Biased Patents (Class 251/313)
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Patent number: 4739968Abstract: The invention relates to a valve-controlled system, particularly for use in an internal combustion engine, comprising a valve stem and a valve disc extending at an oblique angle to the axis of the valve stem. The valve disc is adapted to be lifted from an associated valve seat and is non-circular and preferably elliptical. By means of a turning drive the valve is adpated to be rotated to open and close chambers or passages which open into the valve seat.Type: GrantFiled: February 13, 1987Date of Patent: April 26, 1988Inventor: Gunter Schabinger
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Patent number: 4688756Abstract: A single metal-seated ball valve can accommodate differential temperature expansion of the components without jamming yet provide tight shutoff in a closed position, and provides tight shutoff even if solids are present in the fluid being valved. The valve includes a valve body with a through-extending bore and interior cavity, and a rotatable valve element (such as a ball) having a through-extending passageway and mounted for rotation about an axis for movement between the first, open position in which the passageway and bore are generally aligned, and a second, closed position wherein the passageway and bore are not aligned. A metal sealing ring, or a machined sealing surface of the metal valve body, sealingly engages the valve element and prevents flow of fluid through the bore when the valve element is in its second, closed position. A pair of elongated flexible linear spring elements bias the valve element into sealing relationship with the sealing ring.Type: GrantFiled: December 16, 1985Date of Patent: August 25, 1987Inventor: Peter G. Kindersely
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Patent number: 4643216Abstract: A ball valve connector of the frangible crashworthy type wherein two fluid flow connector body halves are interconnected by fracturable elements. Each body half includes a ball valve within a flow passage pivotally mounted on diametrically located pins. The pivot pins and valves are capable of displacement in the axial direction of fluid flow to compensate for manufacturing tolerances and provide maximum sealing characteristics. Each valve is rotatable 90.degree. between open and closed positions, and a stop projection defined on each valve cooperates with a spring biased stop ring providing positive retention of the valve in the closed position.Type: GrantFiled: February 6, 1986Date of Patent: February 17, 1987Assignee: Aeroquip CorporationInventors: Alan R. Allread, William C. Marrison, Russell L. Rogers, Alexander P. Webster
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Patent number: 4607820Abstract: A rotating gate valve for access to vacuum chambers, and the like, employs a rotating gate member which is alternatively aligned to cover or to uncover a slot in a concentric valve body, the ends of which are sealed and serve as supports for a shaft. Eccentric lobes on the shaft engage corresponding cam surfaces on a gate member causing it to be urged into high force contact with the body when sealing of the chamber is desired.Type: GrantFiled: May 20, 1985Date of Patent: August 26, 1986Inventor: Rudolf F. Nissen
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Patent number: 4546660Abstract: An automatic valve motor for shutting off utilities, such as gas, in the event of an earthquake. The valve motor is self-contained and can be mounted by unskilled persons on a conventional residential gas installation adjacent the main valve without modifying the valve or interfering with the operation of the gas line. An omnidirectionally movable pendulum acting on a pivotal latch is used to release for rotation a wheel whose hub has a key slot which engages the actuator bar of the gas valve. The wheel is driven by a linear spring arrangement which exerts a generally tangential turning force on the wheel for maximum leverage throughout an arc of rotation of about 90.degree..Type: GrantFiled: November 18, 1983Date of Patent: October 15, 1985Inventor: Victor N. Bujold
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Patent number: 4542760Abstract: The invention contemplates the shutting down of such fields of endeavor which otherwise would likely be injurious to life or property on occasions of earthquakes and the like, and comprises a system wherein disuse in the said fields of endeavor occurs automatically upon the major vibration of one or more essential parts or components of a device causing the said components or parts to be disengaged from the remainder of the system and the shut-off operation thereof. As will appear from the disclosure hereinafter set forth in this application of a light duty and a heavy duty embodiment of the device, the systems set forth rely upon a spring loaded wheel which has a specially shaped under-section so to engage a valve or the like in the supply line of the field of endeavor, and being a part of a system which is very sensitive to vibration, and through slippage the parts of the system are released and the valve is shut off. The system, it is clear, is applicable to numerous fields of use.Type: GrantFiled: September 29, 1983Date of Patent: September 24, 1985Inventor: Edmond Flauiani
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Patent number: 4421297Abstract: Self-closing fluid dispensing valves particularly for use with soft flexible fluid containers. The valves include a tubular outer housing having one end attached to the fluid container and an inner coaxial tubular barrel which may be rotated to align fluid dispensing holes in both housing and barrel. Tabs extending from both housing and barrel permit "two-finger" opening of the valves against spring forces that operate to automatically close the valves.Type: GrantFiled: November 2, 1981Date of Patent: December 20, 1983Inventors: Robert G. Pongrass, Christopher C. Rutter
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Patent number: 4376445Abstract: Improved valve mountings with rotational limiting stops for self-closing breakaway valve assemblies comprising two frangibly connected valve housings each having a rotatable valve member and trigger means holding the valve members open until the valve housings separate. The rotatable valve members have slotted trunnion shafts respectively rotatably received in trunnion bearings mounted to the valve housings. A coil spring is deployed about each trunnion shaft and has one tang end received in the slot of the trunnion shaft to bias the rotatable valve member to its closed position. Indicator shafts keyed with the trunnion shafts are rotatably mounted in the trunnion bearings, the ends of the indicator shafts being exposed to indicate the positions of the valve members.Type: GrantFiled: July 27, 1981Date of Patent: March 15, 1983Inventor: Daniel T. Meisenheimer, Jr.
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Patent number: 4319664Abstract: A remotely controlled oil drain valve device to be installed in the threaded drain plug opening of automotive crankcase permitting drainage of crankcase oil without removal of the crankcase plug. A cylindrical tapered valve core having cylindrical arms extending from end surfaces of said cylindrical tapered valve core and being seated in a cylindrical tapered valve seat opening of a cylindrical valve body having an affixed threaded tubular nipple extending radially from said cylindrical valve body, and a disk-shaped cable bracket yoke having an extended arm affixed selectively to said cylindrical valve body by means of threaded fasteners.Type: GrantFiled: March 3, 1980Date of Patent: March 16, 1982Inventors: Ralph J. Price, Jack Albert
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Patent number: 4301823Abstract: Improved valve mountings with rotational limiting stops for self-closing breakaway valve assemblies comprising two frangibly connected valve housings each having a rotatable valve member and trigger means holding the valve members open until the valve housings separate. The rotatable valve members have slotted trunnion shafts respectively rotatably received in trunnion bearings mounted to the valve housings. A coil spring is deployed about each trunnion shaft and has one tang end received in the slot of the trunnion shaft to bias the rotatable valve member to its closed position. Indicator shafts keyed with the trunnion shafts are rotatably mounted in the trunnion bearings, the ends of the indicator shafts being exposed to indicate the positions of the valve members.Type: GrantFiled: February 9, 1979Date of Patent: November 24, 1981Inventor: Daniel T. Meisenheimer, Jr.
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Patent number: 4270849Abstract: A valve actuator unit is adapted to be removably mounted in a fixed operating relation with respect to the housing of a valve unit having a rotatable valve element by the utilization of an angle-shaped mounting bracket that is adapted to fit over a pair of bolts or studs of the valve housing that are used to maintain it in an assembled relation. The actuator has a rotatable bottom part that is adapted to be secured on the stem of the valve in place of its ordinary manual operating means or handle, and without disturbing its operating mechanism. Turning a handle of the actuator unit to move the valve to an open or closed position builds up spring tension which is employed to provide a smooth spring-actuated return movement. The actuator utilizes a helical return spring within its housing.Type: GrantFiled: April 12, 1979Date of Patent: June 2, 1981Inventor: Adolphe W. Kalbfleisch
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Patent number: 4258903Abstract: A spring-loaded valve actuator assembly having a hollow handle containing a compression spring urged against a movable piston attached to one end of a cable such that the handle remains in the valve-shut position when the handle is at rest. The other end of the cable is secured to the valve housing at an anchor adjacent to an arcuate guide and is in tension at all times to provide spring compression that normally urges the handle toward the shut position. The handle is connected to a rotatable ball valve contained in a valve housing situated in a conduit pipe fluid line, so that it can rotate the ball valve from the full closed to the full open position. As actuating force on the handle is decreased, the handle moves automatically toward its biased shut position because of the stored compression force of the spring which is constantly exerted against the piston inside the handle.Type: GrantFiled: March 17, 1980Date of Patent: March 31, 1981Assignee: Thomas A. Short Co.Inventor: Irving C. Stevenson
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Patent number: 4205783Abstract: For a vent or flue damper of the type in which the damper is closed by an electrically energized actuator when the furnace is off and the actuator has first biasing means to open the damper when the actuator is deenergized, a second biasing means such as a torsion spring, independent of the first biasing means, is associated directly with the damper shaft and is adapted to always move the damper to an open position in the absence of the actuator.Type: GrantFiled: April 27, 1978Date of Patent: June 3, 1980Assignee: Westinghouse Electric Corp.Inventors: Robert J. Dietsche, George W. Nagel
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Patent number: 4092085Abstract: This invention provides a faucet assembly which includes a fluid passageway with valve means adapted to close and open the passageway, and a shaft which operates the valve means by rotating. Resilient biasing means are provided to the form of a spring-biased finger to induce the shaft to rotate in the direction closing the valve means whenever the shaft is less than a given angle away from the fully closed position. This given angle corresponds to a condition in which the passageway is at least partly opened.Type: GrantFiled: October 7, 1976Date of Patent: May 30, 1978Assignee: Aqua-Marine Mfg. LimitedInventor: Colin McMaster-Christie
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Patent number: 4076044Abstract: A lock chamber for discharging dust from an apparatus at an elevated pressure to a low-pressure space, e.g. from an electrostatic separator or cyclone separator at high pressure to a collector or bin at atmospheric pressure, comprises a chamber having an upper inlet and a lower outlet opening and a rotary valve member having a window and adapted, upon rotation, to selectively block and unblock the openings alternately so that pressure is maintained in the high-pressure apparatus while dust can be discharged from the chamber.Type: GrantFiled: September 24, 1976Date of Patent: February 28, 1978Assignee: Metallgesellschaft AktiengesellschaftInventor: Josef Franz Schindling
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Patent number: 3974850Abstract: A high volume, fluid pressure relief valve for the top of a vent opening in a fluid storage tank. The valve includes a valve member which is reciprocal to and from a valve seat disposed in alignment with the vent opening. Constant force spring means coact with the valve member for normally retaining the valve member in closed condition, whereby the fluid pressure force required to move the valve member remains substantially constant throughout the travel of the valve member. A large venting capacity is provided in a single compact valve device and the valve is so constructed and arranged that pilferage from the storage tank is prevented. Also the valve may include an arrangement allowing "in-breathing" of the storage tank.Type: GrantFiled: April 24, 1975Date of Patent: August 17, 1976Assignee: Betts Machine CompanyInventor: Karl B. Pierson
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Patent number: 3966031Abstract: A torque converter and slipping clutch assembly wherein the clutch engagement force is determined by the torque transmitted by the turbine of the torque converter. The clutch engagement force is controlled by differential pressure on opposite sides of the clutch plate. The pressure on one side of the clutch plate is determined by fluid flow through a variable restriction and a fixed restriction arranged in series. The size of the variable restriction opening changes in response to the torque transmitted by the turbine.Type: GrantFiled: June 23, 1975Date of Patent: June 29, 1976Assignee: General Motors CorporationInventors: Raymond T. Peterson, Jr., Paul D. Stevenson
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Patent number: 3964728Abstract: A self closing safety gate valve controls the flow of heavy, viscous fluids such as machine oil, rubber cement, lacquer, or the like. The valve housing contains a rotor with a spring biased thrust exerted laterally against the rotor, to hold it--in normal position--against the housing wall with a metal-to-metal seal at the output orifice. When the rotor turns, a pair of large output orifice openings, in the housing and rotor, are aligned--in off-normal position--in order to enable the out flow of fluid. A spring biased handle automatically returns the rotor from the off-normal to the normal position, where the thrust again presses the rotor body against the large output orifice opening in the housing.Type: GrantFiled: July 22, 1974Date of Patent: June 22, 1976Assignee: Justrite Manufacturing CompanyInventor: Frank S. Flider