Cylinder-piston Means Directly Moves Jaw(s) Patents (Class 269/25)
  • Patent number: 9033324
    Abstract: A rotating cylinder includes and a main body, a piston head, a piston rod and a guide assembly. The piston head slidably is received within the main body. The piston rod partially received within the main body, the piston head is fixed to the piston head, the piston rod defines one or more guiding groove adjacent to the piston head, the guiding groove includes a straight portion, a first helix portion and a second helix portion, the straight portion extends axially toward the piston head, the first helix portion curvedly extends away from the straight portion toward the piston head, the second helix portion curvedly extends from an end of the first helix portion toward a direction away from the piston head and the straight portion. The guide assembly is mounted on the main body and includes one or more guiding member slidably engaged with the guiding groove.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: May 19, 2015
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Cheng Chou, Xiao-Feng Wu
  • Publication number: 20150114110
    Abstract: An apparatus for a wheel service machine includes a body having an axis and a aperture through the axis, the aperture shaped to receive a rotary shaft, a first chamber and a second chamber located in the body, a pneumatic inlet communicated with the second chamber, the pneumatic inlet configured to be couple to a pneumatic supply line. A piston is movably disposed in the first chamber between a retracted and an extended position, the piston moving from the retracted position to the extended position when pressure from the second chamber is supplied to the first chamber. A valve is positioned between the first and second chambers, the valve selectively communicating the first and second chambers. A wheel service apparatus includes a base, a motor configured to rotate a rotary shaft, and a pneumatic nut. A docking station for the pneumatic nut can be located on the base.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Inventors: James Marler, John Story, Matthew Weis
  • Publication number: 20150113792
    Abstract: An embodiment of the present invention is a gripping unit for engaging a workpiece with the unit including a first assembly, a second assembly pivotally connected to the first assembly and having a limited range of pivotal movement relative to the first assembly. The first and second assemblies define a central opening of the gripping unit. Each of the first and second assemblies includes a V-block oppositely disposed from one another and capable of axial translation within the central opening to engage the workpiece. An actuator is arranged and designed to pivot the second assembly relative to the first assembly in the direction of the central opening.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Applicant: LOKRITE SAFETY BACKUP LLC
    Inventors: James L. Jacobs, J. Brent Jacobs
  • Publication number: 20150102544
    Abstract: An improved clamp for locking pipes and/or cylindrical bodies in general, including at least one first jaw that is associatable with a supporting structure, a second jaw, and an articulation means interposed between the first jaw and the second jaw in order to allow the relative rotation of the two jaws about a tilting axis, between an open configuration and a closed configuration in which the two jaws form a substantially circular locking seat. The particularity of the present invention resides in that the clamp includes an elastic means that is functionally connected to the two jaws and is adapted to facilitate their opening and/or closure.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 16, 2015
    Applicant: RITMO S.P.A.
    Inventor: Renzo Bortoli
  • Publication number: 20150097325
    Abstract: A pin clamp is provided, comprising a housing having a bore extending therethrough, therein defining an axis. A shaft in sliding engagement with at least a first portion of the bore comprises an axial hole. A piston coupled to the shaft is in sliding engagement with a second portion of the bore. A clevis has a clevis base and two clevis prongs extending along the axis. The clevis base an axial hole and first and second radial clevis holes, wherein the first and second radial clevis holes are opposed to one another by 90-degrees. The axial hole accepts the shaft, and the clevis base is coupled to the shaft in one of four 90-degree-opposed positions by a screw passing through one of the first and second radial clevis holes and the axial hole. Each clevis prong has a radial prong hole. A locating pin has a mounting portion configured to be coupled to the housing in one of the four 90-degree-opposed positions.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 9, 2015
    Inventors: Theodore Stanley Zajac, JR., Steven Eric Wallace
  • Publication number: 20150097326
    Abstract: A pin clamp is provided, comprising a housing having a bore extending therethrough, therein defining an axis. A shaft in sliding engagement with at least a first portion of the bore comprises an axial hole. A piston coupled to the shaft is in sliding engagement with a second portion of the bore. A clevis has a clevis base and two clevis prongs extending along the axis. The clevis base an axial hole and first and second radial clevis holes, wherein the first and second radial clevis holes are opposed to one another by 90-degrees. The axial hole accepts the shaft, and the clevis base is coupled to the shaft in one of four 90-degree-opposed positions by a screw passing through one of the first and second radial clevis holes and the axial hole. Each clevis prong has a radial prong hole. A locating pin has a mounting portion configured to be coupled to the housing in one of the four 90-degree-opposed positions.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 9, 2015
    Inventors: Theodore Stanley Zajac, JR., Steven Eric Wallace
  • Patent number: 8979083
    Abstract: A welding unit for welding two rails of a track is equipped with clamping jaws intended for lying against a rail web. The clamping jaws each have a sliding surface, which is at a distance from a contact surface in the transverse direction of the rail and is arcuately curved with respect to a cross section extending such that it is normal to a neutral axis of the rails. The jaw mount, intended for fixing the clamping jaw, has a sliding surface, which is curved in a way corresponding to the sliding surface of the clamping jaw, and so the clamping jaw is movable along the sliding surfaces in relation to the jaw mount.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: March 17, 2015
    Assignee: Franz Plasser Bahnbaumaschinen-Industriegesellschaft mbH
    Inventors: Josef Theurer, Bernhard Lichtberger, Heinz Mühlleitner
  • Publication number: 20150069689
    Abstract: A device for clamping a workpiece on tool includes a ram and a clamp, the ram being selectively actuated by a pressurized fluid. The ram includes a body which, when in use, is secured to the tool and a slide mounted such that it can slide with respect to the body. The clamp is hinged with the slide about a pivot axis. The body includes a front face beyond which the clamp projects when it is in a clamping position in order to clamp the workpiece. In addition, the clamp has a release position which it reaches at least partially by pivoting about the pivot axis. The slide includes a piston and a rod that are assembled to one another. The pivot axis is offset by a predetermined distance with respect to the axis of the rod in the direction of the front face.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 12, 2015
    Inventor: Christophe BOITEUX
  • Publication number: 20150060240
    Abstract: A clamping unit for containers at container treatment machines where, apart from a vertically movable lifting arm with a centering support for clamping a container from above, a motor for driving the lifting arm and a pneumatic spring against the resistance of which the centering support is mounted at the lifting arm so as to be movable to the top are provided. The lifting arms may be set to a desired vertical position independently of the movement or the rotational position of an associated rotary machine, and a clamping force of the centering supports may be easily and flexibly adjusted by applying a suited pressure to the pneumatic spring.
    Type: Application
    Filed: August 21, 2014
    Publication date: March 5, 2015
    Inventors: August Peutl, Andreas Kraus
  • Publication number: 20150035214
    Abstract: A holding device includes a main body defining a channel, a supporting assembly coupled to the main body, a plurality of pistons positioned on the main body, and an adjusting assembly positioned in the main body. The substance channel includes a main channel and a plurality of first sub-channels defined from a side of the main channel and communicating with an outside. An end of each piston received in a corresponding first sub-channel, the other end coupling to the supporting assembly. The adjusting assembly is received in an end of the main channel capable of being inserted into the main channel. The plurality of pistons is configured to drive the supporting assembly to move away from the main body.
    Type: Application
    Filed: July 28, 2014
    Publication date: February 5, 2015
    Inventors: HUA ZHANG, HAI-HE XUE
  • Publication number: 20150020372
    Abstract: Methods, devices, and systems for positioning workpieces for processing. In one aspect, a clamping device includes two clamping elements and a servo drive provided for the clamping elements. The servo drive is operable to first move at least one of the clamping elements toward the other of the clamping elements such that the clamping elements are transferred into a clamping start position in which the clamping elements are positioned on opposite sides of a workpiece arranged therebetween and in which the clamping elements do not apply a force to the workpiece or apply a force to the workpiece that is smaller than a clamping force, and subsequently urge the clamping elements toward one another from the clamping start position to an operational state, in which the clamping elements apply the clamping force to the workpiece.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 22, 2015
    Inventors: Bernd Linder, Torsten Popp, Bernd Gaiser
  • Publication number: 20140367903
    Abstract: The disclosure generally relates to unclamp sensing feedback devices for clamping or holding devices in automatic production lines more specifically to a link clamp assembly. Further, the disclosure also provides the method of achieving feedback to sense fully unclamped condition of the link clamp cylinder.
    Type: Application
    Filed: December 17, 2013
    Publication date: December 18, 2014
    Inventors: Deepak Kumar Ravilla, Vijay Chandra Pothamsetti, Akshath Shenoy H.B.
  • Publication number: 20140319747
    Abstract: A fixture for a plurality of ejector pins includes a base, a cylinder, a plurality of clampers, and a rear board. The base includes a fixing member. The cylinder is mounted to the base. The plurality of clampers is located between the cylinder and the fixing member to fix the plurality of ejector pins. The rear board is located on one side of the base for positioning the plurality of ejector pins. The plurality of clampers is pressed by the cylinder to move to retain the plurality of ejector pins.
    Type: Application
    Filed: December 19, 2013
    Publication date: October 30, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) Co., LTD.
    Inventors: HAO YUAN, LONG ZHANG, DONG-CHUN WU
  • Patent number: 8800981
    Abstract: A hanger apparatus for a vehicle and a changer comprising the same are provided herein, which are configured to correspond to a multitude of vehicle components (e.g., bodies or panels) of different shapes and sizes according to vehicle type and are commonly applicable to various types of vehicles by utilizing variable locating units capable of varying locating positions according to vehicle type and automatically varying the variable locating units.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: August 12, 2014
    Assignee: Hyundai Motor Company
    Inventor: In Ho Jeong
  • Patent number: 8777199
    Abstract: A hydraulic clamping device comprises clamping piece supported in a structure. In addition, the clamping device comprises a hydraulic cylinder having a longitudinal axis and including a cylinder housing fixedly connected to the structure. Further, the clamping device comprises an intermediate piece axially disposed between the piston and the clamping piece. The hydraulic cylinder is adapted to exert a force along the longitudinal axis against the clamping piece.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: July 15, 2014
    Assignee: National Oilwell Varco Norway AS
    Inventor: Jonathan Garrick Webb
  • Publication number: 20140191456
    Abstract: A first piston for high load is inserted into a housing so as to be movable vertically, and a second piston for low load is inserted into a cylindrical hole of the first piston so as to be movable vertically. An output portion projects from the second piston to above the housing. A first spring for high load and a second spring for low load are mounted in a spring chamber defined by both pistons and. Both springs and are mounted so as to urge the first piston and the second piston upward. A switching mechanism disposed in the pressure fluid chamber at a side opposite to the spring chamber, connects the first piston selectively to the housing or the second piston.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 10, 2014
    Applicant: KOSMEK LTD.
    Inventors: Hideaki Yokota, Keitaro Yonezawa
  • Publication number: 20140183805
    Abstract: A chuck body includes a base, a fixed gripper finger, a cylinder mount, a slide, and a movable gripper finger. The base includes a planar member. The fixed gripper finger is fixedly provided on the planar member at a position spaced from a longitudinal end of the planar member. The cylinder mount is mounted on the planar member, and includes a cylinder and a linear actuator operably engaging the cylinder to linearly move the cylinder in a longitudinal direction of the planar member toward and away from the fixed gripper finger. The slide is secured to a distal end of the cylinder and is integrally movable with the cylinder. The movable gripper finger is secured to the slide and positioned to cooperate with the fixed gripper finger to grip an associated work object when moved toward the fixed gripper finger by the linear actuator.
    Type: Application
    Filed: December 20, 2013
    Publication date: July 3, 2014
    Applicant: Honda Motor Co., Ltd.
    Inventors: Eric L. Beaty, Nicholas A. Jeffers
  • Patent number: 8678362
    Abstract: A link clamp for holding a part on a fixture has a housing with a bore with a longitudinal axis; a piston received in the bore and shiftable between retracted and extended positions; a clamping lever pivotally connected to one end of the piston; and a link assembly coupled for shifting the clamping lever between clamped and released positions. The clamping lever is configured to rotate relative to the housing in a single plane substantially perpendicular to the longitudinal axis of the bore so that the clamping lever may be positioned on any side of the housing without altering the distance between the contact point of the clamping lever and the mounting flange of the housing.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: March 25, 2014
    Assignee: Vektek, Inc.
    Inventors: Aaron Vernon Luthi, Michael Dean Swan
  • Patent number: 8585027
    Abstract: A clamp device has a grip member for gripping the inner peripheral surface of a hole in a workpiece, a clamp rod having a tapered shaft portion that is fitted into and engaged with the grip member, a hydraulic cylinder for driving the grip member and the clamp rod forwards and backwards in the axial direction, and a main body member to which the above elements are mounted. A tubular cylindrical main body portion projecting upwards is provided at the center portion of an upper half portion of the main body member. The outer diameter of this tubular main body portion is set less than or equal to three times the outer diameter of the grip member in the unclamped state, and, in the unclamped state, the upper half portions of the grip member and the tapered shaft portion are made to project outward from the upper end of the tubular main body portion.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: November 19, 2013
    Assignee: Pascal Engineering Corporation
    Inventor: Takayuki Kawakami
  • Patent number: 8517360
    Abstract: A clamp device includes a support mechanism that supports a grip member when expanding the diameter thereof, a clamping hydraulic cylinder that can drive the grip member and a clamp rod axially forwards and backwards (up and down), and a main body member to which the grip member, the clamp rod, the support mechanism, and the clamping hydraulic cylinder are mounted, with the grip member, the clamp rod, and the support mechanism being positioned at one end portion of the body member, and with the common axis of the grip member and the clamp rod being offset from the axis of the clamping hydraulic cylinder in a direction orthogonal to the clamp rod.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: August 27, 2013
    Assignee: Pascal Engineering Corporation
    Inventor: Takayuki Kawakami
  • Publication number: 20130168911
    Abstract: A rotating cylinder includes and a main body, a piston head, a piston rod and a guide assembly. The piston head slidably is received within the main body. The piston rod partially received within the main body, the piston head is fixed to the piston head, the piston rod defines one or more guiding groove adjacent to the piston head, the guiding groove includes a straight portion, a first helix portion and a second helix portion, the straight portion extends axially toward the piston head, the first helix portion curvedly extends away from the straight portion toward the piston head, the second helix portion curvedly extends from an end of the first helix portion toward a direction away from the piston head and the straight portion. The guide assembly is mounted on the main body and includes one or more guiding member slidably engaged with the guiding groove.
    Type: Application
    Filed: October 26, 2012
    Publication date: July 4, 2013
    Inventors: YU-CHENG CHOU, XIAO-FENG WU
  • Publication number: 20130113146
    Abstract: A grip member is inserted into an insertion hole of a cylindrical clamp body and is capable of extending outwards to grip the inner circumferential surface of an aperture of an article. A clamp rod is engaged with the grip member; a driving mechanism capable of driving the clamp rod forwards and backwards; a seating surface formed at the top end of the cylindrical clamp body; a case member supporting the cylindrical clamp body movably forwards and backwards; a driving mechanism capable of raising an lowering the cylindrical clamp body; and a lock mechanism having a cylindrical member into which the cylindrical clamp body is inserted so as to slide freely and capable of locking the outer circumferential surface of the cylindrical clamp body by elastically deforming the cylindrical member so as to reduce its diameter.
    Type: Application
    Filed: May 10, 2011
    Publication date: May 9, 2013
    Applicant: Pascal Engineering Corporation
    Inventor: Takayuki Kawakami
  • Publication number: 20130032982
    Abstract: A workpiece-holding unit for installation on machining centers for connecting rods, comprising a crosspiece which is adapted to be rotatably supported about its axis in front of a machining head of the machining center and has internal, hydraulic longitudinal ducts which communicate with respective hydraulic outlets on the main faces of the crosspiece and are connected to hydraulic feed means. Several workpiece-holding tools are installable on the main faces of the crosspiece and are provided with positioning mechanisms and locking mechanisms for at least one connecting rod, which are hydraulically operated via respective hydraulic lines leading at positions aligned to said hydraulic outlets.
    Type: Application
    Filed: July 30, 2012
    Publication date: February 7, 2013
    Inventor: Marco Massaia
  • Patent number: 8177205
    Abstract: A mechanical device for displacing jaws of a spring biased clamp includes a housing for receiving handles of the spring biased clamp. The housing has a platform moveable toward and away from a wall to move the handles of the clamp toward and away from one another, to move the jaws of the clamp away from and toward one another, respectively. A control member activates and deactivates a force applying member operationally connected to the platform, wherein activating the force applying member moves the platform toward the wall and deactivating the force applying member moves the platform away from the wall of the housing. The device is used to apply clamps to marginal edge portions of a stack of two one or more sheets to provide a clamped subassembly. The clamped subassembly in one embodiment is laminated to provide an aircraft transparency.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: May 15, 2012
    Assignee: PPG Industries Ohio, Inc
    Inventors: Andrew T Troller, William S. Hutchins, Paul C. Landreth
  • Publication number: 20120112397
    Abstract: A clamp has a powered actuator that includes an arm moving between a first and a second position. A linkage mechanism has a link and a base. The link and base are pivotally connected with one another. The link couples with the arm of the cylinder. The bracket couples with the actuator and the base. The bracket is movable along the base for adjusting the angle opening between the link and the base.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 10, 2012
    Applicant: Delaware Capital Formation, Inc.
    Inventor: Peter Schauss
  • Publication number: 20120104674
    Abstract: A hydraulic clamping device comprises clamping piece supported in a structure. In addition, the clamping device comprises a hydraulic cylinder having a longitudinal axis and including a cylinder housing fixedly connected to the structure. Further, the clamping device comprises an intermediate piece axially disposed between the piston and the clamping piece. The hydraulic cylinder is adapted to exert a force along the longitudinal axis against the clamping piece.
    Type: Application
    Filed: June 15, 2009
    Publication date: May 3, 2012
    Applicant: NATIONAL OILWEL VARCO NORWAY AS
    Inventor: Jonathan Garrick Webb
  • Patent number: 8167289
    Abstract: This invention relates to a clamping element for workpieces, in particular a vice (10, 33, 40), comprising a first clamping jaw (12, 34, 41) and a second clamping jaw (13, 35, 42), which are mounted on a carriage bed (11). To avoid bending moments as a result of tensile forces acting on the carriage bed (11), the clamping element of the invention is characterized in that the resultants of the forces introduced by the clamping jaws (12, 13, 34, 35, 41, 42) into the carriage bed (11) as a result of the clamping forces acting on the clamping jaws (12, 13, 34, 35, 41, 42) are located in the plane of the neutral fiber (32) of the carriage bed (11). Preferably, the clamping jaws (12, 13, 41, 42) constitute two-armed levers, a clamping surface (21, 24) being associated to the one lever arm and a push rod (27, 46) engaging the other lever arm.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: May 1, 2012
    Assignee: Promero SA
    Inventor: Andreas Schar
  • Patent number: 8146221
    Abstract: A hydraulic tool for assembling and disassembling components, such as gears, bearings, etc. of a shaft, is capable of performing an external-pulling or an internal-pulling operation as desired for an object to be assembled or disassembled. The hydraulic tool includes an oil pressure assembly having a hand-operated pump, an oil storage member, a control valve, an oil pressure tank, a set of external pulling type clamping jaws, internal pulling type clamping jaws, and a bolt for assembling purpose. The hydraulic tool has high mobility and portability, is capable of performing assembling or disassembling operations at any angle and position, and is considerably enhanced in applicability.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: April 3, 2012
    Inventor: Jung-Liang Hung
  • Patent number: 8132797
    Abstract: A floating-type clamping device includes a pneumatic cylinder unit, a pressing plate, a floating plate, two grips, an air supply pipe unit, and a safety control unit. The pneumatic cylinder unit includes at least one cylinder. The floating plate includes a plate body, a plurality of nozzles, and an air passage disposed inside the plate body and communicated with the nozzles. The plate body cooperates with the pressing plate to clamp a plate material when the pressing plate moves downward. The air supply pipe unit is connected and supplies compressed air to the pneumatic cylinder unit and the floating plate. The safety control unit is connected to the air supply pipe unit and is operable to block or permit the flow of the compressed air into at least one of the cylinder and the air passage.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: March 13, 2012
    Inventor: Pin-Feng Chang
  • Publication number: 20120025436
    Abstract: A welding unit for welding two rails of a track is equipped with clamping jaws intended for lying against a rail web. The clamping jaws each have a sliding surface, which is at a distance from a contact surface in the transverse direction of the rail and is arcuately curved with respect to a cross section extending such that it is normal to a neutral axis of the rails. The jaw mount, intended for fixing the clamping jaw, has a sliding surface, which is curved in a way corresponding to the sliding surface of the clamping jaw, and so the clamping jaw is movable along the sliding surfaces in relation to the jaw mount.
    Type: Application
    Filed: November 13, 2009
    Publication date: February 2, 2012
    Inventors: Josef Theurer, Bernhard Lichtberger, Heinz Mühlleitner
  • Publication number: 20110163488
    Abstract: A machine tool includes: a hydraulic pump that supplies pressure oil; a fixture plate that positions a workpiece; a fixture base that detachably holds the fixture plate and that moves relative to a tool during machining; a hydraulic cylinder performs an attaching/removing operation for attaching or removing the fixture plate to or from the fixture base; an accumulator that accumulates the pressure oil from the hydraulic pump and that supplies the pressure oil to the hydraulic cylinder; and a manual valve that is manually switched to supply the pressure oil in the accumulator to the hydraulic cylinder to thereby control the attaching/removing operation of the hydraulic cylinder.
    Type: Application
    Filed: December 22, 2010
    Publication date: July 7, 2011
    Applicant: JTEKT CORPORATION
    Inventors: Tohru OZEKI, Eiji Nakamura, Kichiji Takeshita
  • Publication number: 20110133381
    Abstract: A clamp device has a grip member for gripping the inner peripheral surface of a hole in a workpiece, a clamp rod having a tapered shaft portion that is fitted into and engaged with the grip member, a hydraulic cylinder for driving the grip member and the clamp rod forwards and backwards in the axial direction, and a main body member to which the above elements are mounted. A tubular cylindrical main body portion projecting upwards is provided at the center portion of an upper half portion of the main body member. The outer diameter of this tubular main body portion is set less than or equal to three times the outer diameter of the grip member in the unclamped state, and, in the unclamped state, the upper half portions of the grip member and the tapered shaft portion are made to project outward from the upper end of the tubular main body portion.
    Type: Application
    Filed: June 9, 2009
    Publication date: June 9, 2011
    Applicant: Pasca; Emgomeeromg Corporation
    Inventor: Takayuki Kawakami
  • Publication number: 20100301535
    Abstract: A floating-type clamping device includes a pneumatic cylinder unit, a pressing plate, a floating plate, two grips, an air supply pipe unit, and a safety control unit. The pneumatic cylinder unit includes at least one cylinder. The floating plate includes a plate body, a plurality of nozzles, and an air passage disposed inside the plate body and communicated with the nozzles. The plate body cooperates with the pressing plate to clamp a plate material when the pressing plate moves downward. The air supply pipe unit is connected and supplies compressed air to the pneumatic cylinder unit and the floating plate. The safety control unit is connected to the air supply pipe unit and is operable to block or permit the flow of the compressed air into at least one of the cylinder and the air passage.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Inventor: Pin-Feng Chang
  • Patent number: 7784775
    Abstract: An intensified machinist vise for supporting and holding work pieces during the machining thereof. The intensified machinist vise includes an elongate housing having a top and a bottom, and also having a first end and a second end, and also includes a first jaw being securely mounted upon the elongate housing, and further includes a second jaw being rotatably and adjustably mounted upon the elongate housing, and also includes a jaw support assembly for supporting the second jaw upon the elongate housing, and further includes an actuator assembly for moving the second jaw toward and away from said first jaw.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: August 31, 2010
    Inventor: Cris D. Somerville
  • Patent number: 7618031
    Abstract: Embodiments of a mass impact claw bar are disclosed which may be used as a pry bar or as a tool to separate articles such as trim board from wallboard. The device has a substantially vertical claw at one end and a substantially horizontal claw at the other end. Force is applied to either claw by moving a slidable mass slidably affixed to the claw bar.
    Type: Grant
    Filed: June 30, 2007
    Date of Patent: November 17, 2009
    Inventors: Lloyd Weaver, Bernt Askildsen, Lance Weaver
  • Patent number: 7476050
    Abstract: A socket assembly including a housing having a bore; an insert member disposed in the bore, the insert member defining a socket; and a cap attached to the housing proximate an inlet of the bore and having an opening to receive a connecting member that extends into the socket.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: January 13, 2009
    Assignee: Deere & Company
    Inventor: Steven J. Ditzler
  • Publication number: 20080203636
    Abstract: An apparatus for holding disk-like objects, in particular semiconductor wafers (12), with at least three contacting elements (18) for supporting and/or fixing the disk-like object at its outer edge region (22). It is provided that at least one of the contacting elements (18) is moveable.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 28, 2008
    Applicant: VISTEC Semiconductor Systems Jena GmbH
    Inventors: Rene Schenck, Detlef Wolter, Thomas Iffland, Winfried Deutscher
  • Patent number: 7275899
    Abstract: Machining coolant/lubricant is used to operate a piston of a clamping-side coupler by feeding same via a coolant feed passage to a clamping pressure chamber through a first check valve and a clamping pressure fluid passage. The same coolant/lubricant is discharged from an unclamping pressure chamber through an unclamping pressure fluid passage and a second check valve. The resulting movement of the piston downwards brings a clamp member into contact with a workpiece to thereby clamp the workpiece on a table. Thus, a dedicated pressure source for clamping can be dispensed with.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: October 2, 2007
    Assignee: Aisin AW Co., Ltd.
    Inventors: Takao Taniguchi, Shigeharu Ikeda, Minoru Hidaka, Tomoyoshi Sato, Hiroshi Osada, Takao Kobayashi, Hironao Kinpara, Shigeto Noma, Kazutaka Murai, Masato Sakakibara
  • Patent number: 7213803
    Abstract: A clamp having a frame and a latch member mounted within the frame so that the latch member is translatable along a displacement axis and rotatable about the displacement axis. A guide pin mounted to the frame engages a channel operatively associated with the latch member. An actuator mounted to the frame and operatively associated with the latch member translates the latch member along the displacement axis. The engagement of the guide pin and channel causes the latch member to be rotated about the displacement axis as the latch member is translated along the displacement axis.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: May 8, 2007
    Assignee: Verigy Pte. Ltd.
    Inventor: Donald Wai-Chung Chiu
  • Patent number: 7204480
    Abstract: The pry tool of the present invention is utilized for dislodging concrete forms from set concrete. It includes a fulcrum assembly and pivoting leveraging member in operative juxtaposition to the fulcrum assembly. One end of the fulcrum assembly engages a first single concrete form member connecting slot and the opposite end of the fulcrum assembly connects to a pivoting leveraging member. The leveraging member is parallel and set off from the fulcrum assembly in direct alignment with a second adjacent concrete form. The leveraging member is hand manipulated to exert force against the second adjacent concrete form forcing the form inward into the concrete wall. This causes a leveraging action with the engaged end of the fulcrum assembly forcing the first concrete form outward away from the concrete wall and thereby separating the form from the wall.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: April 17, 2007
    Inventor: Mark Simmons
  • Patent number: 7156384
    Abstract: A flexible hydraulic vise that is actuated hydraulically along the entire length of the jaw travel. The vise includes master jaws disposed in a complementary shaped tracks, connected to pistons by pins. Top jaws with spring loaded ball detents are secured to the master jaws by a dove-tail notch connection. Internal passageways allow pressure to be delivered to either side of pairs of the pistons disposed in the bores, allowing the clamping force to be exerted inwardly or outwardly.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: January 2, 2007
    Assignee: American Workholding, Inc.
    Inventor: Bernard T. Varnau
  • Patent number: 7073783
    Abstract: A hydraulic-operated vise device for holding and clamping objects for working on the objects. The hydraulic-operated vise device includes a base assembly including a housing sleeve and also including a first jaw member being attached to the housing sleeve; and includes an elongate housing member being movably disposed through the housing sleeve; and also includes a second jaw member being attached to the elongate housing member and being movable away from and toward the first jaw member for clamping objects between the first and second jaw members; and further includes an actuator assembly for moving the elongate housing member through the housing sleeve and for moving the second jaw member away from and toward the first jaw member.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: July 11, 2006
    Inventors: Dean S. Somerville, Tohn J. Dahl
  • Patent number: 7048266
    Abstract: Disclosed is a fastener and method for temporarily fastening a plurality of workpieces. The fastener uses pressurized fluid to facilitate the actuating clamping motion of a temporary fastener as opposed to conventional mechanically actuation devices. The fastener of the present invention generally comprises a housing, a spreader member connected to the housing, a piston located within said housing and capable of movement therein in response to the introduction of pressurized fluid within the housing, and a pair of expandable flexible fingers connected at one end to the piston and extending outside the housing where fluid-actuated movement of the piston causes the fingers to partially retract within the housing and wedge within the aligned apertures of the workpieces to temporarily clamp the workpieces together. A check valve within the piston assembly prevents the escape of pressurized fluid from within the fluid pressure chamber when the source of pressurized fluid is removed.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: May 23, 2006
    Assignee: Monogram Aerospace Fasteners, Inc.
    Inventor: Donald G. Starr
  • Patent number: 6929255
    Abstract: A novel two-stage clamp used in testing a device-under-test (DUT) is herein presented. The two-stage clamp provides two sequential actuations via one linear force, and includes clamps moving in multiple different directions. The two-stage clamp uniquely uses the DUT being clamped to provide the linkage and timing for the two-stage actuation of clamps moving in three different directions.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: August 16, 2005
    Assignee: Agilent Technologies, Inc.
    Inventor: David Hwang
  • Patent number: 6877729
    Abstract: A reconfigurable fixture for workpieces is disclosed. It utilizes a flat surface magnetic chuck with modular workpiece supporting, locating and clamping elements that are carefully located on it and held by magnetic attraction to it. These elements are precisely located to hold the workpiece in spaced relation to the chuck surface. Some locating elements are mechanically fixed to the chuck for securing the workpiece from transverse movement on the chuck surface. Preferably, each of the supporting, locating and clamping members are fixed to separate steel bases for magnetic attraction to the chuck. Each base may also carry its own hydraulic actuator for height adjustment of a support element or for height adjustment and closure of a clamping element. These modular elements have locating slots or grooves or the like so that they can be selected from a storage magazine and located on a chuck by numerically controlled mechanisms.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: April 12, 2005
    Assignee: General Motors Corporation
    Inventors: Yhu-Tin Lin, Mark A. Kramarczyk, Gary Lee Jones, Andrew Leslie Bartos, Phillip A. Bojda, Chi-Hung Shen, John Stilianos Agapiou
  • Patent number: 6842971
    Abstract: A pallet pressure monitor (10) broadly comprises a pressure detector (14) to sense hydraulic pressure within a hydraulic system (16) of a pallet (22), a pallet transmitter (18) to monitor the detector (14), and a receiver unit (20) to receive a status signal from the pallet transmitter (18) indicative of the detector's status. The detector (14) preferably comprises an adjustable pressure switch. The pallet transmitter (18) preferably receives power through a wireless connection to the receiver unit (20). The receiver unit (20) preferably receives the status signal from the pallet transmitter (18) over the wireless connection and actuates a relay output (30) according to the status signal. The relay output (30) is preferably electrically connected to a warning unit (32), or other signaling device, that warns an operator when the pressure in the hydraulic system (16) is below a set-point.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: January 18, 2005
    Assignee: Vektek, Inc.
    Inventor: Larry Fish
  • Patent number: 6832755
    Abstract: A clamping element for clamping workpieces in a flexible position. Two slides (2 and 3) guided in parallel slide in cutouts (4 and 5), which are provided in a housing (1). The force for moving the slides is introduced via plunger pistons (9 and 10) by these pistons acting on the front sides (17 and 18) of the slides, whereby a short lever arm is formed between the introduction of the force and the action of the force. A piston (22), which is provided at its head with a wedge (23), is introduced into the housing (1) at right angles to the plane of movement of the slides. This wedge is guided in recesses (6), which are associated with the slides. Due to the piston (22) being pulled down, its wedge is jammed in the recesses (6) of the slides (2 and 3) and the wedge pushes the slides into the cutouts (4 and 5) and fixes same in a self-locking manner.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: December 21, 2004
    Assignee: A. Römheld GmbH & Co. KG
    Inventor: Rudolf Kohlert
  • Publication number: 20040207138
    Abstract: A vice is comprising a movable clamp member that can be positioned and fixed in a prescribed position corresponding to the size of a workpiece, before fixing the workpiece, wherein the mechanism for achieving this positioning and fixing operation can be simplified, and the stroke of a fluid pressure cylinder can be shortened.
    Type: Application
    Filed: April 1, 2004
    Publication date: October 21, 2004
    Inventor: Ichiro Kitaura
  • Patent number: 6726192
    Abstract: A power-operated hand tool has a handle portion or frame that is gripped by the operator using two hands. A clamping portion comprising a pair of opposed jaws extends outwardly from the handle portion and utilizes an air cylinder to move an upper clamping jaw toward and away from the lower fixed jaw. Both jaws have free outermost ends that cooperatively define an entry mouth into a clamping zone between the jaws. In use, a group of individual boards are laid side-by-side in edge-to-edge relationship slightly above a work surface so as to permit the lower jaw of the tool to be slipped beneath the boards while the upper jaw becomes placed above the boards, both of which extend transversely across the boards. Upon actuation of the air cylinder, the upper jaw comes down into flattening engagement with the boards, causing them to be clamped down into generally flat alignment with one another in a common plane so as to present a substantially smooth top surface.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: April 27, 2004
    Inventor: Lawrence N. Devers
  • Publication number: 20040075206
    Abstract: Disclosed is a fastener and method for temporarily fastening a plurality of workpieces. The fastener uses pressurized fluid to facilitate the actuating clamping motion of a temporary fastener as opposed to conventional mechanically actuation devices. The fastener of the present invention generally comprises a housing, a spreader member connected to the housing, a piston located within said housing and capable of movement therein in response to the introduction of pressurized fluid within the housing, and a pair of expandable flexible fingers connected at one end to the piston and extending outside the housing where fluid-actuated movement of the piston causes the fingers to partially retract within the housing and wedge within the aligned apertures of the workpieces to temporarily clamp the workpieces together. A check valve within the piston assembly prevents the escape of pressurized fluid from within the fluid pressure chamber when the source of pressurized fluid is removed.
    Type: Application
    Filed: October 17, 2002
    Publication date: April 22, 2004
    Inventor: Donald G. Starr