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| Number | Title | Issue Date |
| 7581263 | Toilet flush water opening device provided with an electrohydraulic actuator A toilet flush opening device (10) includes a water cistern (12) that includes a lower discharge aperture (14) and a vertical moveable discharging open/close element (16) for this aperture (14), which is able to occupy a closed low... | 09/01/2009 |
| 7325781 | Automatic bathroom flushers with modular design A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 02/05/2008 |
| 7188822 | Enclosures for automatic bathroom flushers A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 03/13/2007 |
| 7156363 | Bathroom flushers with novel sensors and controllers A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl... | 01/02/2007 |
| 7140050 | Automatic flushing actuator for tank style toilet 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 ... | 11/28/2006 |
| 7062801 | Two-staged toiled tank bowl control system A two stage toilet tank bowl control system includes a tank ball selectively positioned on the valve seat in the water tank. The tank ball is linked to a lifting lever so as to raise the tank ball from the seat when the lifting lever is rotated in its flushing direc... | 06/20/2006 |
| 6934976 | Toilet flusher with novel valves and controls A tank-type flusher includes an intake valve, i.e., a fill valve, a diaphragm-operated flush valve, and a pressure control mechanism. The intake valve is connected to an external water source and is constructed to close water flow to a water storage tank at about a ... | 08/30/2005 |
| 6823534 | Dual flush apparatus A dual flush toilet and dual flush apparatus for a toilet having a discharge port for flushing water into a toilet bowl includes a buoyant flush valve for releasably sealing a discharge port and having a cavity for trapping air to cause a flush valve to remain open ... | 11/30/2004 |
| 6647559 | Flushing unit for a toilet The present invention relates to a flushing unit for a toilet which allows water in a flushing tank to be discharged rapidly by means of the change of water pressure and working of a piston, so that only a small quantity of water is required to wash out t... | 11/18/2003 |
| 6584622 | Method and device for timer-controlled flushing of water toilets Methods and apparatus for flushing a toilet are disclosed, the method including actuating a flushing initiator to open a reservoir discharge valve, closing the reservoir discharge valve after a predetermined period of time, and determining that predetermi... | 07/01/2003 |
| 6421843 | Low water volume toilet A toilet and method for flushing using less than 1 gallon of water, comprising: a toilet body comprising a bowl, support walls, rim, and a waste outlet; a water jet macerator having a waste inlet connected to the waste outlet, a macerator water inlet conn... | 07/23/2002 |
| 5553333 | Pressurized water closet flushing system An apparatus for flushing a water closet bowl includes a pressurizable reservoir, within which is formed a primary and a secondary pressure zone. Formed at the bottom of the reservoir is an exit aperture through which the pressurized fluid is discharged i... | 09/10/1996 |
| 5228147 | Hydropneumatic flusher for toilet tanks The hood (1) has a tubular duct (2) in axial correspondence with the hole provided in the base thereof and in whose inside the overflow tube (3) is guided. Between the duct (2) and the side wall of the hood (1) the pneumatic chamber (11) in which the floa... | 07/20/1993 |
| 5170514 | Automatic fluid-flow control system A system for controlling liquid flow in bathrooms and the like in response to the presence of the user, which is configuration-adjustable to permit use in preselected sanitary applications. Light emitting means cooperate with a light sensor to detect ligh... | 12/15/1992 |
| 5004462 | Adjustable water-level flushing apparatus A toilet flushing apparatus (10) that conserves water by providing either a low-level water flush for liquid waste or a full-level flush for solid waste. The apparatus (10) consists of a water-level release assembly (12) that is attached to a toilet overf... | 04/02/1991 |
| 4833738 | Control valve assembly for a cistern flushing apparatus A dual push-button control valve assembly which can be mounted on the side wall of a cistern. The assembly includes a housing having an end which is passed outwardly through a hole in the wall of the cistern. Collars are threaded onto the end on opposite ... | 05/30/1989 |
| 4825490 | Automatic toilet flushing apparatus A simple, lightweight device for the automatic flushing of a toilet which works on the principle of displaced air is disclosed. An air bag disposed between the seat and the rim of the toilet bowl communicates with a bellows vertically disposed within the ... | 05/02/1989 |
| 4809367 | Cistern flushing apparatus A cistern flushing apparatus of the kind which comprises an upright stem carrying a closure member at its lower end which, in a first position of the stem, seats on a cistern outlet and which, in a second position of the stem, is raised off the outlet to ... | 03/07/1989 |
| 4756031 | Automatic toilet flushing system An automatic toilet flushing system can be used in any existing manual flush toilet and comprises a first sensor for detecting toilet use, a second sensor for detecting filling of the toilet tank to a predetermined level, and a valve actuator linked to th... | 07/12/1988 |
| 4726190 | Pressure generator with check valve On actuation, each pressure generator at each of a plurality of locations along a conduit develops a pressure rise in the conduit to energize a pressure sensitive device in fluid communication with the conduit. Each pressure generator includes a bulbous m... | 02/23/1988 |
| 4682533 | Vandal resistant and tamper proof pneumatic push button assembly for moving a volume of fluid A push button assembly for moving a volume of fluid out of and into a port. The assembly has a housing containing a rubber-domed diaphragm. The domed diaphragm is designed so that it is deformable but readily returns to its original shape. The pressing of... | 07/28/1987 |
| 4631760 | Automatic flushing system An automatic flushing system for use with toilets or urinals which includes a tank having a siphon outlet and a hollow float which has a water access port and an air access port. There is also provided support means for supporting the float for generally ... | 12/30/1986 |
| 4630644 | Dual operated metering valve connected to both a hand operated push button and a foot operated push button An improved, remote controlled valve and dual push button assembly, having a hand operated push button which, when depressed and released, opens a water valve for a predetermined length of time after which the valve closes. The valve is also connected to ... | 12/23/1986 |
| 4586692 | Flushometer valve integrable with a structure A flushometer valve integrable with a structure to which it is mounted.... | 05/06/1986 |
| 4584726 | Fluid operated waste tank servicing assembly A hydraulically operated drain valve is interposed in the cleaning fluid path before the spray/rinse outlet. The fluid under pressure activates a piston which operates the drain valve. A precharge reservoir is also interposed in the supply line before the... | 04/29/1986 |
| 4428084 | Water control device for flush toilet This invention relates to a "Water Control Device for Flush Toilet". The water may be flushed in several phases thru the control means, which comprises a hydraulic control assembly, the actuation between the main axle and the actuating axle, a lever, and ... | 01/31/1984 |
| 4333184 | Multi-function closet stool This invention, is a multi-function closet stool, which can really serve the purpose of automatic timing, measuring pressure, flushing and saving water. When one sits on the seat of closet stool, the driving piece pulls the driving steel cable to make tim... | 06/08/1982 |
| 4304015 | Pneumatic actuating device for a toilet flush valve A pneumatic actuating device for a toilet flush valve, comprising a cap emplaced on the flush valve housing and having an integral hemispherical bell member extending laterally therefrom, the bell member containing a resilient membrane. A manual pusher pr... | 12/08/1981 |
| 4275471 | Hydraulically operated flush valve for toilet flush tanks and similar devices This invention comprises an improved hydraulically operated flush valve for toilet flush tanks and similar devices. Its main components are a cylinder and piston assembly positioned with its longitudinal axis directly above and vertically aligned with the... | 06/30/1981 |
| 4196481 | Male urinal with automatic flushing A male urinal automatically flushes when the user steps off a foot plate. The foot plate pneumatically sealed is resiliently deformable and is connected by a pneumatic conduit to a normally open switch whose closure completes a circuit that opens an elect... | 04/08/1980 |
| 3999223 | Flush valve with selected volume control A dual capacity flush valve has a handle or actuator which is normally operated to provide a low volume flush; a selector member is positioned adjacent the handle and when operated enables the handle to be operated to provide a full capacity flush. The ha... | 12/28/1976 |
| 3994029 | Fluid control system Described herein is a pressure activated fluid control system particularly adapted for use as a flushing mechanism for toilets of the water tank type. The system includes a push-button actuated needle valve assembly which, in the shutoff position, presses... | 11/30/1976 |
| 3987501 | Toilet flush assembly A control for the outlet of a liquid supply tank such as, for example, the water tank of a toilet, utilizes the retention or escape of air trapped above a valve float of the control to seat and unseat the valve against the outlet respectively. One embodim... | 10/26/1976 |
