housing is rotated to a desired position, and a chain is connected to a handle of the toilet opens the flush valve.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: November 28, 2006
    Assignee: Technical Concepts, LLC
    Inventor: Kenneth J. Muderlak
  • 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: 6092245
    Abstract: A universal-fit, multiple-application molded thermoplastic operating lever for a flush toilet, the toilet having a buoyant flush valve flapper, tank ball or activating disk utilizing flexible connection chain for momentarily lifting the flush valve by manual operation of the lever, in which the lever incorporates a repeating sequence of different attachment points each suitable for a different toilet installation, each sequence including an intentionally weakened cut-off point which the installer can sever using ordinary hand tools, with the lever having a cruciform cross section and being made of molded alpha butyl styrene (ABS) so that the installer may bend the lever by hand up to about 45.degree. from its as-molded shape.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: July 25, 2000
    Inventor: Butch Jones
  • Patent number: 5996135
    Abstract: A water-saving structure of toilet bowl, includes a tube member, a pull knob, a stopper body, a pull cord, a handle and a valve body disposed at a bottom of a water tank of the toilet bowl. When pulling the pull knob, the stopper body is stopped by the tube member and the valve body is pulled open without totally buoying up, permitting a small amount of water to flow out of the water tank so as to save water. Alternatively, the handle can be pressed down to totally pull up the valve body, permitting the water in the water tank to entirely flow out.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: December 7, 1999
    Inventor: Elvis Hsieh
  • 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: 5960482
    Abstract: A device for controlling different amounts of flushing water out of a toilet tank includes a casing having a through-hole defined therein and a pair of channels formed on both sides thereof; a shaft rotatably arranged in the casing with the front end extending out through the through-hole, the shaft being spring-loaded to define a rotationally initial position and so as to urge itself to return to the initial position after rotation; a disk secured to the shaft and having a pair of posts spaced apart at a predetermined angular distance; a reel having a peripheral recess for receiving a string, the string being fixedly attached to the reel; a pair of trigger members pivotally connected to the casing, each trigger member being pivotal to a first position in which one of the posts is retained by the trigger member after the shaft is rotated away from the initial position through a respective angle, and to a second position in which the post is released to return to the initial position; a pair of poles movable t
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: October 5, 1999
    Inventor: I-Yao Chang
  • Patent number: 5918324
    Abstract: A two-stage toilet is composed of a handle switching device, a locating and fastening device, a water adjusting device, and a water stopping valve device. The handle switching device consists of a camshaft on which the locating and fastening device and the water adjusting device are mounted. The water adjusting device comprises a cord pulling rod for actuating a transmission cord of the water stopping valve device. The water adjusting device is composed of a retaining slot and a retaining block which is retained in the retaining slot at the time when the flush handle of the toilet is pressed to cause the water stopping valve of the water stopping valve device to remain open to permit the flushing until such time when the water adjusting block of the water adjusting device is so actuated by a float ball as to bring about the disengagement of the retaining block with the retaining slot, thereby resulting in an interruption of the flushing.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: July 6, 1999
    Inventors: Ming-Chang Hwang, Sheng-Lung Ma
  • Patent number: 5836021
    Abstract: A flexible chain and cord-and-return mechanism used in flushing a toilet. A handle is removably attached to the end of the chain. Various handles are designed in a multitude of shapes including objects relating to a decorating theme, a special occasion or event, or a hobby or interest. The chain passes into the toilet housing through a smooth opening with minimal friction and, within the housing, is connected to a line that passes through a pair of tubes that are slidably connected, the line ending at the tank valve. A spring is fixed to each of the two tubes to return the chain-and-line tank valve actuator to its initial, actuation position after each flushing.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: November 17, 1998
    Inventors: Gary L. Davidson, Sherri L. Davidson
  • Patent number: 5544368
    Abstract: A two-stage flush device for a toilet tank comprising a cylindrical bolt adapted to be fixed in a hole of a side wall of a toilet tank and partly exposed out of the side wall, a rotatable button having a shaft portion fitting in a center hole of the cylindrical bolt and also firmly connected with a first actuating arm connected with a low-level valve by means of chain, a push rod having a push button at an outer side and extending through the center hole of the rotatable button to protrude through the center hole to operate a second actuating arm connected with a high-level valve by means of a chain, the first actuating arm lifted by the rotatable button for flushing a larger volume of water, and the second actuating arm lifted by the push rod for flushing a smaller volume of water.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: August 13, 1996
    Inventor: Kuo-Hsin Wang
  • Patent number: 5414877
    Abstract: A flush device for water closets comprising an overflow tube, a flush lever, a handle connected to a first end of the flush lever, a flapper ball, a connecting device and a lever restraining device. The connecting device comprises a support guide having a rod member having its first end connected to a ring member which is affixed to the overflow tube, and its second end connected to a pulley, a long robe is looped onto the pulley having at first end connected to the flapper ball and the second end connected to a second end of the flush lever via the pulley, a short robe having at first end connected to the flapper ball and the second end connected to the second end of said flush lever. The lever restraining device being in a form of an angular restrainer has a ring connector attached to the overflow tube, a right-angled stop rod at a first side of the ring connector, and a positioning screw at a second side of the ring connector. This device controls the amount of the flush water discharged.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: May 16, 1995
    Inventors: Pang-Yen Tsai, Chien-Liang Hsiao
  • Patent number: 5341522
    Abstract: A water conservation device for use in toilet tanks which have a valve movable between an open and a closed position. The valve is connected to a flush linkage which draws the valve to the open position upon activation of a flushing lever. The water conservation device consists of an elongate body having a first end and a second end. The first end of the elongate body is indirectly linked to the valve. The second end of the elongate body is indirectly suspended within the toilet tank, such that the elongate body is disposed at an angle to the valve. As the elongate body pivots, the weight of the elongate body pulls the valve into the closed position.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: August 30, 1994
    Assignee: The Enviro Shop Corp.
    Inventor: James Munro
  • Patent number: 5191661
    Abstract: A control device including an inlet pipe and an outlet pipe disposed in the water tank, a valve disposed on top of the outlet pipe, a pawl rotatably supported on top of the inlet pipe, a float slidably engaged on the inlet pipe, a pusher extended downward from the float, the float will be caught by the pawl when the float moves downward, the outlet pipe will be closed by the valve after all of the water has been discharged, and the float will not be caught by the pawl when the knob is released right after depression so that the float may move downward to push the valve.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: March 9, 1993
    Inventor: Fong C. Chang
  • Patent number: 5175893
    Abstract: An improved dual flush valve assembly adapted for connection with a toilet tank provides a partial or full flush of water. The assembly comprises two actuating lever arms and three chains depending from the levers for connection with two flap valves. The flap valves are mounted on a hollow body having a hollow adapter for connection with a discharge pipe in a bottom wall of the tank. The adapter includes a plurality of resilient finger-like members which engage an interior of the discharge pipe. The assembly produces substantial savings in water consumption.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: January 5, 1993
    Inventor: Raul A. Navarrete
  • Patent number: 5105480
    Abstract: A pivoting cup is mounted on the flap valve of a toilet. Two flexible actuating elements control the position of the cup. The amount of water used for a flush depends on the orientation of the cup. If the cup is selectively oriented to hold water, a partial level flush can be achieved.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: April 21, 1992
    Inventors: Anthony L. Howell, Thomas A. Howell
  • Patent number: 5088133
    Abstract: A flush mechanism for toilets comprises a water supply control device and a water escape control device independently disposed in a flush tank. The mechanism is actuated to flush by raising a plunger to lift a piston of the water escape position from its normally closed position to its open position allowing water flow from the tank to a toilet bowl associated therewith and maintain that position by vacuum suction.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: February 18, 1992
    Inventor: Tsai-An Chen
  • Patent number: 5031250
    Abstract: 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: Grant
    Filed: April 19, 1988
    Date of Patent: July 16, 1991
    Inventor: Manuel Garcia De Couto
  • Patent number: 4910812
    Abstract: A semi-flush valve mechanism in a toilet tank is provided with a two way flush operating handle. If the handle is pressed downward the toilet tank is flushed fully in the conventional way. If the handle is pressed upwardly the toilet tank is only half emptied in a semi-flush. A pivotally extended vane on a tilted valve assembly will receive a water stream from a refill tube to sooner help restore the toilet tank valve assembly to its closed upright position causing the semi-flush.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: March 27, 1990
    Inventor: Joseph Comparetti
  • Patent number: 4633534
    Abstract: A universal shut-off device for stopping the flow of water from a toilet tank to a toilet bowl during the flushing of the toilet. The device is mountable on toilet tanks having a handle on either the right-hand side or the left hand-side of the tank. The device has a stop handle accessible from the exterior of the toilet tank. If the plumbing is partially or completely plugged up and the toilet bowl begins to overflow during flushing, the flow of water into the bowl can immediately be shut off during the flushing operation. This is carried out by turning a stop handle which causes the tank ball to move against the valve seat and stop the flow of water from the toilet tank to the toilet bowl. A bendable and ductile operator arm is shaped by the user to push against the tank ball.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: January 6, 1987
    Inventor: Ronald P. Hardman
  • Patent number: 4499616
    Abstract: A flush valve for use with a toilet tank assembly having a flush outlet surrounded by a valve seat, an overflow pipe, and a lift arm movable to initiate flow through the valve seat includes a one piece integral body of molded plastic material. The valve body includes a float fabricated on one end that is aligned with the valve seat to control flow therethrough. An integral beam is fabricated at another end of the body. The float and beam are interconnected by planar portions of the body. A mounting collar is also integrally formed on another planar portion of the body extending from the beam to the collar. The collar may be mounted on the overflow pipe to secure the valve to the toilet tank assembly. An elongated lift strap integrally fabricated with the body extends from the float member and includes a tooth structure for attachment to the lift arm.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: February 19, 1985
    Assignee: Fillpro Products, Inc.
    Inventor: Dwight N. Johnson
  • Patent number: 4175295
    Abstract: Disclosed herein is a water saving toilet characterized in that a single handle actuates either of two water sealing valves horizontally offset one from the other and when actuated makes it possible to vary the amount of water introduced into the bowl so that a lesser amount of water can be used to evacuate urine.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: November 27, 1979
    Inventor: Robert L. Cameron
  • Patent number: 4173044
    Abstract: A drain valve operating device for a cistern of flush toilet whereby the amount of water for flushing a toilet pot can be available either in "large" amount or in "small" amount by turning a lever either to the right or to the left.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: November 6, 1979
    Inventor: Etsuji Ota
  • Patent number: 4122564
    Abstract: An improved dual discharge valve unit is provided for easy installation in an existing water closet flush tank. The unit provides flap valves disposed at two different levels in the tank for controlling the discharge of water therefrom. The structural arrangement is such that depending on the direction in which the actuating handle on the tank is pivoted either a full flush or a partial flush may be had as desired.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: October 31, 1978
    Inventors: Lyle F. Addicks, Bennie Gift, William R. DiCicco, Jr.
  • Patent number: D346010
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: April 12, 1994
    Inventor: James E. Conerly