Rotary Motion Of A Reciprocating Valve Patents (Class 137/331)
  • Patent number: 9309878
    Abstract: A poppet valve for a compressor, a piston compressor including such a poppet valve, and a repair kit for a poppet valve. The poppet valve has a cage, a valve seat and a plurality of closing elements, wherein the cage has a plurality of axial bores open towards the valve seat.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: April 12, 2016
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Michele Columpsi
  • Patent number: 9261162
    Abstract: Provided is a damping force controlling valve assembly for a shock absorber using a solenoid part for variation of a damping force. The damping force controlling valve assembly includes: a first valve body having an inlet passage through which a working fluid flows in from the shock absorber; a second valve body coupled to the first valve body with a gap therebetween; a main valve disposed at the front of a back-pressure chamber to resist the working fluid flowing through the inlet passage; and a valve spring disposed in the gap between the first valve body and the second valve body and elastically supporting the main valve.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: February 16, 2016
    Assignee: MANDO CORPORATION
    Inventor: Young Whan Jee
  • Patent number: 9157539
    Abstract: A pressure-control valve device for a fluid, having at least one inlet area and first and second outlet areas that can be flow-connected to one another by two seat valves coupled to one another, in which a fluid flow from the inlet area to the first and second outlet areas can be adjusted by the first seat valve and a fluid flow between the first and second outlet areas can be adjusted by the second seat valve. The first seat valve is designed as a valve aperture with a valve opening and a valve control edge and with a ball-shaped closing element that co-operates with the valve control edge. The valve opening and the ball-shaped closing element are designed such that the ratio of the diameter of the valve opening to the diameter of the ball-shaped closing element is equal to at least 0.75.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: October 13, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Karlheinz Mayr, Markus Moosmann, Frank Hamma, Hubert Remmlinger
  • Patent number: 9103467
    Abstract: Embodiments of the invention provide a vibration damping system including a fixed element, a moveable element arranged to move linearly along an axis relative to the fixed element in response to a non-mechanical force, and an inerter element coupling the moveable element to the fixed element, and configured to convert the linear motion of the moveable element into rotational motion about the axis. The vibration damping system may be applied to many types of valves. In some embodiments, the vibration damping system may be applied to pressure relief valves. In some embodiments, the moveable element rotates to provide inertial damping. In other embodiments, the inerter element rotates to provide inertial damping.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: August 11, 2015
    Assignee: Pentair Flow Services AG
    Inventor: Michael McNeely
  • Patent number: 9091094
    Abstract: A cleaning head for an in-floor pool cleaning system includes a sleeve with a top opening and an insert configured to be retained within the sleeve. The insert has a first body portion with an aperture wherein the first body portion is configured to fit through the top opening, and a second body portion that is configured to not fit through the top opening. A passage runs through the insert to the aperture. The insert has a first position in which it is retained in the sleeve. When water pressure is applied to the bottom of the cleaning head, the insert is moved upward to a second position so the aperture extends beyond the top opening in the sleeve and pressurized water exists the aperture to move debris. The cleaning head also includes a conical spring to bias the insert towards the first position.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: July 28, 2015
    Assignee: Blue Square Manufacturing, LLC
    Inventor: Paul Gerald Malinasky, Jr.
  • Patent number: 7997243
    Abstract: An improved ball type valve rotator is provided that includes a main body segment having a bottom wall with an upper surface, and a body cap that overlies the main body segment. A ball cages assembly is housed between the main body segment and the body cap. The ball cages assembly includes multiple ramps with lower surfaces that are spaced from the bottom wall upper surface of the main body segment. This allows the multiple ramps to deflect toward the bottom wall upper surface of the main body segment. The multiple ramps can deflect independently of each other, so that different distances can be defined between the different ramps and the bottom wall upper surface of the main body segment. In so doing, the ball cage assembly can accommodate non-uniform applications of force into the valve rotator.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: August 16, 2011
    Inventor: Bronislaw B. Florek
  • Patent number: 7523760
    Abstract: The invention relates to a valve rotating device comprising a basic body, a cover which is rotatable and axially displaceable relative to the basic body about an axis of rotation, and a rotating device to rotate the basic body relative to the cover about the axis of rotation. In accordance with the invention an increased service life is achieved in that the rotating device has a freewheel which is in operative connection with the cover on the one hand and the basic body on the other hand. In one rotational direction the freewheel can be coupled in a rotationally fixed manner with the cover or the basic body, whereas in the opposite rotational direction the freewheel is rotatable with respect to the cover and the basic body respectively.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: April 28, 2009
    Inventor: Friedrich Engesser
  • Publication number: 20080223450
    Abstract: A flow control valve includes a seal member disposed within an annular space. The annular space is defined between at least one of bearing fitting portions of a flow path defining member and a corresponding valve shaft portion of a valve member opposing to each other in a radial direction with respect to an axis of the valve shaft portion and between an end face of a corresponding bearing and an end face of a valve body portion opposing to each other in a direction of the axis. The seal member can seal between the bearing fitting portion and the corresponding valve shaft portion with respect to the radial direction and can also seal between the corresponding bearing and the valve body portion with respect to the axial direction.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 18, 2008
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Hisashi KINO, Tomiharu ISOGAI, Yasuhiro NISHIKAWA, Masaru NAKAMURA, Hideki ASANO, Hiroki SHIMADA
  • Patent number: 7287541
    Abstract: A system, apparatus and method of controlling the flow of a fluid are provided. In accordance with one embodiment of the present invention, a flow control device includes a valve having a flow path defined therethrough and a valve seat in communication with the flow path with a valve stem disposed in the valve seat. The valve stem and valve seat are cooperatively configured to cause mutual relative linear displacement thereof in response to rotation of the valve stem. A gear member is coupled with the rotary stem and a linear positioning member includes a portion which complementarily engages the gear member. Upon displacement of the linear positioning member along a first axis, the gear member and rotary valve stem are rotated about a second axis and the valve stem and valve seat are mutually linearly displaced to alter the flow of fluid through the valve.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: October 30, 2007
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Ryan D. McMurtrey, Daniel M. Ginosar, Joesph V. Burch
  • Patent number: 6619935
    Abstract: The invention relates to a mixing valve with at least two inlets and at least one outlet. A control element is configured as a pump wheel controls the fluid connection between the inlets and the outlets. The pump wheel is connected to a hollow shaft which is rotated by an electric motor and axially displaced through selective actuation of axially displaced stator segments. In a fist axial position of the pump wheel, a first inlet is communicated with the outlet and a second inlet is shut off, and in a second axial position the second inlet is communicated with the outlet and the first inlet is shut off. In a third an intermediate axial position, the two inlets communicate with the outlet allowing fluid mixing within a pump chamber. In a further embodiment of the device, the pump wheel includes a rotatable member to impel fluid through the pump chamber and the outlet. The device unites the mixing valve and the circulation pump in one fitting.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: September 16, 2003
    Assignee: Honeywell AG
    Inventors: Hans-Ulrich Kluth, Wolfgang Muller
  • Patent number: 6568415
    Abstract: A storing device is disclosed having a gas-sealing device and/or a heating device provided for a pipe connecting a storing tank for an easily polymerizable and/or coagulating liquid substance and a liquid sealing implement-protecting device. A method for the control of the pressure in the storing device is also disclosed. This invention contemplates protecting a storing device against deformation and fracture.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: May 27, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kenji Nakahara, Takeshi Nishimura, Kazuhiko Sakamoto, Hiroo Iwato, Masakatsu Mori
  • Patent number: 6460561
    Abstract: Pressurised medium apparatus with a valve.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: October 8, 2002
    Assignee: LuK Getriebe-Systeme GmbH
    Inventor: Günter Ebinger
  • Publication number: 20020100503
    Abstract: A sanitary diaphragm valve is provided that includes a generally dome shaped diaphragm having a central boss that can be connected to or driven by a valve actuator. The diaphragm includes an outer peripheral edge and a relatively thin web portion that connects the boss to the outer edge. In one embodiment, the web portion is arcuate or dome shaped. The thinner web portion permits the diaphragm to have an extended cycle life and to permit the valve to operate at higher fluid pressures. The thin web may be defined by two different contoured surfaces, one convex and the other concave, such as formed by two radiuses. A valve body is provided that includes a bowl shaped valve cavity. This valve cavity includes an outer vertical edge to permit more thorough cleaning and to eliminate entrapment areas. The valve assembly provides support surfaces for the diaphragm that reduces stress on the diaphragm particularly at higher operating pressures.
    Type: Application
    Filed: March 28, 2002
    Publication date: August 1, 2002
    Inventors: Ronnie A. Browne, David C. Kerg
  • Patent number: 6334604
    Abstract: A direct drive servo-valve wherein rotational motion of a drive motor rotor is converted into linear motion of a spool valve. The drive motor includes a shaft which has affixed to the end thereof a ball which engages the spool valve. The ball is affixed to the shaft by providing a bore internally of the shaft which is disposed eccentrically to the longitudinal axis of the shaft. The ball has a portion thereof ground of so as to provide an integral protrusion which is received within the bore in the end of the shaft. The ball is permanently affixed to the shaft by brazing the protrusion into the bore and a planar surface which surrounds the base of the protrusion to the end of the shaft against which it mates.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: January 1, 2002
    Assignee: HR Textron, Inc.
    Inventor: Jon Roth
  • Patent number: 6273121
    Abstract: This valve is applicable in conduction of bauxite in pipes and is meant to allow the self-cleaning of the valve with the aid of a locking cap which connects the drive crown and the valve shaft, causing the rotation of said crown to be transmitted to the valve shaft, which as it rotates rubs on the valve seats, thus removing the depositions.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: August 14, 2001
    Assignee: Ampo, S. Coop.
    Inventor: Juan José Goñi Usabiaga
  • Patent number: 6119716
    Abstract: A valve comprising a valve housing (10), having a valve seat (18) therein, a valve member (16) moveable via a valve spindle (15) between positions spaced from and seated on the valve seat. The valve member is required to lap a plurality of times on the valve seat to compensate for any variation of tolerance between the valve member and the valve seat resulting from build up of medium or erosion. The valve spindle extends outwardly from the valve housing and a pair of pillars (28) extend from the valve housing to a bridge member (30) whilst the collar (36) in threadable engagement with the valve spindle extends to and surrounds the pillars to be axially moveable relative thereto. Belleville washers (41) are provided between the underside of the collar and washers (47) forming abutments carried by the pillars. The Belleville washers compensate for relative movement between the valve spindle and the valve housing during lapping action of the valve member on the valve seat.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: September 19, 2000
    Assignee: Keystone Pacific Pty., Ltd.
    Inventor: Nigel Wright
  • Patent number: 6092550
    Abstract: A flow control device includes a first body and a second body; a threaded engagement for clamping the bodies together in an axially aligned relationship; a diaphragm seal that is disposed axially between the first and second bodies to form a seal there between; each of the first and second bodies having a generally flat surface portion near its respective outer periphery; at least one of the generally flat surfaces being adjacent an outer corner thereof; the diaphragm being singularly clamped between the generally flat portions; the diaphragm having an outer peripheral portion adjacent the generally flat surfaces and that bends over and seals at the corner.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: July 25, 2000
    Assignee: Swagelok Marketing Co.
    Inventors: James E. Gotch, Dale J. Kitchen, Maria T. Longo, Victor N. Rasanow, Philip J. Smith
  • Patent number: 5893521
    Abstract: The invention provides a hot water safety discharge nozzle and a water heater pressure/temperature relief discharge system having such a nozzle. The nozzle results in the decrease of both the pressure and temperature of the discharged water by spraying the water as small droplets. Generally, the nozzle includes a cap with a weep hole, wherein the cap substantially blocks the stream of discharge water, and a series of metered radial orifices which break the discharge stream up into small particles, and distribute those particles radially. The ambient air surrounding the nozzle cools the small droplets as they travel from the nozzle. Additionally, the perforate nozzle structure prevents insects and rodents from entering and nesting within the pipe, and also eliminates the danger of small objects, including human fingers, from blocking the discharge pipe.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: April 13, 1999
    Inventor: John Paul Bertain
  • Patent number: 5234014
    Abstract: A mechanical fuel control governor employs a flyweight assembly for lifting the spindle of a fuel valve and allowing fuel to be bypassed from a high pressure line. The spindle is rotated via a fluid coupling between the ball head and the drive spindle such that the valve spindle rotates at a fraction of the ball head speed and whereby valve clearance and spindle leakage is reduced without reduction in the speed of the ball head.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: August 10, 1993
    Assignee: Boeing Company
    Inventor: Gilbert K. Queitzsch, Jr.
  • Patent number: 4793377
    Abstract: A direct drive servo valve includes a valve housing having a cylindrical bore and a valve spool mounted for movement in the bore for controlling fluid flow through said valve housing. The valve spool has a drive well located in the spool transverse of its longitudinal axis. A motor secured to the valve housing includes a rotor which is rotated in response to a drive signal applied to stator windings of the motor. A shaft attached to the rotor for rotation therewith includes a substantially spherical drive tip, the spherical tip positioned eccentrically to the longitudinal axis of the shaft and being close fitted into the drive well. In operation, as the shaft rotates through a given angular rotation, the spherical tip rotates in a circular path to provide linear displacement and rotational motion to the valve spool.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: December 27, 1988
    Assignee: E-Systems, Inc.
    Inventors: Larry E. Haynes, Larry L. Lucas
  • Patent number: 4790346
    Abstract: A fluid flow control valve with a rotatable valve member offset from its outlet seat so it engages in a different position at each closure and requires less opening force.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: December 13, 1988
    Inventors: Lawrence A. Kolze, Barbara J. Kolze
  • Patent number: 4672992
    Abstract: Ball drive mechanism includes a ball-like member on an eccentric output shaft of a rotary force motor which is received in a transversely extending cylindrical socket on a valve member. The outer diameter of the ball-like member is substantially the same as the inner diameter of the cylindrical socket to provide line contact therebetween at some distance radially offset from the longitudinal axis of the valve member which is at least as great as the eccentric offset, whereby the rotary output of the rotary force motor is translated into both linear and rotary movement of the valve member.
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: June 16, 1987
    Assignee: Pneumo Corporation
    Inventors: Robert D. Vanderlaan, John W. Meulendyk
  • Patent number: 4627461
    Abstract: A self-cleaning valve has its closure member rotated against a valve seat during closing, by an externally threaded spindle rotated by an actuator. The spindle has a threaded portion screwed through an internally threaded collar which is pressed by a spring towards the valve seat. When the member engages the valve seat further rotation of the spindle causes the collar to ride up the spindle against the spring bias which maintains the closing force on the member while allowing it to rotate to clean the closing surfaces.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: December 9, 1986
    Assignee: K. J. Baillie Pty. Ltd.
    Inventor: Patrick J. Gordon
  • Patent number: 4597408
    Abstract: A poppet valve has a threaded end of its stem. A coiled valve spring is provided with a valve spring retainer having a central bore for the valve stem, a circular groove for the spring, and a first ball bearing race on the opposite face from the spring groove. A valve retainer has a threaded bore and a second ball bearing race. A set of ball bearings is disposed in the spring retainer race, the valve stem is inserted through the spring and spring retainer, and the valve retainer is threaded onto the valve stem engaging the ball bearings by the second race. The ball bearing assembly thus permits the valve to rotate with respect to the spring and spring retainer during operation. A lock nut is used to lock the assembly.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: July 1, 1986
    Inventor: Mark A. Canter
  • Patent number: 4573494
    Abstract: Spherical ball drive mechanism for directly coupling a rotary force motor to a valve member, includes a spherical bearing assembly at one end of the valve member. The spherical bearing assembly consists of an outer race member having a concave spherical inner bearing surface and a spherical bearing member having a convex spherical outer bearing surface complementary to the concave spherical inner bearing surface of the outer race member and received therein. The outer race member has a longitudinal axis substantially perpendicular to the longitudinal axis of the valve member and a transverse center axis radially offset from the longitudinal axis of the valve member. An eccentric output shaft of the rotary force motor extends substantially perpendicular to the longitudinal axis of the valve member for receipt in a longitudinal bore in the spherical bearing member.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: March 4, 1986
    Assignee: Pneumo Corporation
    Inventor: Kenneth C. Spurbeck
  • Patent number: 4487215
    Abstract: Venting gas flow from a fuel tank or the like enters through tangential inlets into a spin chamber, influencing a closure ball in said chamber to spin or orbit around an upper conical wall portion of the spin chamber. The spinning action keeps the closure ball from seating in an outlet opening formed at the upper end of the spin chamber. The closure ball does seat in response to liquid rising in the spin chamber or tilting of the spin chamber beyond a predetermined angle of tilt. A vibrating mass positioned on the outlet side of the outlet opening includes a central striker portion which contacts the closure ball whenever it tends to seat in response to shock forces or some condition other than the presence of liquid activated buoyancy forces or tilt activated gravity forces.
    Type: Grant
    Filed: August 25, 1983
    Date of Patent: December 11, 1984
    Assignee: GT Development Corporation
    Inventor: Charles J. Green
  • Patent number: 4465091
    Abstract: An improved, motorized Lunkenheimer valve is provided having two independently actuated drive means for operating the valve, one of which moves the valve stem and disc longitudinally along the axis of the stem and the other of which rotates the stem and disc about the longitudinal axis of the stem. The two drive means can be operated concurrently to effect more rapid opening or closing, and countercurrently to provide a continuous grinding operation when the valve is in the closed position.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: August 14, 1984
    Assignee: Kaiser Aluminum & Chemical Corporation
    Inventor: Leander L. Keller
  • Patent number: 4460009
    Abstract: A valve stem actuator for a slurry valve or the like includes a support frame extending from the valve body to a linear operator having a cylinder and piston. Means are provided for connecting the piston rod to the valve stem and means reciprocally mounted on the support frame rotate the valve stem with respect to the valve body independently of the linear movement of the valve stem to dislodge accumulated crust to permit the valve disc to properly seat to prevent fluid flow through the valve. The linear operator is preferably pneumatically or hydraulically actuated and the rotary actuator preferably comprises an air or hydraulically actuated rack engageable with the valve stem. The valve stem actuator is useful for new valves or for retrofit of present slurry valves or the like.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: July 17, 1984
    Assignee: Ralph A. Hiller Company
    Inventors: James R. Nanci, James MacGregor
  • Patent number: 4457325
    Abstract: A fuel tank cap (10,130) having a venting valve (56,56A) adapted to relieve pressure and temperature in the tank and prevent spilling fuel from the tank. A cover plate (28,28A) is automatically (34,34A) removed from the cap by excessive temperature so as to allow fluid in the tank to escape. The valve body (56) has a spin chamber (98), having generally circular cross sections (102,104) and at least one tangentially directed side wall inlet opening (106). The chamber cross sections decrease in diameter upwardly of the inlet opening (88) to a point below a circular outlet opening whereby gas venting through the chamber spins a light weight buoyant ball (94) around the chamber so as to prevent the ball from closing during venting. The ball (94) is lifted onto a seat (92) at the outlet to close it when liquid enters the chamber to a predetermined level. A heavy ball (96) in the chamber holds the light ball (94) on the seat when the chamber has been tilted a predetermined amount.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: July 3, 1984
    Assignee: GT Development Corporation
    Inventor: Charles J. Green
  • Patent number: 4346728
    Abstract: A dual mode valve actuator for automatically controlling the operation of a valve comprises a first reversible drive motor and a first planetary drive assembly which operate to move the valve stem axially during a first mode of operation. The actuator further comprises a second drive motor and a second planetary drive assembly which cooperate with the first planetary drive assembly to rotate the valve stem without axial movement during a second mode of operation. A control means is provided to control the operational mode of the actuator.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: August 31, 1982
    Assignee: Anchor/Darling Industries, Inc.
    Inventor: Harry E. Sulzer
  • Patent number: 4338961
    Abstract: A valve structure is provided which can be opened and closed under operating conditions without any adjustment in conditions existing in the system in which the valve is an element. The valve element can be turned with respect to the seat to provide for proper relation between the valve element and the valve seat to grind one with respect to the other during the operating cycle. The valve also includes a clutch having a radial acting trip overload that prevents the valve seat from being damaged during grinding which is effected by turning the valve through the clutch while moving the valve toward the seat during the closing cycle and produces a controlled grinding operation independent of pressure within the valve.When the valve is operated in the opposite direction, the clutch disengages and the actuator mechanism encounters only the thrust forces during the opening cycle. This allows the valve to be easily opened without overloading the system.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: July 13, 1982
    Assignee: Anchor/Darling Valve Company
    Inventor: Anatole N. Karpenko
  • Patent number: 4325398
    Abstract: A tank venting, pressure and temperature relieving, and spill preventing valve for fuel tanks. The valve has a spin chamber, having generally circular cross sections and at least one side wall inlet opening that is tangentially directed with respect to the circumferences of the cross sections. There is a circular outlet at a normally upper and open end of the chamber. The chamber cross sections decrease in diameter upwardly of the inlet opening to below the outlet opening whereby gas venting through the chamber spins a light weight, bouyant ball around the chamber so as to prevent the ball from closing during venting. The ball valve is adapted to be lifted to seat on the outlet to close it when liquid enters the chamber to a predetermined level. A heavy ball in the chamber holds the light weight valve ball on the seat when the chamber has been tilted a predetermined amount.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: April 20, 1982
    Assignee: G. T. Corporation
    Inventor: Charles J. Green
  • Patent number: 4241706
    Abstract: A rotator assembly for a poppet valve employed in an internal combustion engine employs a garter spring mounted in a circular groove concentric with the valve axis. A rotator plate rests on the garter spring so that the plate turns incrementally through a small arc each time the valve completes its opening and closing cycle. Concentric coil compression springs resist opening movement of the poppet valve and both of these springs are supported by a valve retainer which rests on the rotator plate. The lower ends of both springs are supported at the same elevation and the springs are centralized by means of integral fingers struck from the retainer ring to hold one or both springs in central position.
    Type: Grant
    Filed: May 8, 1979
    Date of Patent: December 30, 1980
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shinichi Shimada, Takenori Makino
  • Patent number: 4175505
    Abstract: A rotator assembly for a poppet valve employed in an internal combustion engine employs a garter spring mounted in a circular groove concentric with the valve axis. A rotator plate rests on the garter spring so that the plate turns incrementally through a small arc each time the valve completes its opening and closing cycle. Concentric coil compression springs resist opening movement of the poppet valve and both of these springs are supported by a valve retainer which rests on the rotator plate. The lower ends of both springs are supported at the same elevation and the springs are centralized by means of integral fingers struck from the retainer ring to hold one or both springs in central position.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: November 27, 1979
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shinichi Shimada, Takenori Makino
  • Patent number: 4175558
    Abstract: A parenteral liquid administering device includes an enlarged, liquid-holding burette-type chamber for receiving measured aliquots of liquid from a source. The burette has a bottom flow aperture with a valve controlling flow through the aperture. The valve includes a buoyant float ball and a valve seat positioned about the bottom flow aperture to receive the ball, in the absence of sufficient liquid to float it, in air-tight, sealing relation. Apertured retention means are provided surrounding the ball which are proportioned to permit it to float in spaced relation from the valve seat in the presence of liquid passing through the apertured retention means.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: November 27, 1979
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: John M. Hess, III, Herbert Mittleman
  • Patent number: 4134372
    Abstract: A device for rotating a reciprocating valve executing alternating opening and closing strokes has an overrunning clutch coupled to the valve stem; a control lever; a first articulation connecting the control lever to the overrunning clutch; and a second articulation supporting the control lever at a distance from the overrunning clutch. The control lever is arranged to impart to the overrunning clutch a torque derived from the reciprocating motion of the valve. The overrunning clutch transmits the torque to the stem for effecting rotation thereof about the stem axis solely during the closing strokes. The second articulation is situated at a predetermined fixed location selected such that a line connecting the articulations defines a first angle with the valve stem axis at the end of each closing stroke and a second angle at the end of each opening stroke. The first angle is acute and the second angle is at the most 90.degree. and is greater than the first angle.
    Type: Grant
    Filed: October 12, 1977
    Date of Patent: January 16, 1979
    Assignee: Ringspann Albrecht Maurer K.G.
    Inventors: Ruprecht Maurer, Karlheinz Timtner
  • Patent number: 4094280
    Abstract: An improved garter spring actuated valve rotator device wherein annular spring damping means are included internally of the coils of the garter spring.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: June 13, 1978
    Assignee: TRW Inc.
    Inventor: Stanley H. Updike
  • Patent number: 4006751
    Abstract: A method and an apparatus for imparting rotational movement to a control rod which is reciprocably inserted in a hydraulic circuit for controlling flows of fluid pressure from a pressure source to an actuator, wherein the operating fluid pressure is by-passed to a rotating mechanism which is disengageably associated with one end of the control rod, thereby driving the rotating mechanism to engage and rotate the control rod through a certain angle upon actuation of the hydraulic circuit.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: February 8, 1977
    Assignee: Teijin Seiki Co., Ltd.
    Inventor: Toshio Kamimura
  • Patent number: 3952713
    Abstract: A rotator for a valve which is reciprocable along a longitudinal axis between open and closed positions and which is rotatable about such axis. The rotator includes a pair of parts movable axially and rotatably relative to one another along and about the longitudinal axis. Variable force applying means in the form of a spring urges the valve toward its closed position and also urges the pair of parts toward one another with forces which alternately increase and decrease in magnitude during opening and closing movement of the valve. The valve is rotated during axial movement thereof by relative rotation between the two parts which is produced by a plurality of shiftable elements located between the parts and movable along separate paths which are dimensioned and positioned so that all of such paths taken together have a total path length which is greater than the circumference of a reference circle drawn about the longitudinal axis and passing through the midpoints of the paths.
    Type: Grant
    Filed: April 23, 1975
    Date of Patent: April 27, 1976
    Assignee: TRW Inc.
    Inventor: Max J. Tauschek
  • Patent number: 3952922
    Abstract: In accordance with a preferred embodiment of this invention, a precessing bottom pour stopper is used to accurately and precisely control the flow of molten metal through the tap hole which is located in the bottom of a metallurgical vessel. The precessional movement of the stopper, as it moves into and/or out of sealing engagement with the tap hole, removes any debris which may be lodged between the sealing surfaces and thereby ensures a tight seal over a prolonged period of operation.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: April 27, 1976
    Assignee: General Motors Corporation
    Inventors: Edwin D. Ditto, A. Hadi K. Akeel