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| Number | Title | Issue Date |
| 8100141 | Water supply control assembly with automatic shut-off and duty cycle reset A water supply control assembly is disclosed for cutting off the supply of water to a house or building in the event of excessive water consumption. In one embodiment, a valve is secured to a distribution conduit in fluid communication with a pressurized source of f... | 01/24/2012 |
| 7913714 | Check valve and shut-off reset device for liquid delivery systems A check valve assembly which in an open position allows liquid to flow in one direction through the assembly including a moving sealing member which engages a seal to prevent liquid flow in a second opposite direction. The sealing member may be moved into engagement... | 03/29/2011 |
| 7658203 | Fluid sensing shut-off devices with timer and methods of operation Fluid sensing shut-off devices with timer and methods of operation to shut off fluid flow if a primary shutoff valve sticks in the on condition. An embodiment is disclosed using a microphone to sense fluid flow, with a microprocessor periodically awakening from a sl... | 02/09/2010 |
| 7509975 | Fluid sensing shut-off devices with timer and methods of operation Fluid sensing shut-off devices with timer and methods of operation to shut off fluid flow if a primary shutoff valve sticks in the on condition. An embodiment is disclosed using a microphone to sense fluid flow, with a microprocessor periodically awakening from a sl... | 03/31/2009 |
| 7357150 | Safety shut-off device A safety shut-off device for sections of fluid circuits, which in case of damage or the like, have to shut off from each other on safety considerations. The safety shut-off device includes at least two valves connected to each other via a control chamber. A first pr... | 04/15/2008 |
| 7299814 | Method and apparatus for selectively shutting off the flow of water to a building Embodiments disclosed herein relates in part to selectively shutting off the flow of water through a water supply pipe to a building, such as in the event of a broken water pipe. The embodiments disclosed herein also optionally discontinue electrical power to a wate... | 11/27/2007 |
| 7287444 | Transmission pressure modulation by orificed check valve Disclosed herein are systems and methods of controlling the pressure in a modulation pressure circuit through transmission fluid through an orificed check valve supplementary or in substitution of a computer-controlled pressure regulation solenoid. Detailed informat... | 10/30/2007 |
| 7231934 | Shut-off actuator with gas generation device A shut-off device, in particular for application in the extraction of natural gas and mineral oil, has a shut-off housing (3) comprising an admission channel (2) and in which a shut-off organ (4) is supported in an adjustable manner relative to ... | 06/19/2007 |
| 7207348 | Machine comprising a safety valve for the supply of pressurised fluid The safety valve comprises a body and an obturator movable in the body between a closed position (FIG. 2) and an open position (FIG. 3). It also comprises means for displacing the obturator in order to displace it towards its closed position when the p... | 04/24/2007 |
| 7077376 | Water saver valve The present invention relates to a valve designed to be in series with a toilet water supply line and the inlet of a toilet tank so that water which is flowing into the tank must flow through the valve. The valve includes a shutoff spool that is actuated by an inten... | 07/18/2006 |
| 6467694 | Fail-safe structure cooling system A method and apparatus for applying a thin film of water to a solar energy impacted surface, especially a building, while frequently testing itself for leaks or breaks in the piping system, testing for failure of one or more valves, or malfunction of the ... | 10/22/2002 |
| 6460564 | Automatic-locking shut-off valve for liquid suction systems A rotary-plug shut-off valve (10) of the type having a valve chamber (20) with multiple inlets includes: an actuator chamber (26); a base member (36) forming (a) an end of the actuator chamber (26) and (b) a guide (44); a vacuum-reactive member (48) movab... | 10/08/2002 |
| 6186167 | Emergency shutdown test system An emergency shutdown system for a process control system includes an emergency shutdown (ESD) valve and an associated valve actuator. An emergency shutdown (ESD) controller provides output signals to the ESD valve in the event of a failure in the process... | 02/13/2001 |
| 6103079 | Anti-leakage apparatus An anti-microleakage apparatus is used in a sputtering deposition equipment. A metallic object, such as a wafer, is put in a process chamber. A cryo-pump is used to vacuumed the process chamber. A heater to heat up the process chamber to allow a thermal r... | 08/15/2000 |
| 5971011 | Water shut-off valve and leak detection system An apparatus to permit or stop the flow of water through a conduit is described as having a microprocessor which contains a real time clock, day of the week indication, and an elapsed time clock. Data relating to the quantity of water flowing at any given... | 10/26/1999 |
| 5927316 | Safety cut-off system A system for transferring a product from a source which includes a safety cut-off feature for preventing the transfer of the product. The system includes a tubular member adapted to handle the transfer of the product therethrough, a remote connector, a pr... | 07/27/1999 |
| 5893388 | Waterflow monitoring device A water leak detection valve system is provided including a water inlet pipe for receiving an unlimited amount of water. Also included is a water outlet pipe for supplying various water appliances within a building with water. A water valve is connected b... | 04/13/1999 |
| 5829470 | Differential volume sensing hydraulic control A valve assembly senses the cumulative volume of hydraulic fluid that has passed to an actuator and senses and subtracts from that cumulative volume the volume of return fluid that has passed from the actuator. When the difference between the volumes exce... | 11/03/1998 |
| 5823235 | Emergency shut-off mechanism for propane delivery systems and the like A safety shut-off system especially adapted for propane delivery trucks and the like utilizes a pressure differential switch to immediately close the outlet valve of the cargo tank in the event that the differential between an initial reference pressure i... | 10/20/1998 |
| 5771920 | Domestic water valve assembly A domestic water valve assembly protects against water leaks by closing a valve if a leak is detected. A leak is detected when a water flow rate falls below a predetermined low flow rate for a length of time longer than a predetermined time-out period or ... | 06/30/1998 |
| 5640990 | Flexible conduit failure safety valve A safety valve for precluding leakage of a fluid from a ruptured conduit. The inventive device includes a sensing conduit having a center bore and a matrix of bores concentrically positioned about the center bore. A valve is positioned in fluid communicat... | 06/24/1997 |
| 5624551 | Hydraulic safety circuit for a hemodialysis apparatus A hemodialysis apparatus is supplied with dialysis fluid or a dialysis fluid component through a supply loop conduit 12. A shut-off device 22, such as a magnetic valve, is arranged between the apparatus and the supply conduit 12. A buffer volume is enclos... | 04/29/1997 |
| 5607038 | Hydraulic control valve assembly A hydraulic control valve assembly is described comprising a cut-off valve, a control valve and structure for connection to at least a supply line, a hydraulic apparatus line and a return line. The assembly is constructed and arranged such that the cut-of... | 03/04/1997 |
| 5535777 | Gas flow safety assembly A gas flow safety valve assembly having a main housing of generally solid rigid construction with a main interior chamber divided into an upper compartment and a flow through compartment by a primary diaphragm. Further, the main housing includes an inlet ... | 07/16/1996 |
| 5503175 | Water safety system A water safety valve, system and method for detecting and shutting off water flow due to leaks or breaks in a water line in which the water flow is at a very low rate on the order of three to five fluid ounces per minute but having the capability of passi... | 04/02/1996 |
| 5365970 | Gravity flow chemigation system and low level shutoff valve A gravity flow chemigation system (10) is disclosed which generally consists of chemical supply tank (37), in which chemical (29) is contained, a supply line (37) connected to the bottom of chemical supply tank (36), and a low-level shutoff valve (11) sus... | 11/22/1994 |
| 5125433 | System for electronically controlling the temperature of water delivered to a bath, shower and the like A system for selectively delivering cold, lukewarm, warm or hot water to a bath, shower and the like is controlled by water temperature function switches arranged in cascade series at a control panel in order of priority descending to hot water. When a wa... | 06/30/1992 |
| 5107891 | Safety device for gas welding A safety device for gas welding has a cylindrical main body having a flow path for an inflammable gas. A cylindrical cover is mounted on the outer periphery of the main body in such a manner that it can reciprocate on the outer periphery. The main body is... | 04/28/1992 |
| 5014759 | Vehicle wheel having valve means to prevent misuse A vehicle wheel that includes a valve which has a check device, with the wheel being intended for use with a pneumatic tire that even when operating as a tire which is flat or has otherwise lost pressure permits great distances to be covered at a reduced ... | 05/14/1991 |
| 4926901 | Fluid supply line flow control device The present invention deals broadly with the field of plumbing. More narrowly, however, it deals with apparatus for controlling flow through a fluid supply line. The preferred embodiment of the invention is directed to a mechanism for automatically termin... | 05/22/1990 |
| 4830045 | Breaker valve A main fluid passageway is provided in a main valve body between first and second ports formed and an auxiliary passageway having its opposite ends closed is also formed in the valve main body so as to intersect the main passageway. A spool is slidably mo... | 05/16/1989 |
| 4817664 | Gas pressure regulator In a gas pressure regulator a switch valve is provided in a throttle nozzle between an inlet passage and a pressure sensing chamber containing a diaphragm controlling a lever arrangement. The pressure regulator is capable of both pressure reduction and au... | 04/04/1989 |
| 4813492 | Low pressure shut off device contained within a pneumatic tool The invention provides a low pressure shut off device contained within a pneumatic tool that senses the air pressure of an air stream supplied to a pneumatic motor and shuts off the air flow when the pressure falls below a predetermined level set to maint... | 03/21/1989 |
| 4807661 | Fluid control valve An apparatus for controlling the flow of fluid through a conduit is disclosed. The conduit permits normal flow of fluid through the conduit and detects abnormal flow of fluid which is due to a catastrophic failure of the fluid system or is due to intermit... | 02/28/1989 |
| 4721128 | Safety Shutoff Valve--electromechanical A pressure chamber through which the fuel in the fuel line passes, having a diaphragm moving to advanced position by the pressure in the chamber. A PE cell is arranged with light rays passing through the chamber and when the diaphragm is retracted it brea... | 01/26/1988 |
| 4691893 | Fail safe gate valves and actuators therefor There are disclosed several embodiments of a fail safe gate valve and actuator having means for yieldably urging the gate from one position to which it is moved under one or more controlled conditions to its other position upon failure of one such conditi... | 09/08/1987 |
| 4650154 | Blanking cover for pipe A blanking cover for a pipe comprises a plate able to close the pipe by tilting or rocking under the action of gravity, about a pivot pin to which it is fixed. A part is fixed to the pin, and an electromagnet able to retract the part and fixed to another ... | 03/17/1987 |
| 4589435 | Water shutoff valve A water shutoff valve is disclosed in the preferred embodiment comprising a cylindrical body having a valve disk and water flow sensor therein. The sensor is operatively connected to a timer which automatically resets to zero upon interruption of water fl... | 05/20/1986 |
| 4197867 | Relay indicator valve A pneumatic relay valve is actuated by a pressure differential determined by the respective surface areas of two opposing surfaces of a piston moveable within the valve body. A first pressure (pilot signal) to be monitored maintains the piston member of t... | 04/15/1980 |
| 4182369 | Spool valve and pilot interface assembly Valve means associatable with free traveling spherical means are sealing engageable onto and wipable off of companion seats to selectively control flow. A spool permits selective movement of the head means to the seat means and selective engagement of the... | 01/08/1980 |
