Common Actuator For Control Valves Patents (Class 137/174)
  • Patent number: 11000784
    Abstract: A vacuum assembly includes a housing and a movable assembly positioned within the housing. Movement of the movable assembly relative to the housing creates a low pressure area. A fluid flow conduit is in fluid communication with the low pressure area. A leakage valve is disposed within the fluid flow conduit and is movable between a first position and a second position to restrict a flow through the fluid flow conduit upon detection of an undesired fluid within the low pressure area.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: May 11, 2021
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventor: Gerald P. Dyer
  • Patent number: 10774988
    Abstract: A vent valve for an actuator disposed in a lubricant reservoir includes a bore extending through the plate, a seal disposed within the bore proximate a top surface of the plate, a retaining member extending about a lower opening of the bore, and a ball disposed within the bore between the seal and the retaining member. The vent valve is configured to allow air to pass from a lower portion of a lubricant reservoir as lubricant fills the lower portion. The vent valve also allows air to pass to the lower portion of the lubricant reservoir as lubricant is dispensed from the reservoir. The vent valve closes when the lubricant level reaches the vent valve, thereby preventing lubricant from flowing through the vent valve. The sealed vent valve allows the actuator to rise in response to a rising lubricant level.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: September 15, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: John C. Holman, Brandon T. Gustafson
  • Patent number: 10345212
    Abstract: A separator is described as provided with a gas/liquid separator vessel, a sight glass, and a carry-over meter. The sight glass is positioned on the exterior of the gas/liquid separator vessel, and has a first inlet and a second inlet in fluid communication with a separation chamber of the gas/liquid separator vessel. The sight glass is further provided with a first outlet in fluid communication with the first inlet, and a second outlet in fluid communication with the second inlet. The sight glass has a tube extending between the first inlet and the second inlet with at least a portion of the tube being transparent to light in a visible range of wavelengths. The carry-over meter is provided with a first densitometer connected to the first outlet of the sight glass via piping and a second densitometer connected to the second outlet of the sight glass via piping.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: July 9, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Laurence Fraser, Francis Allouche
  • Patent number: 9216367
    Abstract: An improved fluid separator and tester having a vessel, an adjustably buoyant float member, an external surge tank, and a gas vent connected to the fluid separator having a float and gas valve assembly, the improvement comprising a set of risers set to equal height, at least one valve to redirect fluid flow to test flow meters, and a spill preventer having a connection to a vertical gas valve, a housing, at least one internal freely movable float, upper float seat adapted to receive a float to seal and prevent the escape of particulates while allowing the venting of gas, a float support means, and discharge means for expelling the contents, whereby the improvements provide increased accuracy in determining a volume of each type of input fluid during operations, allow for the assessment of proper operation of the meters, and prevent environmental contamination in the event of system malfunction.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: December 22, 2015
    Inventor: Dennis P. Caldwell
  • Patent number: 7856333
    Abstract: The disclosure relates to a method for commissioning pneumatically operated actuators that are controlled by a positioner. To determine the drive type, a constant flow of pneumatic fluid is applied to the actuator during commissioning while a drive-specific characteristic curve of the fed back position is recorded over time. Then the measured characteristic curve is compared with a given specimen characteristic curve. The drive type is inferred from the level of difference or agreement between the drive-specific characteristic curve and the specimen characteristic curve.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: December 21, 2010
    Assignee: ABB AG
    Inventor: Wolfgang Scholz
  • Patent number: 7000628
    Abstract: A liquid flow metering system is disclosed which includes a pump disposed between a liquid supply and a reservoir. The reservoir includes an inlet connected to the pump, an air/liquid outlet and a liquid outlet. The air/liquid outlet is connected to an air separation chamber. The liquid outlet is connected to a flow meter and a liquid outlet valve. The air separation chamber is connected to an air outlet. The air outlet is connected to an air release valve. The air separation chamber accommodates an optical sensor for sensing the presence of air in front thereof and within the air separation chamber. The optical sensor, air release valve and liquid outlet valve are all linked to a controller. When the optical sensor senses air in front of the optical sensor, the sensor sends a signal to the controller to open the air release valve and close the liquid outlet valve.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: February 21, 2006
    Assignee: Liquid Controls
    Inventors: James R. Ruesch, James S. Nerstrom, Thomas T. Tschanz
  • Patent number: 6895816
    Abstract: An apparatus for detecting fluid levels in an oil and gas well environment and transmitting a signal to a remote site when sensing that the level has reached a predetermined amount.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: May 24, 2005
    Inventor: Foy Streetman
  • Patent number: 6736964
    Abstract: The apparatus for separating and measuring mixed fluids, specifically the separation of crude oil and water and the volumetric measurement of each of the mixed fluids using a mechanical portable device primarily involving a separation vessel, an adjustable float within the vessel which allows the fluid of less specific gravity to be released from the top of the separation vessel through an upper pipeline, the heavier specific gravity fluid to be released from the bottom of the separation vessel through a lower pipeline, with fluid volume meters on each of the pipelines to measure the liquid flowing through the respective pipelines, the apparatus presented as a portable unit transferable from one pumping device to another, allowing for an accurate measurement of the fluids being extracted by the pumping devices.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: May 18, 2004
    Inventor: Dennis Paul Caldwell
  • Patent number: 6186160
    Abstract: A device for drawing off gaseous and liquid media from an inflowing medium, in particular in a tank ventilation system, has the following features: a housing, a feed connection for introducing the inflowing medium into the housing, an outlet connection for drawing off the liquid medium at the lower side of the housing, an outlet connection for drawing off the gaseous medium at the upper side of the housing, a float chamber which is arranged between the outlet connections, a floating body which is arranged in the float chamber in a manner which allows it to be displaced in the longitudinal direction of the float chamber, a closing device for closing the float chamber with respect to the outlet connection for the liquid medium, a closing device for closing the float chamber with respect to the outlet connection for the gaseous medium, and a deflecting device for deflecting a longitudinal movement of the floating body within the float chamber into an opposite direction and for transmitting the said longitudinal
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: February 13, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Werner Hennrich, Andreas Richter
  • Patent number: 5101852
    Abstract: A liquid intrusion prevention and elimination device having a fully controlled output of flow, facilitating; a body having a inlet port communicating to the upper interior of an enclosed chamber, a controlled output port communicating to an output valve having a valve seat accessing the upper interior of the chamber, a discharge port communicating to a discharge valve having a valve seat accessing the lower interior of the chamber, the chamber housing a float having an attached upper float rod with a valve end compatible to the output valve valve seat passing within a plurality of upper finger members, the upper finger members having substantially tapering gaps, therebetween, the valve end being communicatable to the output valve valve seat, the float having an attached lower float rod with a valve end compatible to the discharge valve valve seat passing within a plurality of lower finger members, the lower finger members having substantially rectangular gaps, therebetween, the valve end being communicable to
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: April 7, 1992
    Inventor: Peter L. Magnasco
  • Patent number: 4951700
    Abstract: An apparatus is disclosed for the continuous and reliable measurement of the yield of oil wells. The fluid from the well, consisting of mixture of oil and gas, is directed into a two-phase separator having separate outlets for gas and liquid. Within the separator, or in direct communication therewith, is a combined liquid level and pressure regulator, which comprises a float supported by the liquid, and upper and lower pressure-compensated slide valves directly mechanically connected to the float and movable vertically therewith, simultaneously progressively closing one outlet while progressively opening the other. Downstream of the pressure-compensated slide valves there are separate yield-measuring devices for the oil and gas output, and further downstream is a mixture, where the components are recombined and thoroughly mixed. A water content meter can also be provided in the flow path for the separated liquid.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: August 28, 1990
    Assignee: Vegyimuveket Epito es Szerelo Vallalat
    Inventor: Pinter A. Kalman
  • Patent number: 4932431
    Abstract: As a coupling is connected, an improved heat fusible actuator member in a plug assembly moves a valve member in a socket assembly from a closed position to an open position against the influence of a biasing spring. When the coupling is exposed to excessive heat, the one piece actuator member fuses and is deformed under the influence of force applied against the actuator member by the valve member to enable the valve member to close. In one embodiment, the actuator member includes a cylindrical sleeve which is resiliently compressible to enable retaining lugs on an inner end of the sleeve to engage in an annular retaining surface on a metal plug body. At the same time, an annular rim on an outer end of the sleeve engages a circular outer end surface of the plug body. A bridging member extends across the fluid passage through the sleeve and is engaged by the valve member.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: June 12, 1990
    Assignee: Tuthill Corporation
    Inventor: Richard J. Silagy
  • Patent number: 4535799
    Abstract: A valve for incorporation in a gas line through which liquid entrained gas passes, positions a valve seat across the line and arranges a sump adjacent to and upstream of the valve seat. A spherical valve element of a specific gravity less than the entrained liquid in the gas stream is positioned in the sump on a second valve seat therein communicating with a liquid outlet. Entrained liquid in the gas stream collects in the sump, floats the spherical valve element upwardly where the gas flow moves it horizontally into the valve seat in the gas line thus closing the gas line and opening the liquid drain.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: August 20, 1985
    Inventor: Robert E. Boley
  • Patent number: 4082106
    Abstract: An air eliminator valve for automatically collecting and venting air and other gases included in flowing liquid. The valve has a chamber in which air collects, a float in the chamber and a vent valve at the top operated by the float to vent the chamber when the liquid level falls. The vent valve has a convex or concave seat with apertures therein and is sealed by a flexible diaphragm which is peeled progressively from the seat to open the valve. The diaphragm may be annular and fixed at its outer periphery, being flexed by a coupling at its center, or may be fixed at the center and flexed by a coupling at its periphery.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: April 4, 1978
    Assignee: Dresser Europe S. A.
    Inventor: Alan George Butcher
  • Patent number: 4079743
    Abstract: An automatically operating air bleeding device for a liquid supply system, especially a fuel supply system for a diesel engine, comprises a tank having a fuel inlet, an upper air outlet valve, a lower fuel outlet valve, a pivotally mounted float and a pivotally mounted follower member resting on the float for effecting opening of the air outlet valve if the fuel in the tank falls to a first predetermined level due to the entry of air into the tank, and for closing the fuel outlet valve if the fuel falls to a second and lower predetermined level, and a magnet on the follower for actuating a switch for a warning device prior to the fuel lowering to said second level.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: March 21, 1978
    Assignee: Bridgemore Engineering Limited
    Inventor: William Augustus Weston