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| Number | Title | Issue Date |
| 8123196 | Integrated valve system A fluid chamber couples cylindrical input and output lines. The chamber has a closed lower end and an open upper end. A closure plate covers the upper end. The plate has a primary and secondary slots. A finger assembly has primary and secondary fingers. The fingers ... | 02/28/2012 |
| 7406983 | Shut-off fitting The invention relates to a shut-off fitting comprising a housing which is connected to an adjacent pipeline in a pressure tight manner, the diameter of said pipeline defining a tubular passage in the housing. Said fitting also comprises at least one closing body whi... | 08/05/2008 |
| 7303180 | Valve actuator with split thrust bearing A valve actuator includes a body having at least a first side and an interior. A rotatable, threaded drive screw extends into the body and projects out of the body first and second sides. The drive screw comprises an insertion portion and a distal end portion. A tra... | 12/04/2007 |
| 7284567 | Liquid level controller A liquid level controller for maintaining the level of liquid in a tank at a predetermined height includes a housing with an upper and lower section wherein the upper section is connected to a liquid supply and the lower section is submerged in liquid the level of w... | 10/23/2007 |
| 7237567 | Vacuum valve A vacuum valve is disclosed. The vacuum valve comprises a body and a cylinder, mounted at the upper end of the body having a cavity including a piston, the center of the piston provided a piston rod extended into the cavity and the two sides of the body and the bott... | 07/03/2007 |
| 7086416 | Valve assembly having a compensating gate Methods and apparatus for selectively blocking or redirecting flow with a valve that compensates for misalignment between a seat and a gate are disclosed. In one aspect, a valve includes a gate having two discs spaced from one another, first and second seats within ... | 08/08/2006 |
| 6935365 | Rotary slide A rotary slide for medium-carrying pipelines is proposed, comprising a housing (1) capable of being installed between two pipeline ends and having a stop member (9) for shutting off the pipeline and having an actuating device (8) for actuating t... | 08/30/2005 |
| 6886546 | Rotary-actuator EGR valve having compliant seal/bushing A rotary arm-actuated pintle valve assembly having a pintle valve seat, a pintle shaft, and a valve head forming a pintle valve for regulating flow of gas through a valve body. The shaft extends through a port in a wall of the body. A rotary-arm actuator mounted to ... | 05/03/2005 |
| 6557583 | Electric power modulated lead screw actuated dampers and methods of modulating their operation A damper assembly in which the position of the damper blades is controlled by an electric powered actuator. The powered actuator rotates a threaded lead screw shaft attached to an operator means attached to the damper blades of the damper, which causes th... | 05/06/2003 |
| 6474623 | Valve mechanism and control A valve assembly has a valve body in which an inlet port is formed. A valve seat, penetrated by an elliptical opening, is secured in the valve body to provide an outlet port. The inlet port communicates with an inlet chamber, and the outlet port communica... | 11/05/2002 |
| 6439538 | Pressure variable valve apparatus and set pressure detecting apparatus of the valve apparatus A pressure variable valve apparatus includes a mover constituted to be embedded in the body and movable linearly in B direction in a main body to change pressure for releasing closure of a valve flow path by a valve element, a fixed magnetic marker provid... | 08/27/2002 |
| 6164329 | Generally T-shaped valve and valve assembly Valve assembly 10 and generally T-shaped fast acting high-output valve 12 suitable to control flow of fluid through base opening 42, wherein valve 12 comprises stem 14 having pivoting end 16 and arm end 18. Two arms 20 are coupled to arm end 18 of stem 14... | 12/26/2000 |
| 6089537 | Pendulum valve assembly A pendulum valve assembly comprises a housing including an interior space and a pair of openings through which fluid can enter and exit the interior space; a valve seat disposed in the interior space around the edge of a first of the openings; a disk moun... | 07/18/2000 |
| 6044864 | Fuel neck valve control An apparatus for slidably moving a valve control member adjacent a fuel neck of a fuel tank without generating transverse forces. The apparatus provides a slide engaging the valve control member and a toggle lever one arm of which slidably engages a pivot... | 04/04/2000 |
| 6027099 | Tip valve for pneumatic tool A tip valve for a pneumatic tool includes a first valve member having a bore with a central axis and defining a valve seat about the bore and a second valve member having an engaging surface engageable with the valve seat to form a substantially fluid-tig... | 02/22/2000 |
| 6009718 | Ice dispenser for producing chip ice to deliver the same to user An ice dispenser comprises an ice making device including an auger that rotates around a substantially vertical axis; a chip ice stocker having a cylindrical wall formed around an agitator that is attached to an upper end portion of the auger, and an open... | 01/04/2000 |
| 6003605 | Balanced line tubing retrievable safety valve A tubing retrievable surface controlled subsurface safety valve 106 is adapted to be positioned in a well tubing string 102 to control the flow through the tubing string. The safety valve includes an annular housing or body 200 defining a fluid passageway... | 12/21/1999 |
| 5947444 | Gas tap The tap comprises an external operating element and a connecting stem for transmitting the movement of the operating element to the opening and closure member which is arranged in such a way as to be pressed against the sealing seat under the effect of th... | 09/07/1999 |
| 5944046 | Dump valve apparatus A dump valve apparatus is disclosed for dumping water from a firetruck. The apparatus includes a flange sealingly secured to the firetruck, the flange defining an opening for the flow therethrough of the water. A faceplate has an inner and an outer face w... | 08/31/1999 |
| 5937891 | Automatic HVAC housing valve door with tolerance compensating return mechanism A valve flapper door return spring mechanism for an automotive HVAC housing is modified so as to compensate for tolerance variations, so that the door is held in a substantially rattle free return position regardless. One of a pair of resilient spring fin... | 08/17/1999 |
| 5833529 | Fume hood exhaust terminal having an electrically driven linear actuator A fume hood exhaust terminal for controlling gas flow in an exhaust duct has an electrically driven linear actuator for angularly positioning a damper in the terminal. Drive circuitry employed in the preferred embodiment prevents the possibility of shorti... | 11/10/1998 |
| 5829265 | Suction service valve A service valve for isolating the compressor of a chiller system from a flooded evaporator cooler that includes a suction pipe mounted in the top section of the evaporator that extends downwardly into the evaporator shell and a shut-off valve mounted insi... | 11/03/1998 |
| 5788219 | Throttle valve for an air tool A throttle valve is disposed in a handle of an air tool. The throttle valve includes a throttle trigger provided on the handle of the air tool, and a throttle pin which is fixed to the throttle trigger and adapted to axially move when the throttle trigger... | 08/04/1998 |
| 5713556 | Composite-action butterfly valve The present invention provides a high-performance, economical valve. In the valve, a valve element (4) is supported by a valve element support shaft (6) on an arm member (5) with a degree of freedom of turning, and the arm member (5) is supported by a val... | 02/03/1998 |
| 5620015 | Flush valve A valve for sealing a pipe opening with a seal plate movably attached to the pipe opening and a valve body fixed to the pipe opening. Moving the seal plate towards the pipe opening closes the valve, and moving the seal plate away from the pipe opening ope... | 04/15/1997 |
| 5549135 | Ball Valve A ball valve disclosed herein is low cost and offers a fast and reliable valve operation. Furthermore, the actuating force the ball valve requires, when it is shut off, is small. The ball valve is capable of fine adjustment of the flow. The ball valve com... | 08/27/1996 |
| 5535718 | Throttle linkage system A throttle linkage system for synchronizing the movement between a plurality of throttle valves journaled in throttle bodies affixed to a common member that includes a link that has the same coefficient of thermal expansion as the member to which the thro... | 07/16/1996 |
| 5501427 | Plate valve A valve appropriate for both shut-off and flow regulation operations is disclosed here. The valve is easy to handle, suffers from low flow resistance in its fully opened state, and offers excellent choking performance. A variety of sizes of the valve can ... | 03/26/1996 |
| 5354234 | Actuating device for a motor vehicle regulating flap An actuating device for a pivotable regulating flap in a motor vehicle rests against a stop formed on an air passage opening when closing the latter. The actuating device has an actuating member remote from the regulating flap and a connecting rod for con... | 10/11/1994 |
| 5314164 | Pivotal diaphragm, flow control valve An improved structure for pivotal fluid valves is disclosed wherein an elongated pivot arm is pivotally mounted through a flexible, resilient corrosion-resistant diaphragm that serves to support and balance the pivot arm and as a frictionless pivot suppor... | 05/24/1994 |
| 5199462 | Valve having rocker valve member and isolation diaphragm A valve having a valve body formed with a chamber with which a plurality of ports in the valve body communicate. At least one of the ports is adapted for connection to a source of pressurized fluid. A rocker valve member is pivotally mounted within the ch... | 04/06/1993 |
| 5195719 | Butterfly valves with actuators carried on valve plate A butterfly valve (30) in which an actuator (38) is secured to the plate (36). The actuator (38) is carried with the plate (36) when the latter moves. The plate (36) may be revolvable and translatable relative to the shaft (42). The actuator (38) may be u... | 03/23/1993 |
| 5117514 | Improved toilet-tank flapper valve An improved toilet flapper valve (10) designed to directly replace either a conventional toilet flapper valve or tank ball valve. The valve (10) allows a toilet user to selectively determine the quantity of water used for a toilet flush by controlling the... | 06/02/1992 |
| 5078363 | Valve assembly for a tank A valve assembly includes a seat and a valve member. The valve member is pivotally connected to and engageable with the seat to close a flow aperture. The valve member is resiliently yieldably urged into sealing engagement with the valve seat. To open the... | 01/07/1992 |
| 5033713 | Temperature-sensitive actuating apparatus for a servo-apparatus The temperature sensitive apparatus controls fluid flow from one line to others and includes an elongated wire of a shaped memory wire that changes in length with changes in temperature extended into a valve housing for pivotally moving valve mechanism in... | 07/23/1991 |
| 5029599 | Butterfly valve method and apparatus a balanced butterfly valve method and apparatus having a valve plate pivotally supported within a mounting body. The valve plate is capable of both rotational and translational movement in response to rotation of an input shaft. A spring is provided to re... | 07/09/1991 |
| 5005804 | Balanced-torque butterfly valve A balanced-torque butterfly valve (40) incorporates a pivot mechanism (52) designed to provide for bimodal movement of the valve plate (42). The valve plate (42) has a cavity (54) formed therein to receive the pivot mechanism (52) and to accommodate trans... | 04/09/1991 |
| 5000212 | Butterfly valve method and apparatus employing variably positionable pivot shaft A butterfly valve method and apparatus (10) employing a variably positionable pivot shaft (30). The apparatus (10) comprises a duct (16), a valve plate (12), and a pivot shaft (30). Near closed rotational positions of the valve plate (12), the plate is pi... | 03/19/1991 |
| 5000213 | Butterfly valve method and apparatus A method for exploiting the net torque exerted by a conveyed fluid on the valve plate of a butterfly valve to facilitate control of the valve, and a butterfly valve (40) adapted for use with the method are disclosed. The method employs translational movem... | 03/19/1991 |
| 4995414 | Butterfly valve method and apparatus A method for opening a sealingly closed, balanced-torque butterfly valve, and apparatus adapted for use with the method. The butterfly valve (40) comprises a valve plate (42) having a peripherally disposed seal (162) seated in an annular recess (160). A f... | 02/26/1991 |
