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| Number | Title | Issue Date |
| 8167267 | Faucet with spherical rotating closure A faucet including: a body having an axis channel; a spherical rotating closure mounted pivotable in the body, between a closed position and an open position, the closure including a through orifice allowing the passage of a fluid from an upstream pipe to a downstre... | 05/01/2012 |
| 7484710 | Fluid flow control valve with high temperature bi-directional shutoff A control valve of the ball type with bi-directional shutoff capabilities is disclosed. The ball valve including an inlet and an outlet, a ball element and a seal assembly. When closing the valve, the ball element, which is eccentrically mounted on a shaft, rotates ... | 02/03/2009 |
| 7347406 | Shut-off valve and method of shutting off opening of vacuum chamber A shut-off valve disposed between openings formed to a vacuum chamber includes a casing, a valve body disposed inside the casing and having a shaft rotating around a central axis of the valve body, a drive unit for driving the valve body to rotate the shaft, and an ... | 03/25/2008 |
| 7325660 | Fluid flow regulation of a vehicle shock absorber/damper Shock absorber components, such as a radial bypass damper, an anti-cavitation valve (ACV) and an incremental flow metering valve IFMV. The damper is of a continuous, unitary construction with a main hole and auxiliary holes interconnected by passageways. The ACV has... | 02/05/2008 |
| 7163064 | Surface flow valve and method A surface flow control system for a well. The system comprises a main housing having a main bore there through, and a first port communicating with the main bore. The system further comprises a first valve positioned within the main bore, and wherein the first valve... | 01/16/2007 |
| 7150446 | Dual lift system Valve and valve lift system suitable for use in a regenerative thermal oxidizer, and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. In a preferred embodiment, the valve is sea... | 12/19/2006 |
| 7089960 | Ball valve The present invention is a ball valve which may be attached to a fluid pipe for connection/disconnection between an entrance and an exit. More particularly, the present invention is a ball valve having a discharge orifice communicating with ambient air in addition t... | 08/15/2006 |
| 7032883 | Hybrid butterfly fluid control valve A flow control valve system has a housing that defines a flow path, a throttle element disposed in the flow path, and a linkage assembly coupled to the throttle element and oriented substantially outside the flow path. With such an orientation, the linkage assembly ... | 04/25/2006 |
| 7011651 | Device for regulating flow rate of intravenous medical solution during injection The object of this invention is to provide a device for regulating the flow rate of an intravenous medical solution during an injection using an intravenous drip unit. The device has a housing (10) mounted to a hose (300) to allow the flow of the solut... | 03/14/2006 |
| 6994316 | Rotor valve and seal A rotor valve (10) having a rotor seal (34) containing a centrally disposed opening (52) for directing an external pressure (Pe) to a rear surface (35) of the seal for applying a sealing force against a sealing surface (36 | 02/07/2006 |
| 6978977 | Dual lift system Valve and valve lift system suitable for use in a regenerative thermal oxidizer, and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. In a preferred embodiment, the valve is sea... | 12/27/2005 |
| 6783111 | Dual lift system Valve and valve lift system suitable for use in a regenerative thermal oxidizer, and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. In a preferred embodiment, the valve is sea... | 08/31/2004 |
| 6378841 | Quarter-turn rotary plug valve with seats reciprocable during operation A method and apparatus for controlling fluid flow with a quarter-turn plug valve with seats operated to lift off the sealing surface of the plug prior to plug rotation and to reseat upon completion of plug rotation. One embodiment shown relates to a quart... | 04/30/2002 |
| 6196268 | Rising stem soft seat plug valve A rising stem plug valve has a valve body housing that receives a plug. A handle assembly is attached to the plug for rotational movement of the plug between operative positions. A control assembly is attached to the plug for unseating and seating of the ... | 03/06/2001 |
| 6173743 | Distributor for liquids A distributor for liquids including a two-diameter (1a, 1b) base body (1) provided with the inlet (4) for the liquid in the upper portion (1a) having the bigger diameter and with several outlets (5) in the lower, compartmented portion (1b), a rotatable ob... | 01/16/2001 |
| 5911242 | Reversing valve and method A reversing valve for a vapor compression refrigeration system comprising a housing defining a chamber with a high pressure port, a low pressure port and first and second system ports opening into said chamber through a chamber wall; a valve member dispos... | 06/15/1999 |
| 5885062 | Switching valve fluid compressor and heat pump type refrigeration system A switching valve comprises a valve body to which a plurality of fluid passages are connected, a slider having a gas passage capable of selectively connecting two fluid passages, a balance port for letting the gas passage communicate with the outside of t... | 03/23/1999 |
| 5878781 | Reversing valve and method A reversing valve for a vapor compression refrigeration system comprising a housing defining a chamber with a high pressure port, a low pressure port and first and second system ports opening into said chamber through a chamber wall; a valve member dispos... | 03/09/1999 |
| 5842680 | Actuator using magnetic forces to reduce frictional forces An actuator for opening and closing a valve with less resistance. The actuator includes a rotor, a stator, a valve and a shaft. The shaft having a first and second end, and an axis extending longitudinally therethrough. The stator, having an electromagnet... | 12/01/1998 |
| 5551666 | Butterfly flap valve Butterfly flap valve (10) comprising a valve housing (12) with an axial flow aperture (14), a flap shaft (16) that projects out of the valve housing (12), crosses the flow aperture (14) substantially diametrically and can be operated by means of a drive m... | 09/03/1996 |
| 5467965 | Valve system A butterfly valve comprises: an elongate valve body (1) having a flange (2) at one end, a valve plate (4), operative between an open and closed position, forming a seal with the said flange (2) in the closed position, and a valve plate support structure i... | 11/21/1995 |
| 5333833 | Rotary ball valve with lifting ball A ball-valve member, which in its valve-closed condition must have circumferentially continuous sealed contact with its seat, is mounted for rotation about an axis which is eccentrically gyrated in the course of limited rotation of an actuating element th... | 08/02/1994 |
| 5329968 | Shuttle valve A shuttle valve is described which comprises a valve housing having an inlet and a plurality of outlets. An inner valve assembly is located within an internal cavity which is actuated by a shaft which extends from the internal cavity to a point external f... | 07/19/1994 |
| 5259590 | Valve seat for high temperature valve Valve such as a ball valve with a metal seat ring assembly comprising an outer ring seated in the valve body and an inner ring seated in the outer ring. The outer ring is formed with a lip projecting inwardly and presenting a sealing surface for contact w... | 11/09/1993 |
| 5228645 | Rotary ball valve with lifting ball A ball-valve member, which in its valve-closed condition must have circumferentially continuous sealed contact with its seat, is mounted for rotation about an axis which is eccentrically displaced in the course of limited rotation of an actuating element ... | 07/20/1993 |
| 5188144 | Plug valve A plug valve having a body with an inlet, an outlet and a plug-receiving opening which intersects the inlet and outlet. A plug is mounted in the opening and has an outer wall and an orifice extending therethrough. The plug is movable from an operative pos... | 02/23/1993 |
| 5169123 | Steel ball valve A valve, with a ball having a shaft (5), comprises, at least on the "upstream" side, a seat (14) that can move in the direction in which the fluid flows (F). Seat (14) is connected to body (1) of the valve by an annular membrane (21), constituting a wall ... | 12/08/1992 |
| 5137258 | Ball valve A ball valve having a spherical valve body which is rotarably mounted in a valve box and rotation of the spherical valve body controls a fluid to flow or stop. The spherical valve body provides sub-valve plates which may be pressed against valve seats so ... | 08/11/1992 |
| 5118078 | Butterfly valve having improved sealing characteristics A fully sealing butterfly valve throttles flow rates through a flow channel and completely ceases flow. A throttle plate rotates into a close position and then moves axially to seat against a seal. The axial movement directly corresponds to rotation of an... | 06/02/1992 |
| 5052657 | Ball valve A kelly valve includes a ball valve structure (10) having a ball valve member (40) with a central bore (42) therethrough mounted within a valve chamber (38) for rotation between open and closed positions. A fluid pressure equalizing opening or port (60) i... | 10/01/1991 |
| 5009388 | Magnetic-controlled valve for fluid pipelines A magnetic-controlled valve for fluid pipelines. The valve comprises a sealed guide bushing accommodating an external magnetic ring movable along the outer wall thereof and an internal magnetic plug-stopper movable longitudinally therein. A valve body acc... | 04/23/1991 |
| 4940210 | Ball valve A new and improved valve apparatus and method of operating same that moves a flow closure assembly between open and closed positions with a minimum of frictional resistance while effecting a forcible engagement with both upstream and downstream valve seat... | 07/10/1990 |
| 4921212 | Hybrid butterfly valve A hybrid butterfly valve has a stationary seat and a valve closure disk which may rotate together with an actuating shaft from the fully open position to a position wherein the disk is aligned with the seat, and thereafter may be moved linearly into seali... | 05/01/1990 |
| 4917354 | Dual action ball valve A dual-action ball valve having a sleeve fixedly mounted within the valve bonnet. Spiral slots are provided in the sleeve for receiving a transverse guide pin mounted in the valve stem. The lower end of the valve stem is provided with sloping cam surfaces... | 04/17/1990 |
| 4619283 | Stem seal for tapered lubricated plug valves A method of forming a stem seal and controlling the sealant film thickness in a lubricated plug valve in which a deformable ring is inverted in an annular space between the stem, the valve cover and the top of the plug and the ring is deformed into sealin... | 10/28/1986 |
| 4579316 | Metal seated ball valves An arrangement for top entry ball valve, providing relief from seating load when turning the ball to effect either opening or closing of the valve by a handle connected to the ball via a stem. The arrangement including: a nut having an external thread the... | 04/01/1986 |
| 4564043 | Stepping valve This invention relates to a pneumatically actuated stepping valve for an automatic control of inlets and outlets for a pneumatic fluid. Each stepping movement is performed in response to a feedback signal indicating that an operation controlled by the val... | 01/14/1986 |
| 4508173 | Flow control valve for use on oil and gas wells or the like The valve includes a tubular housing member that is connected in a string of a tubing that extends into an oil or gas well. The upper end of the tubular housing member is rotatable and is connected through actuators to a valve member that is pivotally sup... | 04/02/1985 |
| 4501295 | Transfer valve A transfer valve having a valve casing with a closed bottom, a closed top and a separator plate dividing the interior of the valve casing into an upper chamber and a lower chamber. An inlet port opening into the upper chamber, an outlet port opening into ... | 02/26/1985 |
| 4415037 | Ball valve loading apparatus A ball valve assembly is provided for elimination of the tearing of the annular elastomeric seal which normally engages the periphery of such ball valve due to the movement of the valve with excessive loading imposed on the elastomeric seal. A spring pres... | 11/15/1983 |
