Valve Actuator Is Valve Casing Or Extension Thereof Patents (Class 251/341)
  • Patent number: 9027599
    Abstract: Pressure relief/drainage valve for a concrete pumper having a valve body with an axially extending passageway through which concrete flowing in a pumping line passes, an outlet port in a side wall of the passageway, and a valve member which prevents concrete from passing through the port when the valve is a closed position and permits concrete to discharge through the outlet port when the valve is in an open position.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: May 12, 2015
    Inventor: Jeffrey L. Morrison
  • Patent number: 8955824
    Abstract: A fluid filter device (1) includes an opening (14) for draining the fluid (33), a first counter thread (13), a closure element (12) for a fluid-tight closure of the opening screwed in with a thread (11) thereof into the first counter thread (13), a second counter thread (17) into which a connecting element (21) with a thread (22) thereof is screwable for simultaneously unscrewing the closure element (12) from the first counter thread (13) and thereby releasing the opening (14) for draining the fluid (33).
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: February 17, 2015
    Assignee: Mann+Hummel GmbH
    Inventors: Klemens Dworatzek, Daniela Zinic
  • Patent number: 8900118
    Abstract: An implantable device controls the movement of fluid to an inflatable portion of a gastric band. The implantable device includes a body. The body has an inlet, an outlet and a valve seat positioned between the inlet and the outlet. The body defines a fluid passage from the inlet to the outlet. The implantable device also includes a diaphragm. The diaphragm has one or more edges coupled to the body. The diaphragm is made of an elastomeric material and capable of being moved between a closed position that blocks the valve seat and does not allow the fluid to move from the inlet to the outlet and an open position that does not block the valve seat and allows the fluid to move from the inlet to the outlet.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: December 2, 2014
    Assignee: Apollo Endosurgery, Inc.
    Inventors: Janel A. Birk, Robert E. Hoyt, Jr., Sean Snow
  • Patent number: 8727147
    Abstract: A bottle assembly including a bottle, a top closure member adapted for releasable engagement with a top portion of the bottle, and a bottom closure member adapted for releasable engagement with a base portion of the bottle. The bottom closure member has a base panel with at least one aperture therein. A diaphragm is positionable between the bottom closure member and the base portion. The diaphragm has at least one sealing element for sealingly engaging the base panel of the bottom closure member and an air passage extending through the at least one sealing element. The diaphragm is moveable between a sealed position and an unsealed position. The air passage is configured to inhibit liquid contained within a liquid chamber of the bottle from entering the air passage when the diaphragm is in its sealed position by trapping air within the air passage.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: May 20, 2014
    Assignee: Handi-Craft Company
    Inventors: Bernard J. Kemper, Charles H. Miller
  • Patent number: 8602284
    Abstract: A fastener driving device includes a nose assembly carried by a housing that has a reservoir. The nose assembly has a fastener drive track. At least a portion of the fastener drive track is defined by a movable portion of the nose assembly. A fastener driver is movably mounted in the housing and configured to enter the drive track and drive successive leading fasteners into a workpiece. A head valve is constructed and arranged to be actuated so as to allow the pressurized gas to move the fastener driver through an operating cycle. An actuator is constructed and arranged to actuate the head valve. The actuator includes a trigger valve constructed and arranged to allow passage of the pressurized gas from the reservoir to a chamber above the head valve, and a contact valve operatively connected to the movable portion of the nose assembly.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: December 10, 2013
    Assignee: Stanley Fastening Systems, L.P.
    Inventors: Adam Tillinghast, Juan Ignacio Aguirre, Prudencio S. Canlas, Jr.
  • Patent number: 8439880
    Abstract: A flow control system includes a drip chamber having lower and upper wall sections and a collapsible wall extending between the lower and upper wall sections, a downwardly depending valve seat attached to the lower wall section, and a valve member disposed in the drip chamber, attached to the upper wall section and having a valve surface engageable with the valve seat. The system also includes a driver rotatably engaged to the lower and upper wall sections. Upon rotation of the driver in a first direction, the collapsible wall of the drip chamber moves between a collapsed condition in which the valve seat is sealingly engaged with the valve surface and an extended condition in which the valve seat is sufficiently spaced from the valve surface to form a flow passageway between the valve surface and the valve seat and permit flow through the opening of the drip chamber.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: May 14, 2013
    Assignees: Baxter Healthcare S.A., Baxter International Inc.
    Inventor: Georges Rondeau
  • Publication number: 20130001458
    Abstract: This invention relates to a dump valve for a liquid retaining tank having an outlet with a valve seat disposed over the outlet and a valve member displaceable between an open position spaced from the valve to release the liquid from the tank and a closed position for contacting the valve seat to seal the outlet, with an actuator to move the valve member between the open and closed positions. The valve member includes spaced upper and lower plates with deformable material there between to contact the valve seat. The upper plate also including stopper pins.
    Type: Application
    Filed: February 8, 2012
    Publication date: January 3, 2013
    Applicant: Hutchinson Industries Canada Inc.
    Inventor: Jacques Tremblay
  • Patent number: 8132786
    Abstract: A stemless ball valve comprising: a right flange; left flange; ball with an axis pin and two travel pins; ball seal on either side of the ball; guide sleeve with inner walls comprising two channels; cartridge guide holder; inner magnetic cartridge; and outer magnetic cartridge. The ball is situated inside of the guide sleeve, and a travel pin is located in each of the two channels. The guide sleeve is situated inside of the cartridge guide holder, which is located adjacent to and outside of the inner magnetic cartridge and secured to the inner magnetic cartridge such that when the inner magnetic cartridge rotates, the cartridge guide holder also rotates. The cartridge guide holder is secured to the guide sleeve such that when the cartridge guide holder rotates, the travel pins move within the channels in the inner walls of the guide sleeve, thereby causing the ball to rotate.
    Type: Grant
    Filed: September 25, 2010
    Date of Patent: March 13, 2012
    Assignee: Big Horn Valve, Inc.
    Inventors: Kevin Burgess, David Yakos, Bryan Walthall
  • Publication number: 20110303295
    Abstract: The disclosure relates to a control valve for a medium circuit of an internal combustion engine, in particular to a thermostat of a coolant circuit of the internal combustion engine. The control valve includes a valve housing, an expansible material element arranged in a valve body, an energy accumulator having an abutment element, a valve seat, and at least one locking element arranged on the abutment element, each locking element having a counter-latching face. The control valve has a first position wherein the counter-latching face of each locking element is in a non-positive connection with a corresponding latching face of the valve housing in order to force the control valve into a mechanically blocked, forced-open position, the latching face being formed by means of an opening edge in the valve housing. This position may enable a quick and reliable initial filling or refilling of the coolant circuit.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 15, 2011
    Inventors: Kay Hohenboeken, Bert Pingen, Michael Tobergte, Stefan Quiring, Richard Fritsche
  • Publication number: 20110240901
    Abstract: A device is described for mechanically coupling an actuator to a valve which is adjustable by a plunger that is displaceable along a z-axis. The device has (a) a retaining element which can be mounted on a connecting chassis of the actuator and which is embodied for engaging on two opposite sides of a connection piece of a valve body in a recess incorporated in the connection piece, and (b) a clamping device which is disposed on a section of the retaining element and which is embodied in such a way that when the clamping device is actuated the section of the retaining element is displaced parallel to the z-axis relative to the connecting chassis such that the connecting chassis bears against the connection piece. An actuator having a coupling device of said kind and a method for mechanically coupling an actuator to a valve are also described.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 6, 2011
    Inventors: Jörg Evertz, Martin Sprecher
  • Patent number: 7992652
    Abstract: A fluid distributor cylinder is for a percussive drill assembly that includes a casing having an inner circumferential surface defining a central bore, a central axis extending through the bore, a bit movably coupled with the casing and a piston movably disposed within the casing bore. The distributor cylinder includes a generally tubular body disposeable within the casing bore and having first and second ends, a central axis extending generally between the first and second ends, an outer circumferential surface. At least a section of the outer surface is configured to engage with the inner surface of the casing so to form an interference fit between the body and the casing. The cylinder includes an exterior thread and/or a radially-extending shoulder configured to releasably engage with the casing inner surface so as to substantially prevent axial displacement of the distributor body with respect to the casing.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: August 9, 2011
    Assignee: Atlas Copco Secoroc LLC
    Inventor: Timothy J. Plunkett
  • Patent number: 7971855
    Abstract: A stemless ball valve comprising two flanges and a ball with a channel, two axis pins and two travel pins. One end of each axis and travel pin is fixedly attached to the ball, and the other end of each axis pin is lodged into a notch in the first or second flange such that the axis pin is allowed to rotate in the notch. The guide sleeve comprises two channels, and one end of each travel pin is situated within one of the two channels in the guide sleeve. An outer magnetic cartridge causes the inner magnetic cartridge and guide sleeve to rotate, and when the guide sleeve rotates, the travel pins move up and down within the channels in the guide sleeve. The movement of the travel pins within the channels in the guide sleeve causes the ball to rotate, thereby opening and closing the ball valve.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: July 5, 2011
    Assignee: Big Horn Valve, Inc.
    Inventors: Kevin Burgess, David Yakos, Bryan Walthall
  • Patent number: 7762524
    Abstract: A needleless valve assembly includes a needleless connector having a housing with an inlet end with an inlet opening and an outlet end with an outlet opening, and a valve disposed in the housing to control passage between the openings. The assembly also includes a collar having an exterior surface and an interior surface, and a first end with a collar opening communicating between the interior surface and the exterior surface and a second end moveably attached to the housing. Further, the assembly includes a barrier disposed across the collar opening with a slit therethrough and including an anti-microbial material. The collar is moveable relative to the housing so that the inlet end of the housing depends past the exterior surface of the collar through the slit in the barrier. A kit may include the assembly and a catheter having a first end attached to the outlet opening.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: July 27, 2010
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Dustin C. Cawthon, Birendra K. Lal
  • Patent number: 7712725
    Abstract: A drain valve assembly having a stem which can be inserted into a crankcase or other fluid reservoir, wherein the stem is connected to a housing which encloses a sealing barrel movably secured and sealed in the connected stem and housing, and wherein the sealing barrel can be manipulated in a single direction from the exterior of the assembly to open or close a fluid passage through the assembly. An end cap may also be provided tethered to the housing for sealing off the fluid passage. Selected movement of the sealing barrel in the connected stem and housing may also be used to control the volume and flow of fluid through the fluid passage.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: May 11, 2010
    Assignee: Richco Inc.
    Inventor: Sam Jang
  • Publication number: 20080099714
    Abstract: A valve is described. The valve includes a valve body that at least partially defining a valve envelope and a plurality of circuit substrates which is disposed within the valve envelope. At least one circuit substrates in the plurality of circuit substrates includes circuitry for controlling the valve. A circuit module is also described. A method is described for integrating circuit modules into a plurality of arrangements to provide various electronic functions and applications; these applications may be incorporated into a valve body, in support of a more complex electronic assembly, or as stand-alone electronic assemblies.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 1, 2008
    Inventor: Daniel S. Cook
  • Patent number: 6719273
    Abstract: An improved water outlet valve structure of a water bag mouthpiece, which includes: a nozzle which is composed of a supporting frame and a soft suction portion wrapping around the supporting frame; a threaded base which has a base, a threaded connecting section extended from one end of the base, and a connecting section extended from the other end of the base; an extended section coupled to the connecting section and disposed on one end of said mouthpiece; a sleeve with notches provided around its periphery; an annular section disposed in said sleeve; and a receiving section which is mounted in-between said connecting section and said extended section of the threaded connecting section. By means of the above structures, a user can easily operate the functions of water releasing and water stopping via the mouthpiece of the water bag and the present invention can be securely fixed to the duct of the water bag for the user's convenience.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: April 13, 2004
    Inventor: Shih-Sheng Yang
  • Patent number: 6557584
    Abstract: A brewing machine with brewing water flow control mechanisms for controlling flow between chambers, includes a filling chamber in fluid connection with a heating reservoir. In one aspect of the invention, a control chamber with a sealable opening is formed about a drain hole in the filling chamber so that water must flow through the control chamber to reach the reservoir, and fluid access to the control chamber is controlled by a seal which engages the opening in the control chamber. Engagement of the seal with the opening in the control chamber is controlled by operation of a lid which covers the filling chamber. In another aspect of the invention, a flow rate control valve assembly is at least partially housed within the control chamber and has a portion which is proximate to the drain hole in the filling chamber connected to the reservoir, whereby a rate of flow from the filling chamber to the reservoir is selectively controllable by adjustment of the flow rate control valve.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: May 6, 2003
    Assignee: Sunbeam Products, Inc.
    Inventors: Eric E. Lucas, Robert C. Cheich, Mark V. Gorjanc, Marc L. Vitantonio
  • Patent number: 6517050
    Abstract: Disclosed is a two way valve that has a valve chamber having a first valve chamber opening bounded and a fluid flow opening. A chamber shuttle, adapted to travel within the valve chamber, is characterized by a chamber shuttle cavity and has a first chamber shuttle cavity opening and a second chamber shuttle cavity opening. A shuttle-plug that is biased by a force established within the valve closes the chamber shuttle cavity to establish a closed fluid-flow state. The chamber shuttle is also movable against the biasing force thereby resisting the shuttle-plug by a structure fixed relative to the valve chamber and opening the chamber shuttle cavity to establish a second fluid-flow state. A preferred embodiment of the invention is incorporated in a valve construction of components that incorporate aspects of the disclosed invention.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: February 11, 2003
    Assignee: Parker-Hannifin Corporation
    Inventor: William V. Pabst
  • Publication number: 20010048092
    Abstract: Governor valve device for a pressure fluid operated tool having a ball valve (23, 24), the valve ball (24) of which is provided in a cavity (25), open towards the seal ring (23) of the valve, in a movable piston (26). A spring-loaded member (30) urges the valve ball against the seal ring. By movement of the piston, the ball can be moved out of and into, respectively, a sealing position against the seal ring in order to permit and to prevent, respectively, the passage of pressure fluid to a drive chamber (17) in the tool.
    Type: Application
    Filed: May 16, 2001
    Publication date: December 6, 2001
    Inventor: Henry Wiklund
  • Patent number: 6113071
    Abstract: A gas flow restriction device for restricting the flow rate of heated gas in a conduit. The flow restriction device is essentially a two piece assembly that includes a valve housing and a valve gate structure that sits within the housing. The valve housing has a first end, a second end and an open central passage extending from the first end to the second end. The open central passage includes a internally tapered section proximate its first end and an internally threaded section proximate its second end. The valve gate structure has a first end a second end, a externally tapered section proximate its first end and an externally threaded section proximate its second end. The valve gate structure passes into the open central passage of the valve housing so that the externally tapered section of the valve gate structure is disposed a predetermined distance within the internally tapered section of the valve housing.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: September 5, 2000
    Inventor: Peter R. Bossard
  • Patent number: 5938176
    Abstract: An aim of the invention is to provide a simple and effective one-piece tap which can be readily and economically manufactured. A tap for a liquid container is made from natural or synthetic rubber or a resilient plastics material. It has a base portion 10 having an orifice 12 which serves as a liquid inlet therein, the base portion embodying a liquid exit means 14. It also has a resilient deformable closure portion 20, the closure portion being constructed to make a resilient snap-on connection with the periphery of the base portion, the closure portion being manipulatable and having a centrally located plug 22 extending towards the base portion. This plug can obturate orifice 12 thereby closing the liquid inlet.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: August 17, 1999
    Assignee: Bristol-Myers Squibb Company
    Inventor: Malcolm Ian Falconer
  • Patent number: 5788220
    Abstract: This invention consists of a linearly operated gas vent assembly in which the dynamic range of gas flow is increased by use of a low drag actuator profile. The structure consists generally of a swivel vent module and a housing module, in which the swivel vent assembly regulates the volume flow of air and the housing module imparts spacial control over the direction of air flow. The swivel vent module comprises four sub-modules: a ball cylinder, an actuator cylinder, a valve disk, and an arrangement of hinging elements to rotate the disk. The ball cylinder is a cylindrical shell and constitutes an outer case of the swivel vent module. The outside surface of the ball cylinder is shaped as a segment of a sphere, with the inside surface being shaped as a straight cylinder and containing a circular seal grove. The actuator cylinder is a cylindrical shell with an outer diameter adapted to slidably conform to the inside of the ball cylinder.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: August 4, 1998
    Inventor: Gary C. Meziere, Sr.
  • Patent number: 5538040
    Abstract: A valve for controlling flow of air comprising in combination a valve housing having a chamber, inlet and outlet air flow paths communicating with the chamber adjacent oppositely facing sides thereof, and a valve seat arranged in one of the flow paths; a valve sleeve supported for rotation within the chamber and having a through opening provided with opposite ends arranged for placing the inlet and outlet air flow paths in flow communication; and a valve member having sealing and operating ends, the sealing end being arranged within one of the flow paths for removable engagement with the valve seat for selectively blocking and unblocking the flow of air through one of the flow paths, the operating end extending into the chamber from one of the flow paths and through one of the opposite ends for receipt within the through opening of the valve sleeve.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: July 23, 1996
    Assignee: Dynabrade, Inc.
    Inventors: Paul W. Huber, David G. Heckmiller, Jr.
  • Patent number: 5156603
    Abstract: A slide valve, especially a drain valve, for collection bags, such as urine collecting bags, including an external tubular member and an internal tubular member, both members having a flow passage and being telescoped inside one another in an axially slidable manner. The external tubular member is provided with a valve body and the internal tubular member is provided with a valve seat mating the valve body of the external tubular member. The two tubular members are mutually slidable between a first position, in which the valve body sealingly engages the valve seat to prevent passage through the valve, and a second position in which passage is allowed through the valve. The external tubular member includes a first finger engaging portion at its outer circumference, and the internal tubular member comprises a second finger engaging portion situated substantially diametrically opposite the first finger engaging portion.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: October 20, 1992
    Assignee: Svend Andersen Plastic Industri A/S
    Inventor: Bent W. Olsen
  • Patent number: 5071411
    Abstract: A pressure-actuated valve for sealing a flow conduit. The valve comprises a housing, and a tubular resilient valve carried within the housing. The tubular valve defines a lumen extending through the housing. Means are provided for varying the pressure in the space within the housing but outside of the tubular valve. Thus, the tubular valve can be urged to collapse inwardly by specific pressure applied.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: December 10, 1991
    Assignee: Cordis Corporation
    Inventor: Richard A. Hillstead
  • Patent number: 4807700
    Abstract: An improved tubing hanger having an annulus passageway therethrough and with an improved annulus control valve therein including an annular hanger body having an annulus passageway extending therethrough with a chamber interrupting said passageway and a valve ball positioned within said chamber for rotation responsive to rotation of gear means associated with said valve ball, a sleeve slidably positioned within said hanger body and having a rack secured thereto and engaging said gear means so that movement of said sleeve controls the position of said valve ball to open and close flow through said annulus passageway.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: February 28, 1989
    Assignee: Cameron Iron Works USA, Inc.
    Inventor: Robert L. Wilkins
  • Patent number: 4794944
    Abstract: A service valve includes a valve body (12) having an upper chamber (18), a lower chamber (20), an open top end (22) and an open bottom end (24). The lower chamber (20) includes an inlet opening (26) and an outlet opening (28). A valve member (14) is disposed in the valve body (12) and is molded of plastic material to form a unitary body including a plug portion (36) having a flow passage (38) therethrough and an actuator portion (34). The plug portion (36) is rotatable in the valve body (12) between an open position where the flow passage (38) is aligned with the inlet (26) and outlet (28) openings and a closed position where the flow passage (38) is out of alignment with the inlet (26) and outlet (28) openings. The actuator portion (34) extends outwardly from the plug portion (36) through one of the chambers (18, 20). First ( 50) and second (51) seals act between the plug portion (36) and the valve body (12) for sealing against leakage from the inlet opening (26) and outlet opening (28).
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: January 3, 1989
    Assignee: Dresser Industries, Inc.
    Inventor: Ralph E. Henry
  • Patent number: 4744390
    Abstract: A plastic service valve includes a valve body of molded plastic having upper and lower chambers. The valve body is open at the top and bottom ends. The lower chamber includes inlet and outlet openings. A thrust seat is formed within the upper chamber between the open top end and the inlet and outlet openings in the lower chamber. A valve member is disposed in the valve body and positioned against the thrust seat. Structure is provided in the valve member and adjacent to the thrust seat for locking the valve member to the valve body. The valve member is molded of plastic material to form a unitary body including a plug portion and an actuator portion. The plug portion is rotatable in the valve body between an open position which is aligned with the inlet and outlet openings of the lower chamber of the valve body and a closed position. The actuator portion extends upwardly through the upper chamber portion and receives an operating nut.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: May 17, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: Ralph E. Henry
  • Patent number: 4566541
    Abstract: A connector for incorporation in a production tube for an oil well, below the packer, comprises a closing flap which closes when a first retractable ball seat is displaced downwards, in order to provide a safety device during the installation of the well head, and above the flap, a second retractable ball seat which, when it is moved away axially downwards, causes the flap to open and be maintained in the open position, in order to put the well in a state of production. The balls seats are provided in the upper portions of two resiliently radially expandable sleeves and are displaced downwardly by the application of fluid pressure to the space within the production tube above their other closure of the respective seat by a ball dropped on to the seat from above.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: January 28, 1986
    Assignee: Compagnie Francaise des Petroles
    Inventors: Jacques L. Moussy, Jean A. Lescoeur
  • Patent number: 4511120
    Abstract: A valve includes a molded plastic body portion having an internal chamber with upper and lower portions. Fittings connect the valve to conduits of a piping system. A valve seat surrounds inlet and outlet openings in the chamber lower portion. A plastic plug member is rotatably positioned in the valve seat. The plug member is a molded unitary element. The valve body portion and plug member have a substantially uniform wall thickness throughout. The plug member includes an integral plug portion and an actuator portion which facilitates ease of disassembly of the valve for repair. The plug portion has a flow passage which communicates with the inlet and outlet openings in the valve seat and is rotatable between open and closed valve positions. Seals retained on the plug portion engage the valve seat in the closed position. The actuator portion includes shearable stops which permit rotational operation of the plug member upon failure of the stops under excessive torque.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: April 16, 1985
    Assignee: Kerotest Manufacturing Corp.
    Inventors: Richard W. Conley, Richard P. Tremblay, Charles W. Bolam, James E. Logan, David A. Krueger
  • Patent number: 4256106
    Abstract: A device, particularly suitable as a connector, comprised of a housing having an open end closed by an elastomeric membrane. The membrane has at least one preformed opening, which is normally closed and which is opened upon deformation of the membrane, with the opening being reclosed upon release of the deformation force. The housing interior may include means for applying a deformation force to the membrane to open the opening therein.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: March 17, 1981
    Assignee: Becton, Dickinson and Company
    Inventor: Bernard A. Shoor
  • Patent number: 4110057
    Abstract: A mandrel valve and gas lift valve mechanism that is adapted to be interconnected in a production tubing string within a well in order to produce fluid from the well under conventional gas lift methods. The gas lift valve includes a housing carried by a mandrel. The housing has a ball type valve element disposed in a valve chamber. Within the mandrel there is a linearly moving valve actuating sleeve having a cam which coacts with a stem on the ball valve so that linear movement of the sleeve causes rotation of the ball valve.
    Type: Grant
    Filed: June 7, 1977
    Date of Patent: August 29, 1978
    Assignee: McMurry Oil Tools, Inc.
    Inventors: Everett D. McMurry, Bolling A. Abercrombie
  • Patent number: 3960366
    Abstract: The apparatus and method provides the ability to selectively treat a producing zone in a well and to gravel pack an annulus in the well casing outside a screen type liner pipe. A tubing string extending from the surface of the well bore is connected to a packer by a crossover valve. Flow down the tubing string is directed to an annulus below the packer, then inwardly through the screen type liner, then upward through the crossover into the annulus above the packer and then to the earth's surface. Communication from the crossover to the annulus above the packer may be selectively closed to permit a treating pressure to be exerted down the tubing to force a treating fluid into the producing zone. The treating pressure is isolated from the casing above the packer to protect the casing above the packer.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: June 1, 1976
    Assignee: Dresser Industries, Inc.
    Inventors: Dave L. Abney, Robert C. Williams, Horace E. Gilbert