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8161993 |
Subsea system and method for protecting equipment of a subsea system
A subsea system comprises a wellbore within a reservoir, equipment downstream of the wellbore, and a barrier connected to the equipment. The equipment is rated for a maximum pressure that is less...
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8056643 |
Systems and techniques to actuate isolation valves
A tool that is usable in a well and may include an operator, a switch, a resilient device and an indexer. The switch may be configured to selectively communicate a first force to the operator,...
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8047225 |
Method for water hammerless opening of fluid passage, and method for supplying chemical solutions and device for water hammerless opening for which the method is used
The water hammerless opening device comprises an actuator operating type valve installed on the fluid passage, an electro-pneumatic conversion device to supply the 2-step actuator operating...
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8011382 |
Bi-modal bleed valve assembly for gas turbine engine
A bi-modal bleed valve assembly is provided. In one embodiment, the bi-modal bleed valve assembly includes a housing assembly having a bleed inlet, a bleed outlet, a control servo port, and a...
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7992490 |
Automatic by-pass control system for meat injection machine and method of using same
A by-pass control system for a meat injection system has a variable speed pump that transports fluid to a meat injection machine. Excess fluid is transported to a by-pass control valve. The valve...
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7874834 |
Air fuel ratio sensor of incinerator
Disclosed is a combustion apparatus using an air fuel ratio sensor, which detects the operation of the air fuel sensor based on pressure of gas and air introduced into a combustion chamber and...
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7784488 |
Valve for allocating available fluid to high priority functions of a hydraulic system
A hydraulic system has high priority hydraulic functions connected to a primary supply line that receives pressurized fluid from a source and low priority hydraulic functions connected to secondary...
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7775237 |
Fluid flow control regulator
A fluid flow regulator (20) comprising: a fluid inlet port (34) and a fluid outlet port (54); at least one open-faced flow control channel (60) defined by a planar bottom (62) and two sidewalls...
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7766030 |
High pressure transducer
A high pressure transducer is disclosed. The transducer includes a supply inlet configured to provide a gas supply to the high pressure transducer at a supply pressure and a pressure divider...
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7647940 |
Device and method for pneumatic valve control
An apparatus for controlling a valve including an enclosure that defines first and second chambers, an indicator proximate the first and second chambers, an operating media distribution system that...
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7621293 |
Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device
A multi-functional or versatile emergency shutdown valve controller may be used in various different emergency shutdown configurations to enable the testing of different types and configurations of...
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7537019 |
Systems and methods to slowly reduce the pressure in a pressure chamber over time
Systems and methods for performing a stepwise depressurization of a high-pressure fluid (liquid) filled chamber are shown and described. At least two valves are controllably opened and closed in a...
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7533690 |
Multi-functional regulator
A multifunctional regulator provides a housing having an inlet passage joined with an outlet passage through a poppet valve. The housing has a control diaphragm separating the control chamber into...
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7491321 |
Oxidation tank control valve assembly and systems and methods for replenishing a charge of oxygen-containing gas within an oxidation tank
Contaminants are removed from fluid in a system where the fluid is sprayed into an air head at the top of a tank through a diffuser and withdrawn through a pick-up tube. A solenoid valve operates...
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7484522 |
Method to control starter/generator cooling fuel flow during engine starting
The present invention provides a relatively simple way to automatically turn on and off the fuel to a starter/generator cooling system during engine start. The present invention takes advantage of...
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7469706 |
Adjustable pressure double latching valve
Methods and devices for maintaining a minimum pressure of calibration gas, such as in an emission testing system or a similar arrangement, using a double latching valve (DLV). The DLV comprises a...
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7434477 |
Methods and apparatus for pressure compensation in a mass flow controller
Performance of mass flow controller may be vulnerable to pressure transients in a flow path to which the controller is coupled for the purpose of controlling the fluid flow. A system and method are...
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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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7367349 |
Method for opening tank shut-off valves in gas feeding systems with connected tanks
A method for opening tank shut-off valves in a fuel cell system that includes multiple pressurized tanks. A flow control device is positioned in a supply line downstream of the tank shut-off...
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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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7306195 |
Anti-icing actuator assembly for pneumatic valve
An actuator assembly for use in conjunction with a pneumatic valve assembly of the type which includes an airway having an inlet port, an outlet port, and a valve disposed within the airway and...
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7302961 |
Surge relief valve
A surge relief valve comprising a main valve body having a dome port and an inlet port. The inlet port is in fluid communication with a first fluid. The invention further includes a dome reservoir...
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7296586 |
Gas-regulating unit for regulating a gas pressure in a gas-tight tank
A gas-regulating unit for regulating an internal gas pressure in a gas-tight liquid-storage tank is mounted on the gas-tight tank in which stored liquid is sealed from outside atmosphere by...
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7284563 |
Surge relief apparatus and method
A surge relief apparatus for sensing, tracking and responding to pressure changes in a flow system. The apparatus includes a fluid storage tank that is in fluid communication with the flow system....
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7249610 |
Ratio controller with dynamic ratio formation
For adjustment of a desired burner gas-air ratio over the broadest possible load range without additional pressure tapping of the burner, combustion chamber, or air lines, a ratio controller is...
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7240740 |
Diaphragm valve with pivoting closure member
A valve is disclosed having an inlet duct aligned with an outlet duct and an angularly oriented elliptical seat positioned between them. A pressure chamber faces the seat. A pivoting valve closure...
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7201180 |
Water supply system
A water supply system comprising a supply line and a network of consumers, one of which being a monitored consumer who receives the least amount of pressure, a pressure regulation system comprising...
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7147430 |
Pneumatic valve control using downstream pressure feedback and an air turbine starter incorporating the same
A starter air valve assembly includes a valve body, a flow control valve, a rate control servo mechanism, and a valve actuator. The valve body defines a flow passage having at least an inlet port...
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7066710 |
Pneumatic valve control having improved opening characteristics and an air turbine starter incorporating the same
A starter air valve assembly includes a valve body, a flow control valve, a rate control servo mechanism, and a valve actuator. The valve body defines a flow passage having at least an inlet port...
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7066203 |
Gas flow control
Gas flow control is addressed using a controllable approach that facilitates safe operation. According to an example embodiment, a control arrangement for gas flow comprises two main valves...
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7044156 |
Pipeline protection system
A protection system for a pipeline comprises a hydraulically actuated valve operable to switchably prevent a flow of fluid from a first section of the pipeline to a second section of the pipeline,...
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7036794 |
Method for control of a vacuum valve arranged between two vacuum chambers
A method for controlling a vacuum valve arranged between two vacuum chambers comprises a valve body with a valve opening, a closure member which closes the valve opening in a closed state of the...
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7025088 |
Providing an indication of the position of a valve member
A method of providing an indication of the position of a valve member of a valve in a fluid path where the valve member is moveable between a fully open position in which a maximum flow of fluid...
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7000641 |
Inflatable stopping bags
A method of controlling the fluid pressure of an inflatable stopping bag used to block the fluid flow through a fluid conduit comprises pressurising the bag using a pressure regulator which...
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6968856 |
Mechanically automated fluid consumption limiting apparatus
A mechanical automatic fluid consumption limiting apparatus for limiting flow through a primary flow line includes an actuating line, a control line, a rotary meter, a control assembly, an...
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6944529 |
Automatic fluid draining from a hydraulic system component of an automatic transmission
In a hydraulic system for an automatic transmission, a method for automatically draining fluid from an oil cooler and related hydraulic lines when power is off to prevent fluid leakage, escape and...
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6892745 |
Flow control valve with integral sensor and controller and related method
A flow control valve assembly, and a method of determining and controlling fluid flow through the valve, that is relatively simple in design, is relatively inexpensive, is accurate, and has a...
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6893505 |
Apparatus and method for regulating fluid flows, such as flows of electrochemical processing fluids
A method and apparatus for regulating fluid flows, such as flows of electrochemical processing fluids for processing microelectronic workpieces. The apparatus includes a valve body having an...
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6880568 |
Pressure relief system with multi-port valve
A pressure relief system is provided to detect and abate an overpressure condition in a pressurized fluid disposed in a conduit. The system includes a valve assembly and an actuator configured to...
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6843265 |
Pressure relief system with supply activated valve
A pressure relief system for detecting and abating an overpressure in a pressurized fluid. The system includes a pressure response assembly that has a pressure responsive member, such as a buckling...
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6832628 |
Variable pressure regulated flow controllers
The present invention is an intrinsically safe pneumatically actuated flow controller. A preferred embodiment for the flow controller has a housing assembly defining an inlet port, an outlet port,...
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6814837 |
Controlled gas supply line apparatus and process for infilm and onfilm defect reduction
According to one aspect of the disclosure, the present invention provides methods and arrangements for controlling supply process gas to a process chamber for use in the manufacturing industry....
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6805148 |
Relief-valve jet
The invention concerns a pressure-limiting valve to limit the pressure of hydraulic oil which can be admitted through two intakes, consisting of a control rod in a cylindrical housing equipped with...
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6694746 |
Micro volume actuator for an air turbine starter
An air turbine starter system and air turbine starter valve that has a microvolume actuator to prevent the connected butterfly valve from opening too quickly. Air turbine starter valves can in some...
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6695005 |
Pressure regulating valve
A pressure regulating valve for controlling an upstream fluid pressure in relation to a reference pressure by regulating the fluid quantity let through the valve, comprising a housing (1) having an...
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6651687 |
Pressure relief system with clutch activated valve
A pressure relief system for detecting and correcting an overpressure situation in a pressurized fluid. The system includes a pressure responsive member such as a buckling pin configured to...
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6609854 |
Structure and method for detecting an inflated state of a flexible membrane dam
A structure for detecting an inflated state of a dam formed by a flexible membrane disposed in a conduit, with the detection unaffected by pressure resulting from fluid flow through the conduit...
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6595237 |
Pressure regulator for gas transport and distribution plants
The invention relates to a gas pressure regulator having a valve, a delivery duct of low pressure gas (Pb), a regulation shutter for the gas delivery flow, a control head of the valve defining an...
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6584999 |
Fluid pressure controller
A fluid pressure controller has an air supply valve plug displaceable under an action of pilot pressure of a pilot chamber. When the air supply valve plug is seated on a seat section, fluid...
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