| Patent application number | Description | Published |
|---|
| 20090320199 | CONTAINMENT APPARATUS FOR TOILETS - A spray system, which reduces contamination caused by toilet flushing, is activated during a flush cycle to contain waste matter and prevent escape thereof from the bowl. The system is mounted above the level of water in a toilet and includes an aperture that creates a spray and is fluid communication with the flush valve of the toilet. Accordingly, each time the flush valve is activated, a portion of the water provided to the toilet is directed to the aperture to create a spray to minimize escaping effluent. | 12-31-2009 |
| 20100269248 | DUAL FLUSH ELECTRONIC FLUSH VALVE - A flush valve utilizes a sensor to determine how close a user is to a toilet to determine whether to utilize a longer flush with more water to remove, typically, solid waste or a shorter flush with less water to remove, typically, liquid waste. If a user is in a zone that is closer to the toilet, a longer flush is deemed necessary and if a user is in a zone farther from the toilet, a shorter flush is deemed necessary. Users sometimes move between one zone or the other and the flush valve determines whether a user spends more or less time in the zones to determine whether to provide a shorter or a longer flush. | 10-28-2010 |
| 20110226357 | FLUSH VALVE ANTI-BACKFLOW CARTRIDGE - A flush valve has a valve body having an inlet and an outlet, a piston disposed in the valve body between the inlet and the outlet, a cartridge disposed in the outlet and a plurality of check valves disposed serially within the cartridge for preventing backflow through the outlet and wherein vacuum effects are minimized. | 09-22-2011 |
| 20110226977 | FLUSH VALVE - A flush valve has a valve body having an inlet and an outlet, and a piston disposed in the valve body between the inlet and said outlet to regulate flow through the valve body. The piston has a shoulder. A neck depends from the shoulder and has a smaller perimeter than the shoulder. And, a flange depends from the neck and has a larger perimeter than the neck. Better flow characteristics of fluid about the shoulder, neck, and flange minimize noise coming from the valve and increase reliability thereof. | 09-22-2011 |
| 20110226978 | FLUSH VALVE SEAT - A flush valve has a valve body having an inlet and an outlet, and a piston disposed in the valve body between the inlet and the outlet. A surface is disposed in the valve body for seating the piston. The surface tapers inwardly as it passes into the outlet wherein the taper improves the flow characteristics of fluid passing by the taper thereby minimizing water hammer and leakage therethrough. | 09-22-2011 |
| 20110226979 | FLUSH VALVE PRESSURE BALANCE - A flush valve has a valve body having an inlet and an outlet. A piston is disposed in the valve body between the inlet and the outlet. A piston cap is disposed within the valve body and has a wall along which the piston is guided. A groove is disposed in the piston cap wall for equalizing pressure on sides of the piston translating therein. The groove has a shallow, semicircular shape whereby a possibility that fluid flow therethrough is diminished is minimized. | 09-22-2011 |
| 20110265879 | SECONDARY BLEED VALVE FOR DUAL FLUSH VALVE - An apparatus for providing flushing fluid at different rates has a valve for controlling flow through a housing, the valve having a reset area to close the valve, a first bleed valve for constantly providing high pressure fluid to the reset area through a first path, a second bleed valve for providing high pressure fluid to the reset area through a second path, and an actuator. The actuator has a first position in which fluid is prevented from escaping from the second path, a second position in which fluid is allowed to escape from the second path and the second bleed valve is activated, and a third position in which fluid is allowed to escape from the second path and the second bleed valve is deactivated. If the second bleed valve is activated, the first bleed valve causes the reset area to close the valve in a first time period and if the second bleed valve is not activated the first and second valves cause the reset area to close the valve in a second time period wherein the second time period is less than the first time period. | 11-03-2011 |
