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| Number | Title | Issue Date |
| 7814582 | System and method for measuring and monitoring overflow or wetness conditions in a washroom A system for detecting an actual or impending overflow condition from a washroom fixture includes an overflow sensor configured with the fixture at a location to detect an abnormal rise in water level within the fixture before water overflows the fixture. A water se... | 10/19/2010 |
| 7415737 | Automatic flusher for tank-type toilet An automatic flushing system is equipped with a buoyancy mechanism to unseat a valve set in a tank of a toilet. The automatic flushing system, equipped with battery power, includes sets of sensing, actuating, latching, buoyancy, unseat/seat and valve members. The ba... | 08/26/2008 |
| 7367541 | Automatic flush valve actuation apparatus A flexible drive mechanism for a flushing apparatus actuated by movement of a flush handle via an actuation element is disclosed. The drive mechanism includes a housing and flexible drive system in the housing, the flexible drive system including an actuating elemen... | 05/06/2008 |
| 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 |
| 7211187 | Mobile or stationary modular self-contained dehydration toilet, dehydration engine, and gray water recovery system A compact dehydration engine and method for treating human waste and gray water residual electro-coagulants that includes a heated waste dehydration chamber that has low energy consumption and low water consumption in use. The system can be employed in stationary or... | 05/01/2007 |
| 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 |
| 7082624 | Water-separating apparatus for toilet tank A water-separating apparatus for toilet tank bridges a toilet tank and a water supply includes a concentric tube, a distributing tube and a solenoid valve. The concentric tube has a large tube containing a small tube, and an inlet connecting to the water supply and ... | 08/01/2006 |
| 7075768 | Faucet controller A controller apparatus for a faucet, for controlling the faucet using energy created by electric power generation, wherein all components used therein keep necessary performance thereof for a long period of time and wherein no components require exchange thereof unt... | 07/11/2006 |
| 7063103 | System for converting manually-operated flush valves Disclosed is a method and system for converting or retrofitting manually-operated flush valves. A conversion system for converting an installed manually-operated flush valve includes a power module, a control module, and a driver module mechanically coupled to a man... | 06/20/2006 |
| 7047574 | System and method for automatically varying a volume of a liquid held by a toilet receptacle A toilet system comprises a liquid receptacle and a control element. The control element configured to automatically control an amount of liquid input to the liquid receptacle for each of a plurality of flushes of the liquid receptacle such that an amount of the liq... | 05/23/2006 |
| 6996863 | Automatic faucet control device and control method An automatic faucet control device including an electromagnetic valve for opening and closing a flow channel of a faucet, a ray emitting device (5) for emitting infrared rays to a target to be detected, a ray receiving device (6) for receiving the infr... | 02/14/2006 |
| 6978490 | Automatically operated handle-type flush valve A toilet room flush valve has a valve handle and an actuator mounted on the valve body to cause either sensor-initiated automatic movement or user-initiated manual movement of the valve handle. The actuator includes a handle assembly pivotally mounted in a housing. ... | 12/27/2005 |
| 6948194 | Stool flushing device An object of the present invention is to provide a toilet cleaning device which is capable of cleaning a toilet stool by supplying cleaning water in an appropriate quantity corresponding to the state of usage by a user, which is provided with a self-diagnosis functi... | 09/27/2005 |
| 6879320 | Auto-control display device incorporated with lavatory system An auto-control display device for incorporating with a lavatory system in a service area such as a lavatory, includes a sensor for sensing a use of the lavatory system, a display unit which is interacted with the sensor and is placed at an eye viewing location with... | 04/12/2005 |
| 6862754 | Dual phase flush urinal A dual-phase flush urinal that maintains itself in a sufficiently sanitary condition with minimal water consumption. The urinal includes a piece of chinaware having a rear wall with a pair of sidewalls depending normally outward therefrom. A bottom extent of the sid... | 03/08/2005 |
| 6757919 | Automatically operated handle-type flush valve A flush valve includes a valve body having a valve for controlling flow between an inlet and outlet. A manual operator assembly includes a nut attached to the valve body. An adapter mounted in the nut has a plunger pin movable to initiate operation of the flush valv... | 07/06/2004 |
| 6671890 | Automatic water feed method in lavatory using artificial retina sensor and automatic water feed mechanism in lavatory using artificial retina sensor An automatic water feed system and method for providing control of water to lavatory appliances upon sensing a user. The system having a control valve for controlling the flow of water, an artificial retina sensor for acquiring two dimensional images of a... | 01/06/2004 |
| 6643853 | Automatically operated handle-type flush valve A toilet room flush valve for use in flushing toilets and urinals includes a valve body having a water inlet and a water outlet. There is a valve within the body for controlling flow between the inlet and the outlet. A handle is mounted on the valve body ... | 11/11/2003 |
| 6640356 | Method for transmitting and evaluating advertising and information in toilet facilities and a display arrangement for carrying out said method in a urinal or toilet area An advertising surface on which advertising is conveyed through still or moving images is mounted on or above a urinal (1). The advertising is activated by the user of the urinal (1) when he approaches the same. The advertising can be controlled through t... | 11/04/2003 |
| 6619614 | Automatic flow controller employing energy-conservation mode An automatic flusher includes an object sensor. When the object sensor detects a target meeting certain criteria, battery-powered control circuitry causes the flusher's valve to open. By pressing a push button, a user can make the circuit open the flusher... | 09/16/2003 |
| 6598245 | Automatic water feed method in lavatory and automatic water feed mechanism in lavatory An automatic water feed mechanism and method is provided by equipping a lavatory with a two dimensional sensor array such as a camera unit for monitoring a target area that a user may enter. An infrared emitter and an infrared detector can also be activat... | 07/29/2003 |
| 6581215 | Sterilizing and air conditioning electronic urinal A sterilizing and air conditioning electronic urinal includes a power rectifier circuit, a microcomputer control unit, a sensitivity control circuit, time delay circuit, a high voltage generating circuit, an ozone generator, a mixing device, a flushing so... | 06/24/2003 |
| 6560790 | Flush control A high flow valve assembly and a low flow valve assembly are in parallel flow relation between an inlet and an outlet of a flush controller. The valve assemblies are opened by solenoid operated pilot valves under the control of a microprocessor based flus... | 05/13/2003 |
| 6549816 | Network software for a plumbing control system A plumbing control system includes a plurality of plumbing fixtures operated by an electronic control board having a microprocessor. The control board can form a node on a network that monitors and controls the functions of multiple boards throughout a fa... | 04/15/2003 |
| 6499152 | Flush controller A high flow valve assembly and a low flow valve assembly are in parallel flow relation between an inlet and an outlet of a flush controller housing. The valve assemblies are opened by solenoid operated pilot valves under the control of a microprocessor ba... | 12/31/2002 |
| 6212697 | Automatic flusher with bi-modal sensitivity pattern In an automated flush system (10), a control circuit (12) controls a flusher (16) in response to the output of a sensor (14). The vertical sensitivity pattern (24) of the sensor (14) is angled downward. Consequently, radiation that the sensor (14) emits t... | 04/10/2001 |
| 6061843 | Method for automatically triggering a flushing event In a method for automatically triggering flushing of a urinal with water an electrically actuatable shut-off valve is arranged in the water inlet line for shutting off water flow. A temperature sensor is positioned at a siphon of the urinal. Signals gener... | 05/16/2000 |
| 5956779 | Hydraulic drive urinal flushing system A hydraulic drive urinal flushing system includes a hydraulic cylinder having a piston reciprocated therein and a piston rod upwardly extended from the piston, a weight sensor mounted on the piston rod outside the hydraulic cylinder, and a valve connected... | 09/28/1999 |
| 5901384 | Toilet assembly having automatic flushing system A toilet assembly having an automatic flushing system comprising a toilet bowl having a toilet cover, the toilet cover containing a window disposed therein, a water holding tank operatively associated with the toilet bowl, the holding tank containing stru... | 05/11/1999 |
| 5822806 | Wall mounted waste receptacle A wall mounted waste receptacle including a housing having an enlarged opening extending into a hollow interior thereof mounted to a wall area at least four feet above a ground area. The hollow interior has an upper opening and a lower opening. The lower ... | 10/20/1998 |
| 5787517 | Standing urinal A standing urinal includes an elongate, generally cylindrical housing having an elongate opening in a side of the housing. The opening extends radially a suitable but not exaggerated distance to provide side wall components of the housing, and the housing... | 08/04/1998 |
| 5634217 | Urine disposal device A method an apparatus for disposing of urine is described comprising a funnel-like basin connected to a pump housing. The housing contains a fluid pump connected to the drain of the basin and activated by a fluid pressure sensor when the fluid pressure in... | 06/03/1997 |
| 5313673 | Electronic flush valve arrangement A sensor for a flushing device having an electric solenoid operated flush valve. The sensor includes a control box, a first radiation emitting source mounted in the control box, a radiation detector adapted to detect reflected radiation from the first rad... | 05/24/1994 |
| 5269028 | Automatic flushing apparatus for urinals An automatic flushing apparatus includes an electromagnetic valve, an electrical controlling apparatus in conjunction with the electromagnetic valve for effecting an automatic flushing operation. A first closed tank communicates to the outlet tube of the ... | 12/14/1993 |
| 5259073 | Water closet flushing apparatus 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 pre... | 11/09/1993 |
| 5235706 | Programmable urinal flushing delay circuit An apparatus for controlling flushing of a toilet device detects use of the toilet device and compares the actual number of uses against a preset number of uses which are permitted before flushing of the toilet device. When the actual number of uses equal... | 08/17/1993 |
| 5054132 | Flush control system for plumbing fixture A flush control system for a plumbing fixture is disclosed. The plumbing fixture includes electrical components which electrically operate a flush valve and are housed in the body of the plumbing fixture. A cover, which is normally closed, activates an el... | 10/08/1991 |
| 4793588 | Flush valve with an electronic sensor and solenoid valve The invention relates to flush valves in which an external operating handle is eliminated. An electronic sensor, solenoid valve and a solenoid contained within a single unit to operate a flush valve are provided which is either built into the flush valve ... | 12/27/1988 |
| 4688277 | Automatic faucet apparatus An automatic faucet apparatus comprises a drive control means wherein an intermediate drive section coupled to a motor as normally resiliently biased toward the original position is interlocked to a driving shaft coupled to a valve member with a play invo... | 08/25/1987 |
