Matches 1 - 50 out of 332 1 2 3 4 5 6 7 >


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US20150040989 AUTOMATIC EXCESS WATER FLOW SAVING SYSTEM  
An automatic excess water flow saving system reduces the water loss by water outlets in houses and other water consuming installations. The system controls the water flow through an outlet by...
US20120031498 Water supply system and method  
A system for supplying hot and cold water to an apartment/house. Recycling water from the hot into the cold water pipe comprises a faucet having adjustable first and second valves installed in the...
US20150027565 WATER SUPPLY MONITOR  
A water flow monitor for detecting water flow comprising: a control panel, where the control panel depicts control mechanisms associated with water flow monitoring; a pipe receptacle on a bottom...
US20110114202 Water Flow Monitor  
A system may include a controllable shut-off valve disposed in a water supply line and a water flow sensor disposed in the water supply line. A controller may be coupled to the shut-off valve and...
US20110073189 WATER SHUT OFF WITH FLOW SENSOR EMERGENCY SHUT DOWN  
An apparatus and method for monitoring and shutting off water flow through a conduit in which a user sets a time period for which water may flow through the apparatus. Once the time limit has been...
US20150101677 INTEGRATED PRESSURE TRANSDUCER IN A LATCHING VALVE  
A vapor purge system having a tank isolation valve and a canister vent valve, where each valve includes a latching mechanism for maintaining the valves in an open position, and a diagnostic test...
US20130167843 PIEZOELECTRIC BLOWER PILOTED VALVE  
This disclosure describes systems and methods for piloting a pneumatic valve using one or more piezoelectric blowers. According to embodiments, the one or more piezoelectric blowers may be coupled...
US20110132474 Back Flow Prevention System  
A system that prevents the backflow of fluid is disclosed. The system comprises a housing, two rubber flaps that are attached in such a way to create a one-way valve, and a water sensor. The flaps...
US20100000615 LEAK DETECTION AND SHUTOFF SYSTEM  
An automatic leak detection and shutoff system for plumbing systems that detects a flow of water that endures longer than a user sets as normal, and shuts off the flow of water when it detects...
US20130153041 GAS VALVE WITH OVERPRESSURE DIAGNOSTICS  
This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one example, a gas valve assembly may include a valve body with one or more valves movable between...
US20140367616 SAFETY MEANS AGAINST PRESSURE EXCEEDANCE  
A safety means for protecting a plant section located on the pressure side of a jet compressor connected with a propellant system against the exceedance of an admissible pressure, comprising a...
US20130061932 DUAL POSITIVE DISPLACEMENT PUMP PRESSURE REGULATING CONTROL  
A hydraulic system, including fluid flow generated by a primary pump and a secondary pump, utilizes a regulator control assembly to control fluid flow from each of the primary and secondary pumps...
US20150224620 PRESSURE REGULATOR AND POLISHING APPARATUS HAVING THE PRESSURE REGULATOR  
A pressure regulator capable of improving both stability of pressure and responsiveness to an input signal is disclosed. A PID controller is configured to stop producing a corrective command value...
US20130319546 PRESSURE RELIEF VALVE  
A pressure relief valve includes an outer frame, a ferromagnetic cylinder, a plastic air faucet, an electrical coil module and a spring. The plastic air faucet has a first end extending through a...
US20110000554 RAW MATERIAL SUPPLY DEVICE  
A raw material supply device (105) includes an introduction pipe (152a) which introduces a carrier gas into a raw material vessel (151), a transport pipe (152b) which transports a source gas fed...
US20110162727 Leak Detection System for Humidifier  
An electronic leak detection system for home humidifier using the duct air conditioning system. The leak detection system uses a simple sensor in a water collection tray under the humidifier to...
US20090033055 PNEUMATIC PROPORTIONING SYSTEM FOR VEHICLE AIR SPRINGS  
A pneumatic proportioning system for heavy-duty vehicle air springs includes an air supply, a height control valve and a solenoid valve in fluid communication with one another and with the air...
US20150104722 FREEZE-TOLERANT VALVE  
A valve for reducing the likelihood of ice-related blockage in a fuel cell and methods for starting a fuel cell system. The valve includes a valve plate and coupling plate that are cooperative...
US20140087629 PRESSURE REGULATOR, POLISHING APPARATUS HAVING THE PRESSURE REGULATOR, AND POLISHING METHOD  
A pressure regulator includes: a pressure-regulating valve configured to regulate pressure of a fluid supplied from a fluid supply source; a first pressure sensor configured to measure the...
US20080173840 Electropneumatic Cartridge Valve in Particular For Use as a Pilot Valve in a Slimline Pneumatic Valve for a Compact Valve Unit  
Disclosed is a pneumatic cartridge valve, especially for use as a pilot valve in a slimline pneumatic valve (1) for a compact valve unit. Said pneumatic cartridge valve has a drive part (2a)...
US20130068313 Electronic Pressure Independent Controller For Fluid Flow Control Valve  
A flow valve with an integral pressure-independent fluid flow controller for controlling the flow of fluid and corresponding methods for controlling fluid flow are provided. The flow valve...
US20080289691 Mass Flow Rate Control System  
A dosage system for feeding a fluid (A) to a static mixer (1), said system comprising a tank (2) containing said fluid (A) at a predetermined pressure, a fluid passage (3) connecting said...
US20110203672 Dual valve method and apparatus for limiting toilet water flow  
A dual valve assembly for limiting flow into a toilet tank comprises a fill valve, such as a float valve or ball cock valve, and a piston valve positioned between a water supply line and the fill...
US20150192931 VALVE POSITIONER WITH OVERPRESSURE PROTECTION CAPABILITIES  
A method of limiting control pressure provided to an actuator of a valve coupled to a valve positioner, a drive signal is provided to a pneumatic stage of the valve positioner. The pneumatic stage...
US20150176718 Smart Valve and Related Control Method  
A smart valve and the related control method to solve the problem of energy waste in current heating and air-conditioning systems due to the inconvenience of valve adjustment. The smart valve is...
US20120291886 WATER VOLUME AND PRESSURE CONTROL SYSTEM  
A system for remotely controlling the supply and pressure of water to a building includes one or more sensors for detecting the presence of water in undesirable locations, a water flow and...
US20140326336 Valve, In Particular A Pressure Regulating Valve Or Pressure Limiting Valve  
The invention relates to a valve (1), in particular a pressure regulating valve or a pressure limiting valve four controlling a pressure of a medium (3) that flows through the valve (1),...
US20110240145 ISOLATION VALVE WITH FAST DEPRESSURIZATION FOR HIGH-PRESSURE FUEL TANK  
An isolation valve includes a flow restrictor disposed in a passage and having a piston with a first orifice and a depressurization valve with a second orifice. The valve also includes a solenoid...
US20110008166 HYDRAULIC STATION AND METHOD FOR CONTROLLING PRESSURE IN A HYDRAULIC SYSTEM OF A WIND TURBINE  
A hydraulic station in a hydraulic system of a wind turbine includes a tank for storing working fluid, first and second pumps fluidly connected to the tank, first and second flow paths extending...
US20150059875 Temperature Control Valve Actuator Assembly  
A control valve actuator assembly having internally configured pressure transducers and associated pressure channels internally integrated within the yoke of the actuator assembly.
US20110308621 SERVO VALVE  
The invention provides a servo valve with a main piston and a servo piston. The servo piston controls a pressure in a servo chamber and thereby controls movement of the main piston based on a...
US20080302987 IRRIGATION SHUTOFF DEVICE  
An irrigation shutoff device (1) that is operational with and fluidly connected to a sprinkler (44) or irrigation valve (37) wherein the irrigation shutoff device (1) has a propeller (10), a coil...
US20120301340 ELECTROMAGNETIC FLOW RATE CONTROL VALVE AND HIGH-PRESSURE FUEL SUPPLY PUMP USING THE SAME  
High-response and high-power electromagnetically driven flow rate control valve with flange portion forming an attracting surface on an anchor, a first peripheral surface portion having a diameter...
US20070084512 Marine vessel water intake control system, device, and method  
A system for providing water to a marine vessel can include a water source for providing water to marine vessels, a water system of a marine vessel, and a flow control mechanism. The flow control...
US20120152367 VALVE ARRANGEMENT AND METHOD FOR OPERATING A VALVE  
A valve arrangement is provided, (1) comprising: a valve (2) for controlling a flow of heating or cooling fluid through a heat exchanger, an actuator (12) for actuating said valve (2), control...
US20050034764 Patient support system  
A pressure control apparatus for use in a bed including a pressurized air source, an inflatable air sack, and an independently inflatable cell located adjacent the inflatable air sack. A...
US20080140260 Controller gain scheduling for mass flow controllers  
A mass flow controller having a feedback controller gain, comprises: a sensor configured so as to sense the flow of fluid through controller; a valve arranged so as to adjust the flow of fluid...
US20050016592 Process control valve  
A “plug and play” process control valve 10 providing closed loop feedback control has a built in microprocessor 40, stepper-motor 20, a position encoder, a valve body having an inlet 11 and an...
US20080000530 GAS FLOW CONTROL BY DIFFERENTIAL PRESSURE MEASUREMENTS  
A gas flow comparator comprises a gas control mounted on a gas tube to set a gas flow or pressure of a gas passing thorough the gas tube. A principal flow splitter comprises an inlet port...
US20130112290 Ventilation Arrangement For A Fuel Tank  
A ventilation arrangement for the head space of the fuel tank of a vehicle comprises a switchable main valve intended for adjusting an arbitrary pressure in the head space of the tank. By way of...
US20110079297 Servo Valve  
The present invention relates to a two-stage electrohydraulic servo valve with a first stage, which operates as pilot stage and includes a movable nozzle tube, and a second stage which operates as...
US20130180606 FLOATING ACTION TYPE SERVO-VALVE  
The present invention relates to a valve, and more specially relates to a floating action type servo-valve used for fluid control, comprising a valve body, a torque motor, a pilot stage and a...
US20140286757 STEAM VALVE CONTROL DEVICE AND STEAM TURBINE SYSTEM  
A steam valve control device of this embodiment controls a steam valve. The steam valve has: an upper cover in whose through hole a bush is installed; and a valve rod which is installed so as to...
US20050126635 Smart flow anomaly detector  
The present invention provides a smart flow anomaly detector for a liquid distribution system comprising a flow measuring device that derives a liquid flow value for both automatically operated...
US20120132296 Bathroom flushers with novel sensors and controllers  
A bathroom flusher includes a body having an inlet in communication with a supply line and an outlet in communication with a flush conduit, a valve assembly in the body positioned to close water...
US20130000753 VALVE SIGNATURE DIAGNOSIS AND LEAK TEST DEVICE  
A valve signature diagnosis and leak testing device includes a spool valve operatively connected to a pilot valve, the pilot valve being configured to position the spool valve to one of an open...
US20130174915 VALVE POSITIONING SYSTEM WITH BLEED PREVENTION  
A valve positioner system with zero bleed at steady state is disclosed. The system has a pilot valve, the operation of which is controlled by an electronic circuit powered from a signaling and...
US20110132467 METHOD AND DEVICE FOR CONTROLLING THE PRESSURE AND/OR FLOW RATE OF FLUID  
A method for controlling the pressure and/or the flow rate of a fluid includes withdrawing flow energy from a fluid flowing through a pipeline (15). This energy is converted at least partially...
US20090078324 GAS-PANEL SYSTEM  
The invention involves the introduction of a gas-flow restrictor and reservoir upstream of a mass flow controller (MFC) in a gas-panel stick. The restrictor and reservoir components function to...
US20050000570 Combination manual/pneumatic shut-off valve  
A combination manual/pneumatic shut-off valve (11) is disclosed. The valve comprises a housing (13); a valve chamber (17) which is disposed in the housing and which has a fluid inlet (19) and a...

Matches 1 - 50 out of 332 1 2 3 4 5 6 7 >