|
Match
|
Document |
Document Title |
|
|
8162002 |
Device for controlling the delivery of a combustible gas to a burner apparatus
A device for controlling the delivery of a combustible gas to a burner apparatus is provided including a main gas-delivery duct in which there is at least one servo-assisted diaphragm valve...
|
|
|
8113233 |
Hydraulic circuit of option device for excavator
A hydraulic circuit of an option device for an excavator is disclosed, which can constantly supply hydraulic fluid to an option device, such as a breaker and so on, selectively mounted on the...
|
|
|
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...
|
|
|
7770612 |
Pressure-actuated air gun
A pressure-actuated air gun having an actuating port in the nozzle of the gun such that, when the actuating port becomes blocked, as by inserting the nozzle of the gun into a coupling on an article...
|
|
|
7735513 |
Diaphragm valve with electronic pressure detection
A flush valve for a waste water system comprises a valve including a fluid inlet, a fluid outlet and a main valve element adapted for movement to allow fluid flow between the fluid inlet and the...
|
|
|
7134447 |
Gas pressure regulator
A gas pressure regulator has an inlet for connection to an upstream gas line for flow of gas into the regulator under pressure and an outlet for connection to a downstream gas line for flow of gas...
|
|
|
6997165 |
Pressure control valve for a fuel system
A valve has a housing defining an interior of the valve. The valve has a first passage in the housing and a second passage in the housing. The valve has a flow limiter movable between a first...
|
|
|
6935363 |
Pressure control system for low pressure operation
A pressure control system for controlling the pressure of a process fluid stream at a certain location having a pressure regulator disposed in the process fluid stream, through which the process...
|
|
|
6932101 |
Solenoid valve assembly for controlling gas supply
A solenoid valve assembly for controlling gas supply and opening and closing gas supply with a regulation function generally includes a solenoid valve assembly having a housing, a diaphragm...
|
|
|
6895994 |
Self-operated protection device for pipeline
A protection device which is capable of cutting off a pipeline when the pipeline leaks due to the rupture of the pipe self-operatedly closes the pipeline using fluid kinetic energy. A control rod...
|
|
|
6820641 |
Internally piloted dome loaded regulator
The internally piloted dome loaded pressure reducing regulator includes a regulator body with a main valve portion and a pilot valve portion. The inlet is fluidly connected to the main valve bore...
|
|
|
6786231 |
Fluid flow regulator with restrictor pin
A fluid flow regulator having a chamber comprising a port opening and a tapered pin disposed within the opening, for controllably restricting the cross-sectional flow area through the port. The...
|
|
|
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...
|
|
|
6540204 |
High pressure solenoid pilot valve
An improved electrically operated pilot-type, “instant-on” solenoid assembly for near-instantaneous control over the flow of compressed gas. The assembly may be applied in fuel systems for pro...
|
|
|
6209577 |
Modulating action non-flowing pilot operated relief valve
A pilot valve includes a body having a channel formed therein, an inlet chamber formed along the channel, an inlet port in communication with the inlet chamber, a control port in communication with...
|
|
|
6192924 |
Pilot operated relief valve
A pilot operated safety relief valve (14) in which a pilot valve (32) controls the opening and closing of the main valve member (26). The pilot valve (32) has a spindle valve member (70) between an...
|
|
|
6035878 |
Diagnostic device and method for pressure regulator
A diagnostic device and method for an intelligent pressure regulator which maintains a fluid in a process at a predetermined pressure. The regulator includes an electronic controller which enhances...
|
|
|
5988988 |
Capacity control valve device for variable capacity swash plate compressors
A capacity control valve device for a variable capacity swash plate compressor which includes at least one piston, a suction port, a suction chamber, and a refrigerant inlet passage communicating...
|
|
|
5967176 |
Automatic flow control valve with variable set-points
The invention provides a pilot valve apparatus for use in an automatic fluid control system for maintaining pressure downstream from a main control valve between two setpoints irrespective of flow...
|
|
|
5957148 |
Valve system having a deadman controlled actuating member in a vented chamber
A main valve receives fluid at an inlet and transmits the fluid to an outlet. The main valve has a rear face. A surge control servo valve responds to a load sense signal and moves between a closed...
|
|
|
5904333 |
Fuel control device and methods of making the same
A fuel control device and method of making the same are provided, the fuel control device comprising a housing having an inlet separated from an outlet by a valve seat and having a movable valve...
|
|
|
5816286 |
Pressure unloading pilot operated regulator having pressure limiting check valve
A pressure unloading pilot operated fluid pressure regulator having a throttling element for controlling fluid flow. A pilot amplifier senses regulator outlet pressure and supplies suitable loading...
|
|
|
5806553 |
Fluid pressure control and relief apparatus
Fluid pressure above a predetermined limit in a fluid pressure system is reduced by operating a relief valve, having its inlet port connected with the system, in a throttling action. A normally...
|
|
|
5787925 |
Pneumatically servoed gas pressure regulator
A pneumatically servoed gas pressure regulator capable of providing a relatively wide range of gas flow rates with precision outlet pressure control includes a dome loaded gas pressure regulator...
|
|
|
5738333 |
Relief valve
A pressure relief valve (10) for a pilot operated fluid system (FIG. 4) for a pressure vessel (12). Pressure relief valve (10) has a valve body (14) forming a valve chamber (16) accessible by upper...
|
|
|
5735308 |
Automatic constant-pressure regulating lift device
The present invention relates to an automatic constant-pressure lift valve provided with a pilot valve unit having an A valve unit and a B valve unit, and an external control force applying means...
|
|
|
5709368 |
Hydraulic control valve for fluid metering and cylinder protection
A hydraulic control valve for minimizing fluid leakage from a load actuating cylinder and for protecting the cylinder from damage has a composite valve body with a poppet slidably disposed in a...
|
|
|
5694975 |
Pressure regulator
A pressure regulator includes a housing having a chamber that receives a pressure responsive member 30. The pressure responsive member 30 includes an internal charge 90 that allows a movable...
|
|
|
5657784 |
Control arrangement for actuating a shut-off valve and method of operation
A control arrangement (10) for a shut-off valve actuable by vacuum and intended for use in vacuum waste water systems, comprising a first valve (14) which is actuated by static pressure of...
|
|
|
5620017 |
Pressure regulating system for a fire extinguishing facility
In a pressure regulating system for a fire extinguishing facility, a primary side and a secondary side of a body of a pressure regulating valve is isolated from each other by a main valve. An...
|
|
|
5490539 |
Pressure regulator for maintaining a stable flow level of a fluid
A flow regulator for maintaining a stable rate of flow of a fluid in a flow channel (2), comprising a flow-actuating element (4) which is movable under the influence of a pressure drop in the fluid...
|
|
|
5487273 |
Turbocharger having pneumatic actuator with pilot valve
A pneumatic actuator for controlling the wastegate valve of an exhaust gas driven turbocharger includes a pilot piston which is responsive to boost pressure to open only when a desired boost...
|
|
|
5460196 |
Fluid supply pressure control method and apparatus
A fluid supply pressure control apparatus for use in conjunction with a pressure control valve (10) of a fluid supply system is disclosed which includes: first sensor means (26, 28) for sensing the...
|
|
|
5421545 |
Poppet valve with force feedback control
A force feedback popper valve has a valve element for controlling fluid flow from an inlet port to an outlet port. A meter-in orifice communicates pressurized fluid from the inlet port to a control...
|
|
|
5398719 |
Pressure protection installation for a pressure vessel
A combination pressure vessel and pressure protection installation for the pressure vessel includes a connector pipe connected to the pressure vessel. A valve assembly has a housing block disposed...
|
|
|
5348036 |
Automatic control valve
An automatic control valve has a main valve member moveable between open and closed positions thereof in response to pressure applied to a first piston or diaphragm in a first control chamber. The...
|
|
|
5327720 |
Differential pressure regulator valve
A regulator valve having a diaphragm which responds to changes in an operational fluid pressure differential by overcoming a first spring and moving a stem of a first spool away from a stop to...
|
|
|
5170820 |
Management system for the application of anhydrous ammonia fertilizer
A system for controlling the flow of agricultural ammonia from a tank to applicator apparatus transported by a land vehicle over the ground includes a ground speed sensor that generates a speed...
|
|
|
5097858 |
Clock controlled gas pressure regulator
A clock controlled solenoid valve selectively enables or disables one or the other of two pilot control valves, one set at a higher and the other at a lower pressure setting, for selectively...
|
|
|
5035357 |
Pressure control valve and system
A pressure control system, including a pilot valve suitable for use therein, for providing a constant pressure from a non-compensated pump to a plurality of nozzle valves controlling flow from a...
|
|
|
5016665 |
Method and apparatus of isolating pneumatic panels in liquid application systems
A method and apparatus for applying liquid coating materials, adhesives or other liquids is provided in which the liquid material is pumped from a source through a pneumatically operated,...
|
|
|
4977925 |
Safety valve
The safety valve has a main lid and a servopiston movable in a servopiston chamber. A pilot valve has a lid loaded by a predetermined force in its closing direction and opens in response to a...
|
|
|
4971104 |
Self powered servo actuated backpressure regulating valve
A self-powered servo-actuated backpressure regulating valve including a valve housing (1) having an inlet port (2) and an outlet port (3). A valve plate (4) is disposed in the housing (1) and...
|
|
|
4901758 |
Device for the remote control of pneumatically operated mechanisms, which has fast, high resolution response over a broad range of pressures and which is insensitive to position or vibration
An electropneumatic transducer which operates quickly and accurately over a broad range of pressures to control high pressure, high flow devices at their point of operation. The transducer is...
|
|
|
4865079 |
High pressure hydraulic flow control valve
A high pressure hydraulic flow control valve is formed with a spool which is capable of operating as a conventional spool to control the flow of fluid from an input port to an output port or to a...
|
|
|
4827974 |
Top entry expansible tube valve
A top entry expansible tube valve has a generally cylindrical receptacle in the valve body disposed transversely of the flow passageways to receive a slotted core sleeve with a central barrier and...
|
|
|
4809736 |
Piston structure for pressure reducing valve
A piston structure of a pressure reducing valve in which a piston is formed on its side surface with an annular groove for receiving a piston ring therein and is slidably inserted into a cylinder...
|
|
|
4791954 |
Self-regulated pressure control valve
A self-regulating pressure control valve, such as, for example, a self-regulated pressure reducing valve, including as the principal components, a pressure control valve, a pressure regulating...
|
|
|
4757839 |
High pressure relief valve
A high pressure relief valve for use in fluid systems, gas or liquid with zero leakage at pressures of 25,000 psi and above. The relief valve includes a valve body having an axial bore...
|
|
|
4684067 |
Two-stage, hydraulic-assisted fuel injection nozzle
A fuel injection nozzle is provided with a pressure actuated injection valve with a first spring and a second spring operatively associated therewith to permit two stage opening of the injection...
|