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7403839 |
Water shut-off system
A moisture monitoring and control system comprising: 1) a plurality of moisture sensors; 2) one or more local or remote control stations capable of monitoring and controlling each of the individual...
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7401624 |
Method for monitoring a pipeline and position regulator for a control valve
The invention relates to a method for monitoring a pipeline in order to detect the slow reduction of the free inner cross-section by means of the position of a control valve in the pipeline. When...
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7398795 |
Excess flow valve
An excess flow valve includes: a valve that opens and closes a flow path; a solenoid that keeps the valve in an opened state; a pressure detector detecting the primary-side pressure of the valve;...
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7389787 |
Closed loop additive injection and monitoring system for oilfield operations
A system is provided that monitors at the wellsite injection of additives into formation fluids recovered through wellbores and controls the supply of such additives from remote locations. The...
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7387135 |
Valve assembly having rigid seating surfaces
A valve assembly including a valve body having a bore and a port extending to the bore, an orifice member received in the bore and having an end wall and a side wall, and wherein the end wall...
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7383851 |
Closed loop pressure control system and electrically operated pressure control valve with integral pressure sensor and method of making same
A solenoid operated valve has a pressure transducer sensing valve outlet pressure integrally formed in the valve body, such as by overmolding. Upon connection of the transducer and solenoid to an...
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7380568 |
Water flow controller
An apparatus for controlling water flow is provided. The apparatus is a novel electronic water controller capable of operation using a battery-type power source, and providing for achievement of...
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7380564 |
System and method for a mass flow controller
A system and method for controlling a mass flow controller to have a constant control loop gain under a variety of different types of fluids and operating conditions, and for configuring the mass...
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7373943 |
Self-contained breathing apparatus facepiece pressure control method
An electro mechanically-assisted control system for use in a second-stage regulator. Regulator control assembly ( 20′ ), also referred to as all-electronic (AE) assembly ( 20′ ), includes an...
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7370666 |
Power system with computer-controlled fuel system
The present invention is a fuel-control system for a turbine which includes a programmable logic controller. The controller manages utility and stored natural gas sources using a surge tank and...
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7363182 |
System and method for mass flow detection device calibration
Systems and methods for correcting measurements of fluid flow using device-specific information to compensate for differences between individual devices of the same design. In one embodiment, a...
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7360551 |
Method and apparatus for providing a determined ratio of process fluids
A fluid flow control system that includes a fluid inlet to receive a flow of process fluid and a plurality of fluid outlets. The plurality of fluid outlets include a first fluid outlet and at least...
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7353841 |
Relative pressure control system and relative flow control system
Provided is a relative pressure control system has a simple configuration, but enables accurate regulation of a division ratio of an operation gas, and concurrently makes it possible to securely...
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7352287 |
Pneumatic controller
A pneumatic controller for controlling a device.
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7335396 |
Methods for controlling mass flow rates and pressures in passageways coupled to reaction chambers and systems for depositing material onto microfeature workpieces in reaction chambers
Methods, apparatuses, and systems for controlling mass flow rates and pressures in passageways coupled to reaction chambers are disclosed herein. In one embodiment, a method includes controlling a...
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7334602 |
Apparatus for controlling flow rate of gases used in semiconductor device by differential pressure
Provided is apparatus for controlling flow rate of gases used in semiconductor device by differential pressure by generating differential pressure in a fluid path. A differential pressure...
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7318447 |
Pressure loaded pilot system and method for a regulator without atmospheric bleed
A pressure loaded pilot valve system and method for a regulator valve is provided. The system includes a regulator valve connecting an inlet line to an outlet line, a servo control valve assembly,...
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7314059 |
Systems and methods for controlling pressure of fluids
Systems and methods for using a dual-path fluid routing system that uses a flow restriction device to enhance temperature and pressure control of fluid are provided. Systems and methods for using a...
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