Having Stationary Pivot Within Tank Patents (Class 4/414)
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Patent number: 10415221Abstract: A toilet flush lever assembly having an adjustable length internal lever arm with a variable angle of connection to a short arm that passes through the wall of the toilet tank such that the angle of mounting of the adjustable length internal lever arm to an external flush lever arm is adjustable.Type: GrantFiled: May 27, 2016Date of Patent: September 17, 2019Assignee: FLUIDMASTER, INC.Inventors: Venkat Mallela, Shijin Komath, Jithin Karukasseril Vijayan, Manivannan Venkatachalam
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Patent number: 9926694Abstract: An operating device for a flush water tank assembly includes: a rotary shaft, an operating handle, an operating wire, and a drive unit, wherein the drive unit includes: a rotary member, a rotary winding member, a locking unit for mutually locking the rotary member and the rotary winding member when the rotary winding member rotates in a forward rotational direction from operating position P1 and reaches operating position P3, and a lock release portion for releasing the lock between the rotary member and the rotary winding member when the rotary member and the rotary winding member rotate in a forward rotational direction from operating position P1 and reach operating position P3.Type: GrantFiled: August 10, 2016Date of Patent: March 27, 2018Assignee: TOTO LTD.Inventors: Koki Shinohara, Hideki Tanimoto, Kenji Hatama, Makoto Abe
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Patent number: 9890527Abstract: An operating device includes a rotary shaft, an operating handle, an operating wire, and a drive unit; wherein this drive unit includes: a rotary member, a rotary windup member, a locking device for mutually locking the rotary member and the rotary windup member until the rotary windup member rotates in the forward rotational direction from a first operating position and reaches a second operating position, a lock release device for releasing the lock between the rotary member and the rotary windup member so the rotary windup member rotates in the reverse rotational direction and moves to the first operating position regardless of any operation of the operating handle when the rotary member and the rotary windup member reach the second operating position, and a biasing device for restoring the rotary member to an initial position at which a toilet flush operation can be started from the operating position.Type: GrantFiled: March 10, 2017Date of Patent: February 13, 2018Assignee: TOTO LTD.Inventors: Koki Shinohara, Hideki Tanimoto, Kenji Hatama, Makoto Abe
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Patent number: 9695581Abstract: A flush operating apparatus includes: a flush valve for opening and closing a discharge port on a storage tank; a manual operating unit, provided on the flush water tank and capable of manually operating the motion of the flush valve; a powered operating unit capable of operating the motion of the flush valve with power; and a control device for receiving a toilet flush start signal transmitted from either an instruction device by which a user instructs a toilet flush operation, or from a body sensor for sensing a user and activating a power drive motor; wherein the powered operating unit is separately installed from the manual operating unit, and is installed so as to be removable from the flush water tank in accordance with flush water tank apparatus or toilet main unit usage conditions.Type: GrantFiled: March 4, 2015Date of Patent: July 4, 2017Assignee: TOTO LTD.Inventors: Koki Shinohara, Hideki Tanimoto, Yukinori Kubozono
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Patent number: 8430118Abstract: An automatic flush device is provided that is mounted in a water tank. The automatic flush device includes an inlet control module, a lever module for discharging water and a tank module. The inlet control module includes an inlet element linked to the inlet tube and a solenoid valve set at the inlet element. The lever module for discharging water has a cup connected with the solenoid valve by a filling tube. An electronic sensing controller controls the opening and closing of the solenoid valve to fill water into the cup. When the cup is full of water, the lever unbalances and slants to control the flushing of the water tank. Therefore, it is easy to control water current while requiring minimal power, thereby saving electric energy.Type: GrantFiled: June 25, 2010Date of Patent: April 30, 2013Assignee: Shanghai Kohler Electronics, Ltd.Inventor: Def Xiong
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Patent number: 7966676Abstract: The present invention provides a toilet bowl flushing water tank device which can largely open a discharge valve element instantaneously and, at the same time, can ensure a relatively large space in the vicinity of a discharge valve device thus enhancing a discharge capacity with a small power. A push button mounted on a tank lid body of a flushing water tank body is arranged at a position offset to one side from a position where a discharge opening is formed, a leverage device is constituted of a lever which is interlockingly connected to the discharge valve element and a pedestal which pivotally supports a middle portion of the lever. The pedestal pivotally supports a middle portion of the lever at a position closer to a push button side than the discharge valve device.Type: GrantFiled: February 26, 2008Date of Patent: June 28, 2011Assignee: Toto Ltd.Inventors: Yoichiro Ueno, Eiji Fukuzawa, Haruki Matsuda, Yukihiro Muroya
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Patent number: 6804843Abstract: 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: GrantFiled: March 26, 2003Date of Patent: October 19, 2004Inventor: Sheng Fu Hung
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Patent number: 5819330Abstract: A toilet enhancement which utilizes a flush handle having push-button settings for light and heavy flushes, the heavy setting fully raising the flush lever in the toilet tank, the lever in turn fully raising the flap valve at the bottom of the tank and allowing all of the water to flow out into the bowl of the toilet, the light flush setting shifting a cam connected to the flush handle so that the handle rotates slightly before coming into contact with the flush lever, thereby raising the lever and the flap valve to positions which are lower than their fully raised positions, the flap valve being connected to a timing gear mechanism which controls the rate at which the valve returns to its seated position, so that the flap valve closes from its partially raised position in an amount of time which allows approximately half of the water in the tank to flow out to the bowl.Type: GrantFiled: July 3, 1997Date of Patent: October 13, 1998Inventor: Don Yokel
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Patent number: 5304163Abstract: The device of the present invention includes a flexible container having an administration port and a flexible tube extending therefrom. The administration port includes an access membrane through which a spiked cannula can be inserted to gain access to the interior of the flexible container. The flexible tube contains a frangible or breakaway valve therein. Permanently secured to the end of the flexible tube is a sheath having a substantially circular base and an open-ended skirt including an inner surface depending from the base. The skirt includes a plurality of inwardly projecting bumps intermittently spaced around the inner surface to sealingly engage a standard drug vial. A sharp cannula is mounted within the skirt to pierce the stopper of the standard drug vial to establish fluid communication between the cannula and the interior of the drug vial. A peelable closure is provided covering the skirt opening prior to use to maintain a sterile condition of the device.Type: GrantFiled: January 29, 1990Date of Patent: April 19, 1994Assignee: Baxter International Inc.Inventors: Paul J. Bonnici, H. Edward Chase, Douglas S. Sommerville
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Patent number: 5291620Abstract: A device for regulating the discharge of water from a storage tank associated with a toilet bowl for flushing of the toilet bowl, with the operation of the device being through slight pressure on a push button on a rod extending through a front or end wall of the storage tank. This device has a flapper assembly for opening and closing access to a drain from the storage tank, with this flapper assembly having a storage volume with an adjustable opening for controlled release of water therefrom to control the timing of the closure of the flapper assembly against the drain. A trigger assembly portion has a trigger arm with one end engaged with the push button and the other end adapted to engage a distal arm of a pivotal lever arm, this lever arm carrying a buoyant float. Release of the engagement of the distal ends of the trigger arm and the lever arm causes the lever arm to rise, due to the float, and the lever arm engages the flapper assembly to open the drain.Type: GrantFiled: July 8, 1993Date of Patent: March 8, 1994Inventor: Lonnie W. Gilley
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Patent number: 5265282Abstract: The actuating device has a vertically displaceable trigger (9) which is mounted on a hood-shaped housing part (6a) of the drain valve (3). A lever (2), whose horizontal axis of rotation (5) is mounted on a float housing (6b), is pivoted with the trigger (9) in one or the other direction of rotation. To induce flushing, the trigger (9) is moved in the downward direction with a release knob (1) against the restoring force of a spring (24). The trigger (9) now engages a pivotable arm (9b), and the lever (2) is pivoted such that a valve tube (4) connected to the lever (2) is raised, and the valve opening (11i) is thus opened. If the release knob (1) is moved once again in the downward direction after a partial flushing, the trigger (9) will engage another pivot arm (2a), and the lever (2) will again be pivoted into the starting position, in which the outlet opening (11i) is closed.Type: GrantFiled: August 28, 1991Date of Patent: November 30, 1993Assignee: Geberit AGInventor: Peter Schmucki
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Patent number: 5243713Abstract: A toilet flush mechanism including a cam attached to a flush handle and a pivoting arm for controlling a tank release valve. The cam includes a lower portion engaging the lower surface of the arm, and an upper stop for engaging the upper surface of the arm to limit cam rotation and arm elevation. The arm rests on the cam lower portion such that rotation of the handle and cam in a first direction raises the arm by a first amount to contact a first portion of the stop to provide a full flush, and rotation of the handle and cam in a second direction raises the arm by a second amount less than the first amount to contact a second portion of the stop, thereby to provide a limited, water-conserving flush.Type: GrantFiled: October 30, 1991Date of Patent: September 14, 1993Inventor: Robert O. More
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Patent number: 5175893Abstract: 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: GrantFiled: May 14, 1991Date of Patent: January 5, 1993Inventor: Raul A. Navarrete
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Patent number: 5067180Abstract: A method and apparatus for reducing water consumption in a toilet or other apparatus for human body waste disposal. Water contained in a primary water tank (10) and a secondary water tank (15) is selectively discharged into waste container (5) by means of primary tank control arm (30) and secondary tank control arm (25). Water is discharged from primary water tank (10) through primary valve (110) and from secondary water tank (15) through secondary valve (120). The discharge of water from each tank is selectively controlled by the user depending upon the type of waste to be disposed. For disposal of liquid waste only, water is discharged from primary water tank (10). For disposal of solid waste, water is discharged from primary water tank (10) and secondary water tank (15) at the same time. The apparatus and method can be used to retrofit a toilet or other apparatus for human body waste disposal.Type: GrantFiled: April 17, 1990Date of Patent: November 26, 1991Inventor: Kenneth J. Figeroid
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Patent number: 4858251Abstract: A pressurized flushing cistern for a water closet comprising a container with a bottom discharge opening, a liquid inlet conduit for admitting liquid into the container, the inlet conduit having an outlet disposed within the container at an upper portion of the container, an opening having an outlet valve seat connecting a lower portion of the container to the discharge opening, a flushing valve for closing the valve seat, the flushing valve comprising a floating valve member disposed in a chamber, the chamber closed at one end thereof where the chamber is connected to the bottom discharge opening and a manually operable activating means for unseating the flushing valve, the activating means comprising a lever device to raise the floating valve member within the chamber.Type: GrantFiled: November 17, 1987Date of Patent: August 22, 1989Inventor: Alfredo de Belaunde
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Patent number: 4304014Abstract: This invention relates to a variable volume flushing cistern and in particular it relates to a cistern of the type in which a selection can be made of the amount of water discharged during a flush.Type: GrantFiled: April 21, 1980Date of Patent: December 8, 1981Assignee: United Packages LimitedInventor: Bruce R. Thompson
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Patent number: 4185339Abstract: A flush tank is provided including a lower outlet opening and internal structure for guided movement of a free spherical buoyant valve ball into seated position in the outlet opening of the tank after the flush water has been drained therefrom. The tank includes a float controlled water inlet valve and float operated structure for at least partially unseating the valve ball from the water outlet in response to the level of water within the tank exceeding a predetermined maximum established by the float controlled water inlet valve, in the event of a malfunction of the water inlet valve to completely terminate the entrance of water into the tank as the level of water reaches the aforementioned predetermined maximum. Further, the lower outlet opening includes an upwardly facing annular concave spherical seat of the same radius of curvature as the valve ball and the seat is defined by a tapering peripheral lip portion of a resilient valve ball seat.Type: GrantFiled: November 2, 1977Date of Patent: January 29, 1980Inventor: Juan A. Morales
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Patent number: 4172299Abstract: A dual control for selectively releasing different amounts of water from a toilet flush tank, the device including a bifurcated activating handle and arm connected by a lever and chains to first and second stoppers that seat at different vertical positions on a hallow tower.Type: GrantFiled: December 30, 1977Date of Patent: October 30, 1979Inventor: Joaquin G. del Pozo