|
Match
|
Document |
Document Title |
|
|
6792972 |
Excess pressure release for gas
An excess pressure release is provided which at injector effect during inflation of an air cushion ensures an under-pressure in a part (23) of a valve chamber. By activating a piston (19), the...
|
|
|
5890512 |
CNG regulator
High pressure natural gas enters the regulator at the inlet port and is directed through a filter to a passage in the valve body and into the inner chamber of the valve body. The valve means which...
|
|
|
4705065 |
Safety relief system for control or vent valves
A safety relief system for a valve in a vent or a main flowline. The safety relief system utilizes a main actuator (24) utilized primarily for a positive pressure condition and a vacuum actuator...
|
|
|
4638832 |
Nonreturn piston slide valve
A nonreturn piston slide valve has an inner housing operatively held in an outer housing and a spring operated piston operatively held in the inner housing for cooperation with a valve seat. A flow...
|
|
|
4619285 |
Fluid flow control device
A compact, light weight fluid flow control device adapted to be interconnected between a source of fluid under pressure and a normally stowed inflatable system such as a safety slide or flotation...
|
|
|
4616672 |
Pressure relief and drain valve
A pressure relief and drain valve includes a poppet valve on a valve body movable in a primary valve chamber between closed and open positions and spring biased to the closed position. A secondary...
|
|
|
4574839 |
Directional control valve with integral flow control valve
The present invention is a pressure compensated directional control valve. The present invention allows the flow rate to a given hydraulic implement to be constant regardless of the load imposed...
|
|
|
4552172 |
Pressure-limiting hydraulic valve
A pressure-limiting valve for hydraulic fluids comprises a stepped switching piston which is loaded by a closing spring to oppose high fluid pressure obtaining in an inflow duct of the valve....
|
|
|
4437485 |
Check valve
A check valve (10) for checking reverse flow as well as excessive forward flow includes a housing (15) and a pair of valve elements (20 and 25) which are operated by flow over both inner and outer...
|
|
|
4243069 |
Fluid flow regulator
A precision fluid flow regulator for liquid and gaseous applications necessitating reduction of high inlet pressures and requiring precise control of outlet flow rates and pressures. The device...
|
|
|
3993093 |
Non-return valve
This invention relates to a non-return valve or check valve in the form of a piston-type slide-valve comprising a substantially rotationally-symmetrical outer housing and a likewise substantially...
|
|
|
3902522 |
Pressure reducer
A fluid pressure reducer has an inlet and outlet chamber connected by a passageway which also provides a valve seat; an annular wall extends into the passageway short of the valve seat to provide a...
|
|
|
3814181 |
AMBIENT PRESSURE RESPONSIVE SAFETY VALVE
A safety valve apparatus for wells producing well fluid by formation pressure and including a valve mechanism that is normally maintained in the open or flowing position by an urging means and is...
|
|
|
3420257 |
PRESSURE REGULATING VALVE
|
|
|
3392749 |
Pressure regulator with balancing piston
|
|
|
3236250 |
Apparatus for controlling the gas discharge from pressure reservoirs for breathing, particularly in diving appliances
|
|
|
3221761 |
Pneumatic controller
|
|
|
3043332 |
Gas control unit
|
|
|
2958291 |
Compact liquid dispenser
|
|
|
2921594 |
Breathing apparatus
|
|
|
2910970 |
Flow control valve for hydraulic jack system
|