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| Number | Title | Issue Date |
| 7370667 | Flow through pressure regulator with pinch valve A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a d... | 05/13/2008 |
| 7287551 | Gas control valve The present invention provides gas control valve including a valve body having a gas inlet, a gas outlet, and a gas passage between the inlet and outlet, and including a valve control element for controlling the flow of gas between the inlet and the outlet. The valv... | 10/30/2007 |
| 6978749 | Means to add torsional energy to a camshaft A device for providing additional torsional energy for a cam shaft is provided. The device includes at least one main cam lobe formed on a rotating shaft; a valve operating mechanism disposed to be engaged by the main cam lobe; and an outer cylinder encompassing the... | 12/27/2005 |
| 6585227 | Roller screw actuator for subsea choke or module An actuator for use with a subsea choke or similar apparatus is disclosed. The actuator uses a planetary roller screw mechanism to allow greater control of the torque output while allowing a fast closing of the choke when well conditions require so. A han... | 07/01/2003 |
| 5551477 | Diaphragm-type flow control valve and manual control valve apparatus A manual control valve apparatus having a structure which is provided with, as a conversion mechanism, a diaphragm compressor which is held between a valve casing and a guide member, arcuate engaging grooves formed in a surface of the diaphragm presser op... | 09/03/1996 |
| 5494028 | Medical ventilator A medical ventilator having a valve which controls the flow of gas from a pressurized gas source to a patient for inhalation. Flow through the valve is choked and pressure upstream of the valve is held stable so that a known relationship exists between th... | 02/27/1996 |
| 5141024 | Valve with paired helical ramps Axial displacement between two components of a valve occurs as a result of relative rotation through the cooperation of helical ramps. Preferably another pair of helical ramps is provided concentric with the first but angularly offset 180° with the resul... | 08/25/1992 |
| 5103857 | Self closing valve assembly A self closing valve assembly is disclosed. A retainer member provides support for a spring for biasing the valve actuating cam members as well as providing a valve seat. The component parts are housed in a cartridge for easy placement in a faucet as well... | 04/14/1992 |
| 4934408 | Ball valve Flow control valves (10) and (80) each include a cylindrical body (11) or (82) that is open through a number of ports (13), (14) and (15), the ports to be opened and closed by a resilient ball (16) that is selectively moved into and out of alignment with ... | 06/19/1990 |
| 4565211 | Hydraulic manifold with automatic flow control An access fitting for a hydraulic system including a valve element shiftable to a sealing or blocking position within the hydraulic circuit upon a conduit being attached to the access fitting wherein the valve element automatically seals a portion of the ... | 01/21/1986 |
| 4509721 | Operating mechanism for a high-pressure valve having a valve passage of relatively small width The invention generally relates to high-pressure valves of the type having a valve passage of relatively small width, for instance in the order of 10 mm or less, and a movable valve element for opening and closing said passage. More particularly, the inve... | 04/09/1985 |
| 4477054 | Precision valve assembly A precision valve assembly for controlling flow of fluids to a patient having a valve element mounted on a diaphragm. At least one ball positioned in a spiral track, when moved toward the center by relative rotation of the spiral track and an opposed long... | 10/16/1984 |
| 4377182 | Three-way valve There is disclosed in an improved three-way valve with an improved valve engagement assembly comprised of first ball members mounted on a valve shaft and second ball members mounted on a control shaft whereby rotation of the control shaft causes the first... | 03/22/1983 |
| 4343456 | Plastic control valve A control valve with a three part, all plastic housing having an access opening through which a slide extends for operating the plastic valve element toward and away from the valve seat, the plastic valve element having an integrally molded plastic diaphr... | 08/10/1982 |
| 4134418 | Manual fluid pressure controller A manual fluid pressure controller has a handle with integral cam which mates with a non-rotating cam follower. Rotation of the handle causes displacement of the cam follower which transmits a force through a metering spring to a metering piston. The mete... | 01/16/1979 |
