Quotables
"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 6698446 | Check valve A check valve with an elongated body and a hole extending from an inlet end to an outlet end. A piston assembly is mounted within the body and can include a piston, a check valve seal and a piston spring. The piston spring biases the piston to a first pis... | 03/02/2004 |
| 6382235 | Device for over-pressure protection for a storage tank A device for over-pressure protection of a tank has a main body defining a main passage with an inlet and an outlet. The main body also defines a release passage branched from the main passage. A shut-off mechanism is movably disposed within the main pass... | 05/07/2002 |
| 6021800 | Pressure control system A pressure control system controls pressure in a fluid system, and includes a compressor for producing pressurized fluid, with the compressor coupled to a rotor valve and pressure controller. A manifold supports at least the valve and pressure controller,... | 02/08/2000 |
| 5609178 | Pressure-actuated valve and method A downhole valve 10 opens or closes a bypass (12,13) in response to the pressure of the fluid in the valve. The valve housing body 14 is adapted for fluid communication with a tubular within a well bore. The valve bypass may be repeatedly cycled from open... | 03/11/1997 |
| 4589436 | Oxygen partial pressure controller for a pressure swing adsorption system An oxygen partial pressure controller regulates the oxygen partial pressure (PPO2) of the product gas of a pressure swing adsorption oxygen enriching system by means of a bleed valve which increases gas flow through the adsorptive system thereb... | 05/20/1986 |
| 4095611 | Modulating flow control valve assembly The preferred embodiment of the invention disclosed herein includes a main check valve movable between a fully closed and fully open position in response to the flow requirements from a pressure source to a demand system and including an intermediate posi... | 06/20/1978 |
