"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 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 |
| 6748970 | Pilot operated water conservation valve and actuator A fluid diaphragm valve and interconnected pilot valve apparatus for control flow of fluid discharge from a pressurized fluid distribution system. The apparatus has a primary valve with an inlet adapted to receive fluid under pressure, and an outlet adapted to disch... | 06/15/2004 |
| 6612536 | Remote shut-off valve This invention relates to a remote shut-off valve, and in particular to a valve for the remote shutting-off of a fluid such as a main water supply. The remote shut-off valve comprises a diaphragm valve and a pilot valve which are connected together by way... | 09/02/2003 |
| 6360768 | Control apparatus for pneumatic evacuation and water valves, operated by vacuum pressure A control apparatus for pneumatic evacuation and/or water valves, operated by vacuum pressure and used for a vacuum sewerage system, particularly for pneumatically operated sanitary appliances, such as vacuum closets, urinals or wash basins. The control a... | 03/26/2002 |
| 6299127 | Solenoid valve piston A flush valve for use on toilet devices such as urinals and water closets includes a body having an inlet and an outlet. There is a valve seat in the body and a valve member movable within the body toward and away from the valve seat to control water flow... | 10/09/2001 |
| 6298872 | Pilot operated water conservation valve actuator A fluid diaphragm valve and interconnected pilot valve apparatus for control flow of fluid discharge from a pressurized fluid distribution system. The apparatus has a primary valve with an inlet adapted to receive fluid under pressure, and an outlet adapt... | 10/09/2001 |
| 6176439 | Deadman control method and apparatus An enhanced mixing equipment system including a power supply, an actuatable valve, the actuatable valve connected via a line between the power supply and a storage vessel, an actuatable discharge/mixing valve attached to a portion of the storage vessel, t... | 01/23/2001 |
| 6123315 | Apparatus and method for reducing water use A fluid diaphram valve and interconnected pilot valve apparatus for control flow of fluid discharge from a pressurized fluid distribution system. The apparatus has a primary valve with an inlet adapted to receive fluid under pressure, and an outlet adapte... | 09/26/2000 |
| 5361426 | Hydraulically controlled pressurized water closet flushing system A pressurized water closet operating system comprises an accumulator vessel having a flush valve assembly mounted internally thereof both of which are connected at all times to a source of water under pressure. A remote control valve hydraulically conditi... | 11/08/1994 |
| 5125621 | Flush system A replacement apparatus (50) for converting a manual flush mechanism to automatic operation includes a partition base (76) secured to a replacement cap (68) that forms two spaced-apart openings (96 and 98). A valve operator (58) is so mounted on the repla... | 06/30/1992 |
| 4561466 | Valve for supplying flow media The valve for supplying a flow medium to a flow medium pipe which alternatingly carries different flow media, in particular to the flow medium pipe of a converter for treating the contents of a converter with various gaseous flow media, exhibits a chamber... | 12/31/1985 |
| 4391183 | Hydraulic blocking valve The invention relates to a hydraulic blocking valve, a so-called holding valve (10), the shutting-off member of which consists of a movable ball (16) coacting with a seat (17) in an inlet chamber (24). The space (15) on the side of the ball opposite its s... | 07/05/1983 |
| 4109895 | Remote actuated metering valve A remote actuated metering valve system for supplying water to a washing fixture includes a main metering valve and at least one remote actuating relief valve connected to the main valve by tubing. The main metering valve has an inlet and an outlet with a... | 08/29/1978 |
| 4078614 | Fire extinguisher A fire extinguisher includes a pressure vessel containing an extinguishing agent and pressurized gas and a valve remotely operated by a manual control at the outlet end of the delivery hose for controlling the discharge of the extinguishing agent from the... | 03/14/1978 |