With Gripper(s) Mounted Thereon Patents (Class 226/173)
  • Patent number: 10906686
    Abstract: The sealing device for packages that includes a control unit, a sealing station, an unwinder for a film web, a cutting device provided upstream of the sealing station and used for producing film sections of the film web, a film feed device for feeding the film sections to the sealing station, a conveying device for conveying packages into the sealing station. Preferrably, the packages include food packed in a gas-tight manner. Further, the sealing station may comprise upper and lower sealing elements that are configured for clamping the package and the film section in common between the lower and upper sealing elements and for sealing the film section onto the package. The sealing device may also include the sealing elements being adapted to be synchronously moved along with the continuously moving package during the sealing process.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: February 2, 2021
    Assignee: Multivac Sepp Haggenmüller SE & Co. KG
    Inventors: Bernd Höpner, Lars Ickert
  • Patent number: 10899087
    Abstract: The invention relates to a plastic-processing joining system and to a method for operating a plastics-processing joining system. It is known to feed plastics components by means of transport systems for processing purposes to a main material transport means, for example moving film path, in order to produce bags for medical purposes. Individually controlled movable workpiece carriers for the components are provided, or in addition to a work conveyor path for the workpiece carriers, a path for temporary parking is provided for a separate multitude of workpiece carriers.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 26, 2021
    Inventors: Johann Haas, Thomas Halletz
  • Patent number: 10648249
    Abstract: Representative implementations of devices and techniques provide a system arranged to deploy and retrieve a device such as an electric submersible pump with respect to a well or other like formation. An injection device for coiled tubing is modified to grip and inject a cable in order to lower a pump or like device into a wellbore. Modification to the tube injection device may include addition of cable-gripping blocks to the injection components. Multiple injection devices can be utilized to open and close in coordination in order to let a large connector or termination on the cable pass through an open injector while a closed injector maintains a grip on the cable.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: May 12, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Joseph Varkey
  • Patent number: 10604349
    Abstract: The invention relates to a line sorter for sorting items of various shapes, sizes and weights, in particular postal parcels or airport baggage. The line sorter (102) has a closed loop of coupled sorting carts or slats provided for moving along a loop track formed by an upper track section (104), a lower track section (106), one end track section connecting the upper and lower track sections at each of two ends of the line sorter, and one or more adjustment elements also forming part of the track loop. One of the end track sections 108, 109 can be longitudinally displaced relative to the upper and lower track sections to increase or decrease the resulting length of the track loop. The adjustment element(s) (210, 211) is movably mounted between said end track section and an adjacent upper or lower track section. A wedge shaped portion of the adjustment element is arranged for adjustable engagement with a correspondingly shaped portion of said end track section, or the upper or lower track section.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: March 31, 2020
    Assignee: Beumer Group A/S
    Inventor: Uffe Lykkegaard
  • Patent number: 10399277
    Abstract: The invention relates to a transport system for a plastics-processing joining system, to the joining system itself and to a method for operating a plastics-processing joining system. It is known to feed plastics components by means of transport systems for processing purposes to a main material transport means, for example moving film path, in order to produce bags for medical purposes. According to the invention, individually controlled movable workpiece carriers for the components are provided, or in addition to a work conveyor path for the workpiece carriers, a path for temporary parking is provided for a separate multitude of workpiece carriers.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 3, 2019
    Assignee: KIEFEL GmbH
    Inventors: Johann Haas, Thomas Halletz
  • Patent number: 10384396
    Abstract: A system and corresponding method to move build material in a three-dimensional (3D) printing system uses a gripper. The gripper is arranged to apply at least two opposing lateral forces to the build material. The at least two opposing lateral forces are applied to the build material, in conjunction with linear motion of the gripper, for at least a portion of a path the build material travels toward an extrusion head.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: August 20, 2019
    Assignee: Desktop Metal, Inc.
    Inventors: Richard Burnham, John LaPlante, Aaron Preston, Richard Remo Fontana
  • Patent number: 10315795
    Abstract: The invention relates to a packaging system comprising a work station with a tool component, a loading station with a side panel component, and a thermal system conveying heatable fluid. The thermal system comprises cooling section and/or a heating section. The cooling section conveys the heatable fluid to the tool component and has an actuator configured for regulating the flow volume of the heatable fluid to the tool component. The heating section conveys the heatable fluid to the side panel component and is coupled at least in sections to the side panel component in order to heat the side panel component.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: June 11, 2019
    Assignee: Multivac Sepp Haggenmüller SE & Co. KG
    Inventor: Elmar Ehrmann
  • Patent number: 9636930
    Abstract: A transport with media hold down is used with an inkjet printer. A plurality of spar links and vacuum links are connected pivotally together to form an endless belt orbiting around drive wheels and driven wheels. Vacuum links have hollow chambers to hold the media sheet against the endless belt using vacuum. At least one spar is received in a slot on a spar link. The spar extends above the link to receive the media sheet. The spar moves into a clamping position by a cam and follower to clamp the media sheet against the spar link. The media sheet will thus pass beneath the inkjet print head without contact. The spar moves into an extended position by the cam and follower to release the media sheet. The spar moves into a retracted position below the spar link surface by the cam and follower to allow the media sheet to exit the transport.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: May 2, 2017
    Assignee: Xerox Corporation
    Inventors: Roger G. Leighton, Michael F. Leo
  • Patent number: 9609794
    Abstract: A conveyor device for printed circuit boards includes a carrier that continuously circulates between conveyor wheels. At least one carrier element supporting placement of the printed circuit board and at least one resilient clamping element clamping the printed circuit board on the carrier element are arranged on the carrier. A switching device moves the clamping element back and forth between an open position of the clamping element, in which the printed circuit board can be loosely placed onto the carrier element, and a spring-loaded closed position of the clamping element, in which the printed circuit board can be pressed onto the carrier element by the clamping element.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: March 28, 2017
    Assignee: ERSA GMBH
    Inventors: Lothar Endress, Hermann Beck
  • Patent number: 9051125
    Abstract: The invention relates to a conveying unit for guiding and conveying a material web in a thermoform packaging machine, comprising, on either longitudinal side of a machine frame, a conveyor chain, a chain wheel and a guide device. A chain link of the conveyor chain and a clamp guide can be implemented together and in one piece as a shaped part.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: June 9, 2015
    Assignee: MULTIVAC SEPP HAGGENMUELLER GMBH & CO. KG
    Inventor: Gunnar Kurz
  • Patent number: 8821069
    Abstract: Linear pipe recovery/lay tensioners can include one or more pivot assemblies for rotatably moving an upper track away from a lower track to facilitate placement of a pipe segment between the two tracks. In addition, or alternatively, the tensioners can include one or more hydraulic cylinders that provide flexible suspension to the upper and lower tracks so the tracks can move and rotate as necessary due to differing pipe segment shapes. In addition, or alternatively, the upper and lower tracks include one or more gripping pad having one or more gripping member that is sheathed by a compliant member until such time as the pipe segment compresses the compliant member causing the gripping member(s) to protrude from the compliant member and bite into the pipe segment. Rotation of the tracks is controlled by a hydraulic pump capable of rotating the tracks at the same rate or at different rates.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: September 2, 2014
    Assignee: Control Flow, Inc.
    Inventors: Patrick K. Alloway, Kevin L. Preston, Loren D. Skiles
  • Patent number: 7686091
    Abstract: A drive assembly for inserting hose within a wellhead housing that intermittently reciprocates the hose feed into the housing. The intermittent reciprocating action feeds the hose past obstacles in the wellhead housing, such as within annuluses between tubulars. The drive assembly includes rollers that frictionally contact the hose and when rotated drive the hose forward. The rollers are rotated by a drive sprocket that is rotated by a hand crank. An offset cam assembly between the hand crank and the drive sprocket adds an orbital/reciprocating motion to the drive assembly.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: March 30, 2010
    Assignee: Vetco Gray Inc.
    Inventors: Charles E. Jennings, Johnny Jurena, David D. Comeaux
  • Publication number: 20090241486
    Abstract: A packaging machine includes a clamping arrangement, composed of a series of clamps designed to grip and release a web of flexible material, and which are coupled to a belt that is advanced along a predetermined path to advance the web of flexible through the machine. The belt is made up of side-by-side belt portions that are spliced together in axially spaced locations by the clamps, to withstand the forces and stresses placed thereon as the web material is advanced. Each clamp is formed of an upper jaw member and a lower jaw member that are pivotably interconnected together, in combination with a guide member the guides movement of the belt through the machine. The belts are independently driven by operation of a pair of motors, which are synchronously operated in order to advance the opposite edges of the web material at the same rate of speed through the machine.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Inventors: Raymond G. Buchko, Dwayne C. Long
  • Publication number: 20090241485
    Abstract: A packaging apparatus has a lift mechanism to lower and raise a tool, such as a formation box that functions to form cavities in a web of flexible material. The lift mechanism has a series of arms, supported by belt driven carriages, which move in tandem to raise and lower the formation box. The arms are arranged into two sets such that when the arms within each set are moved closer to one another, the formation box is raised, and when the arms within each set are moved away from one another, the formation box is lowered. The common driving of all arms by a belt allows the indexing of the formation box to be well controlled.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Inventors: Raymond G. Buchko, Dwayne C. Long
  • Patent number: 7398875
    Abstract: The invention relates to a tensioning piece, a conveyor chain, and to a means for opening and closing the tensioning piece.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: July 15, 2008
    Assignee: CFS Germany GmbH
    Inventor: Jürgen Niesar
  • Patent number: 7066368
    Abstract: At least one paper web is drawn into a web-fed rotary printing press. A draw-in device is provided with permanently fixed pointed bars or spikes. These can be moved or oriented so that they penetrate the paper web only during drawing in of the web into the printing press.
    Type: Grant
    Filed: March 18, 2000
    Date of Patent: June 27, 2006
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Wolfgang Günter Ruckmann, Horst Bernhard Michalik
  • Patent number: 7036578
    Abstract: A coiled tubing injector assembly includes a coiled tubing injector and a tubing guide. The tubing guide has an automatic clamping mechanism that includes a pair of clamping slips. The clamping slip will automatically move from an open position in which coiled tubing can pass through the clamping sips, to a closed position in which the clamping slips positively clamp the coiled tubing to the tubing guide. The clamping mechanism moves from the open to the closed position when the tubing guide is lifted from an installation platform in which the coiled tubing is positioned in the tubing guide so that it can be positioned on top of the coiled tubing injector. The clamping mechanism will automatically clamp the coiled tubing to the tubing guide when the tubing guide is removed from the coiled tubing injector.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: May 2, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry L. Austbo, Joshua N. Andersen
  • Patent number: 6953136
    Abstract: A drawing machine includes a drawing die and a continuously working drawing device, the drawing device comprising only one closed drawing member that is guided around axis-parallel wheels and is driven in a controlled manner via at least one of the wheels. The drawing member is linked with clamping devices carrying clamping chucks that are controlled and moved towards one another and apart from another to grip a wire, tube or profile to be drawn. In an embodiment, the clamping chucks are retained by retainer elements that extend through a drawing element linked with the clamping device.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: October 11, 2005
    Assignee: EJP Maschinen GmbH
    Inventor: Elefterios Paraskevas
  • Patent number: 6892809
    Abstract: A coiled tubing injector apparatus for use in inserting coiled tubing into a well, temporarily suspending the coiled tubing, and removing the coiled tubing from the well is described. The apparatus includes a base with a pair of spaced-apart carriages extending upwardly therefrom. The base is part of a frame positioned above a wellhead. The carriages each have a gripper chain drive system rotatably mounted thereon and movable therewith. An actuation and linkage system allows the carriages to move toward and away from one another in a lateral or transverse direction with respect to the superstructure and the base. Thus, the gripper chain systems comprises gripper chains that can be engaged or disengaged from the coiled tubing extending through the apparatus. A wetting fluid basin is positioned below the gripper chains, and support guides engage the coiled tubing below the gripper chains to prevent buckling of the coiled tubing.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: May 17, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry L. Austbo, Randy S. Rosine, Robert E. Domann, Kenneth C. Parks
  • Patent number: 6892810
    Abstract: An improved V-style gripper block to better accommodate a variable outer diameter material (e.g. cable, plastic, wire, or pipe). The gripper block comprises a block body being connectable to a gripper chain in an injector apparatus, a gripper plate having arcuate and/or angled gripping surfaces for engaging tubing of various outer diameters, and a flex layer disposed between the gripper plate and the block body to allow the gripping surface of the gripper plate to move relative to the block body to which it is attached. This relative movement allows the gripping surface of the gripper block to rapidly conform to changes in the outer diameter of coiled tubing. In various embodiments, the flex layer may be formed of elastomeric materials including natural or synthetic rubber; an encapsulated gel or liquid within a flexible membrane; or mechanical means such as springs.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: May 17, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry L. Austbo, Joshua N. Andersen
  • Patent number: 6880629
    Abstract: A continuous well string injection unit, comprising a pair of motor driven continuous chains mounted opposed to each for gripping coiled rod between them. Plural links are connected end to end in each one of the pair of motor driven continuous chains, in which each link comprises a connected yoke and a neck, the neck of each link being sized to fit within the yoke of a succeeding link in the motor driven continuous chain with consecutive links connected by a pin extending through the neck of one link and the yoke of the next succeeding link. A method of injecting coiled rod into a well is also provided.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: April 19, 2005
    Assignee: C-Tech Energy Services, Inc.
    Inventor: Jason Schroeder
  • Publication number: 20040188100
    Abstract: An improved V-style gripper block to better accommodate a variable outer diameter material (e.g. cable, plastic, wire, or pipe). The gripper block comprises a block body being connectable to a gripper chain in an injector apparatus, a gripper plate having arcuate and/or angled gripping surfaces for engaging tubing of various outer diameters, and a flex layer disposed between the gripper plate and the block body to allow the gripping surface of the gripper plate to move relative to the block body to which it is attached. This relative movement allows the gripping surface of the gripper block to rapidly conform to changes in the outer diameter of coiled tubing. In various embodiments, the flex layer may be formed of elastomeric materials including natural or synthetic rubber; an encapsulated gel or liquid within a flexible membrane; or mechanical means such as springs.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Inventors: Larry L. Austbo, Joshua N. Andersen
  • Patent number: 6672394
    Abstract: The present invention includes an interchangeable coil tubing support block that provides a means for quickly adapting a wheel system for wheel-type coiled tubing injectors for a wide variety of tubing sizes. In addition, the present invention provides a light weight, robust, and wear resistant means of contacting and fully supporting the tubing while it is being injected into and withdrawn from a well.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: January 6, 2004
    Assignee: Heartland Rigs International, LLC
    Inventor: Mike Neal
  • Patent number: 6609566
    Abstract: A coiled tubing injector head comprised of a plurality of endless chains, each of which are at least three links wide, that are positioned around a plurality of sprockets and/or idler rollers within the injector head. A plurality of gripper assemblies are positioned around the middle links of the endless chains. A bearing skate is positioned within the injector head, the bearing skate be comprised of a plurality of bearings in a staggered configuration, the bearings being adapted for rolling engagement with a portion of the gripper assemblies. An injector head is comprised of a plurality of halves, each of the halves being coupled to a positioning bar, the positioning bar having a plurality of openings formed therein, the openings adapted for use in varying the distance between the first and second halves.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: August 26, 2003
    Assignee: Drilling & Coiled Technology, Inc., a division of Gotco International, Inc.
    Inventor: Dudley Joseph Perio, Jr.
  • Patent number: 6505731
    Abstract: This invention concerns a device for transporting a strand of carrier material which is connected, at least on one side, to individual chambers made of filter paper material, spaced apart, following one after another, closed on all sides, containing a quantity of substance and composed of a strip of carrier material, with at least two independently driven belts, one segment of which runs at least partly parallel to the strand of carrier material and having cams spaced apart on the side facing the strand of carrier material, whereby they grasp the strand of carrier material between the chambers and/or in the area where one chamber is connected to the strand of carrier material, working along with a support, and transport it with the movement of the belts.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: January 14, 2003
    Assignee: Teepack Spezialmaschinen GmbH & Co. KG
    Inventor: Stefan Lambertz
  • Patent number: 6484920
    Abstract: A linear cable engine (LCE) uniquely grips a cable so as to avoid damage to the protective/insulative sheath thereon during retrieval and deployment. The LCE includes a design which encompasses the cable and actually applies pressure radially to the cable. This allows for the application of much higher force as the cable is in a state of hydrostatic stress resulting in a higher allowable tension on the cable. Deformable polymeric gripping elements are mounted to the outer surface of the driving mechanism. Each of the gripping elements, which may be an elastomeric block or annular tire-shaped member, has a profiled surface effective to embrace the cable and is identical in shape and construction, one or another. The elements have an indention capable of matching one or more given cable radii and a hollow or gel filled cross-section which may contain strategically placed stiffeners.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: November 26, 2002
    Assignee: Dynacon, Inc.
    Inventor: Toby Selcer
  • Patent number: 6467668
    Abstract: A horizontal conveyor for linked sausage strands has a frame (10) having a horizontal operating platform (12) with opposite first (16) and second ends (18), opposite sides, a top surface (20), and a continuous perimeter wall (14) extending along the sides and first and second ends. The perimeter wall (14) is substantially semi-circular at the first end (16); and has a substantially parallel side portions at a midsection; and has end portions that converge towards each other from the side portions to meet at a semi-circular end portion (18A) at the second end (18). A channel (24) is located in the top portion in uniform inwardly spaced relation to the perimeter wall, and a continuous conveyor chain (26) is in the channel. A plurality of spaced hook members (28) are secured to the conveyor chain and have a shank (30) slidably engaging the top of the perimeter wall, and a hook portion extends downwardly and outwardly with respect to the perimeter wall.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: October 22, 2002
    Assignee: Townsend Engineering Company
    Inventors: Vincent L. Basile, II, Brent M. Veldkamp, Marcel F. Ottow
  • Publication number: 20020046833
    Abstract: The present invention is directed to a coiled tubing injector head comprised of a plurality of endless chains, each of which are at least three links wide, that are positioned around a plurality of sprockets and/or idler rollers within the injector head. The invention further comprises a plurality of gripper assemblies that are positioned around the middle links of the endless chains. The present invention further comprises a bearing skate positioned within the injector head, the bearing skate be comprised of a plurality of bearings in a staggered configuration, the bearings being adapted for rolling engagement with a portion of the gripper assemblies. The invention further comprises an injector head comprised of a plurality of halves, each of said halves being coupled to a positioning bar, said positioning bar having a plurality of openings formed therein, said openings adapted for use in varying the distance between said first and second halves.
    Type: Application
    Filed: November 5, 2001
    Publication date: April 25, 2002
    Applicant: Drilling & Coiled Technology, Inc. a division of Gotco International, Inc.
    Inventor: Dudley Joseph Perio
  • Patent number: 6347664
    Abstract: A coiled tubing injector head is comprised of a plurality of endless chains, each of which are at least three links wide, that are positioned around a plurality of sprockets and/or idler rollers within the injector head. A plurality of gripper assemblies are positioned around the middle links of the endless chains. A bearing skate is positioned within the injector head, the bearing skate being comprised of a plurality of bearings in a staggered configuration, the bearings being adapted for rolling engagement with a portion of the gripper assemblies. An injector head is comprised of a plurality of halves, each of the halves being coupled to a positioning bar, the positioning bar having a plurality of openings formed therein, the openings adapted for use in varying the distance between the first and second halves.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: February 19, 2002
    Assignee: Drilling & Coiled Technology, Inc., a division of Gotco International, Inc.
    Inventor: Dudley Joseph Perio, Jr.
  • Patent number: 6332501
    Abstract: An injector is provided for injecting and withdrawing large diameter coiled tubing comprising a linear section of gripping blocks driven on an endless chain conveyor. The coiled tubing is forced into frictional engagement with the blocks by a corresponding linear array of rollers. The arrangement is gentle on the coiled tubing. The injector is not restricted in length and thus provides a linear driving section of configurable length for providing superior injection and pulling capacities. In combination with the strong draw works, the mast and rotary table of a conventional rig enables making up both sectional tubing for assembling BHA's, drilling surface hole and making up to non-rotating coiled tubing from the injector. Using a mast having two open sides and with dual draw works, increased functionality is provided and less serial handling.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: December 25, 2001
    Assignee: Precision Drilling Corporation
    Inventor: Thomas C. Gipson
  • Publication number: 20010040031
    Abstract: A gripper block for use in an endless chain in a device for moving a generally cylindrical object longitudinally, as into or out of a well. The block has a first portion adapted to engage the endless chain and a second portion adapted to frictionally engage the object. At least a portion of the block is made from a resilient material that engages the tubing.
    Type: Application
    Filed: February 16, 2001
    Publication date: November 15, 2001
    Applicant: Vita International
    Inventors: Khaled M. Shaaban, James A. Bodhaine, Alexander Sas-Jaworsky,
  • Patent number: 6230955
    Abstract: A gripper block for use in grippingly engaging coiled tubing, pipe, rod, cable or like objects having various outside dimensions is provided. The gripper block has a gripping portion which includes a curved and a planar gripping surface. The planar gripping surface preferably includes a pair of opposed sloped planar gripping surfaces to engage coiled tubing, preferably steel coiled tubing of varying diameters. The sloped gripping surfaces preferably provide a V-shaped engagement configuration. The curved gripping surface is adapted to engage coiled tubing, preferably composite coiled tubing having a diameter less than the coiled tubing to be engaged by the sloped gripping surfaces.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: May 15, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Kenneth C. Parks
  • Patent number: 6173769
    Abstract: The gripping element of a coiled tubing injector has a carrier and a removable gripping shoe mounted to the carrier. The removable shoe slides onto slots formed on the carrier and is floated on the carrier by inserting an elastomeric pad sandwiched between the carrier and shoe. A manually depressible spring along ones side of the carrier prevents the shoe from sliding out of the slots during operation of the injector.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: January 16, 2001
    Assignee: Hydra Rig, Inc.
    Inventor: John E. Goode
  • Patent number: 6086271
    Abstract: Photographic material grasping and dragging device for photographic material developing machine, in particular of photographic paper, shaped as a fork provided with a first and a second portion (26, 27) respectively for the photographic material winding and for the hooking and unhooking with respect to the guide band (leader) of the machine. Device which comprises clamping means (grasping jaws 32) co-operating with the guide band (28) and sprung articulated means (31) adapted to drive the clamping means (32) from a first to a second operative position, in which they are respectively disengaged and engaged with respect to the guide band (28), and vice versa. Device which assures always a feed of photographic material at any operative condition and mechanical stress exerted by such material on the device referred to.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: July 11, 2000
    Inventor: Ernesto DeBernardi
  • Patent number: 5996658
    Abstract: The present invention relates to a feed roller (1) by means of which a felled tree (2) trunk is fed into a timber harvester for delimbing. The apparatus comprises a drive wheel (4) and at least one transmission means (5) arranged at the outer circumference of and controlled by the drive wheel, the transmission means having engagement plates (3) provided with gripping means (14). The apparatus efficiently equalizes surface pressure exerted on the tree (2) trunk, even though the drive wheel is without cushioning rubber material. The transmission means (5) arranged on the drive wheel (4) is longer than the wheel perimeter. Consequently, the transmission means is arranged to form a plane surface between the drive wheel and the tree trunk, whereby a continuous surface pressing evenly against the tree trunk is formed on the wood side in the apparatus.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: December 7, 1999
    Assignee: Ponsse OYJ
    Inventor: Paavo Alhainen
  • Patent number: 5853118
    Abstract: A gripper block for use in grippingly engaging coil tubing, pipe, rod, cable, or like objects having various outside dimensions for ultimately applying a longitudinal load thereto. The subject gripper block has an attachment point preferably at or near the center of the block body to enable attachment to at least one endless chain of an injector apparatus. The gripper block further has a pair of gripper surfaces formed thereon, these gripper surfaces are generally planar and tilted away from each other so as to diverge away from the tubing to be gripped at approximately 90 degrees. The gripper surfaces thus preferably provide a V-shaped engagement configuration which is quite effective in gripping objects of differing outside dimensions with no or minimal scarring of such objects.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: December 29, 1998
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Vladimir A. Avakov
  • Patent number: 5803888
    Abstract: An apparatus (31) and a method are disclosed for performing an operation upon multiple webs (51,53), including the feeding of multiple webs (51,53), the provision of a carrier (65) for assisting in moving the webs (51,53) along a predetermined path (83), the performance of an operation (69) upon the webs, the insertion of a carrier (65) between the webs (51,53), and the provision of a sealing device (71) for sealing the webs together to form a sealed portion (75) to cooperate with the carrier (65) for assisting in moving the webs (51,53). The carriers (65) are mounted on a conveyor (83) and each carrier (65) pushes against the sealed portion (75) to pull the webs (51,53), and the packages (41) formed therefrom in the direction of conveyor travel. The preferred carrier (65) has a shaped head on the end of a flat plastic blade.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: September 8, 1998
    Assignee: Baxter International Inc.
    Inventors: Dale R. Severs, David Frankenberger, Richard Williams, Michael Kemp
  • Patent number: 5702044
    Abstract: A movable spring end of a compression spring being stopped on a guide spindle by a special stop piece. The stop piece which is designed nonelastic and can therefore be manufactured of a nonrusting material, it thereby guarantees a hygienically satisfactory device, in particular when contacting food. The stop piece can be used particularly advantageously in tensioning pieces on conveyor chains, which are suited for the transport of packaging foil bands in packaging machines.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: December 30, 1997
    Assignee: Tetra Laval Convenience Food GmbH & Co. KG
    Inventors: Norbert Ernst Christmann, Gerhard Fries
  • Patent number: 5566764
    Abstract: A coil tubing injector unit is shown for injecting tubing into a well bore. A main injector frame is positioned adjacent the well bore and includes a longitudinal opening which defines a vertical run for the injector unit which is alignable with the well bore vertical axis. Gripper block assemblies are carried on the main injector frame and include plier-like halves which are pivotable between an open position and a closed, gripping position as the assemblies enter the vertical run so that the plier halves grip a selected length of tubing fed into the main injector frame along the central vertical axis of the injector unit to inject the tubing into the well bore. The profile of the vertical run is designed to minimize loading on the gripper block assemblies. The section modulus of the material used to manufacture the vertical run is also designed to allow a controlled flex of the run in order to soften the gripper loading as the gripper block assemblies enter the vertical run.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: October 22, 1996
    Inventor: Tom Elliston
  • Patent number: 5497957
    Abstract: Film edges 9, 9 of a film web 1 are sensed with sensor heads 4,4. The sensor heads 4, 4 can be motor-adjusted transversely to the longitudinal direction of the film web 1. By virtue of the displacement, signals are produced which are proportional to the displacement and which activates servo valves 8, 8. These servo valves are connected to positioning cylinders 10, 10 which are in turn connected to chain-path deflector heads 6, 6. The signals of the servo valves activate the adjustment cylinders, which then adjust the chain-path deflector heads and thus drive them in response to movement of the film edges. By virtue of the adjustment of the chain-path deflector heads, the paths of the clip chains 14, 14 are also adjusted, resulting in a variation of the grasping depths of the film strip held firmly by the clips. This brings about an oscillating movement of the film web after the feed-in into the transverse stretching frame 16.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: March 12, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Hartmut Michel
  • Patent number: 5489056
    Abstract: A conveying device for transportation of extended line products such as cables or tubes has tension elements to exert a tension force on at least two tension chain wheels in the direction away from the driving chain wheels. A self-locking wedge prevents the tension chain wheels from moving back and forth. The automatic adjustment of the roller chains reduces wear of the conveying device and prevents speed changes during transportation of the extended line product.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: February 6, 1996
    Assignee: kabelmetal electro GmbH
    Inventor: Harry Staschewski
  • Patent number: 5477901
    Abstract: For the manufacture of high pressure laminates, the pressed laminate (4) consisting of a stack of artificial resin impregnated paper sheets is fed into a single daylight hot press. The pressed laminate is held and guided along both longitudinal edges (6) by transfer clamps (7), which are connected to an endless rotating chain (8) and are conveyed on guide tracks (15). The transfer clamps (7) remain closed during the transfer into the single daylight hot press, during the pressing process and during a following cooling process in a cold press.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: December 26, 1995
    Assignees: Resopal GmbH, Pathex International Ltd.
    Inventors: Horst J. Schikarski, Klaus Baranowski, Charles Kosa, Gert Muller, Reinhold Rudolf, Dennis Colyer
  • Patent number: 5346112
    Abstract: A capstan draw apparatus that includes a plurality of split clamps; a plurality of support carriages each having one of the split clamps positioned thereon; an endless chain drive mechanism for concurrently pulling each of the support carriages; and an elongated guide frame mechanism for successively closing and opening the split clamps about an elongated member. The apparatus further includes an endless lateral guide frame mechanism including first and second oppositely disposed, parallel endless lateral guide frames that are spatially positioned parallel to the endless chain drive mechanism and extend on opposite sides of the plurality of support carriages for continuously supporting each of the carriages in a positively guided manner for uniform movement thereof throughout their entire endless paths of rotation.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: September 13, 1994
    Assignee: Kabelmetal Electro GmbH
    Inventors: Gerhard Ziemek, Harry Staschewski, Hermann Meyer
  • Patent number: 5309990
    Abstract: There is provided an improved coiled tubing injector for injecting and withdrawing a length of flexible, cylindrical tubing into and from a well bore. The improved injector comprises first and second sets of gripper shoes, and drive mechanism for moving the sets of gripper shoes around first and second endless paths, respectively. The endless paths include parallel sections disposed on opposite sides of a length of the tubing. Within these parallel sections, the gripper shoes are pressed against the tubing with sufficient force to hold the tubing therebetween. Each gripper shoe includes a base portion connected to the drive mechanism and at least two substantially nondeformable gripper elements, each having cylindrical gripping surfaces corresponding to the outer surface of the tubing. A body of elastomeric material connects the gripper elements to the base portion and permits movement of the gripper elements between open and closed positions.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: May 10, 1994
    Assignee: Hydra-Rig, Incorporated
    Inventor: Raymond E. Lance
  • Patent number: 5287637
    Abstract: An apparatus for the constrained drying and/or heat treating of a continuous or roll of, web stock of film. This apparatus includes a mechanism which grasps a film by its edges and moves said film through a drying zone, with said mechanism holding said film taut without substantial stretching of said film in the drying zone, and a means to remove the evaporated solvent from said apparatus. The apparatus is particularly useful for drying film of polybenzoxazole, polybenzothiazole and copolymers thereof, as well as molecular composite films. A method of drying/heat treating film is also disclosed.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: February 22, 1994
    Assignee: The Dow Chemical Company
    Inventors: Thuan P. Dixit, Paul T. Louks
  • Patent number: 5279364
    Abstract: There is provided an improved guide arch for guiding the movement of continuous production tubing through a predetermined curvature, the guide arch comprising a housing and an endless curved conveyor mounted within the housing to support the tubing through its curvature, wherein the conveyor continuously supports the tubing along the majority of its length passing through the arch to thereby reduce contact stress between the tubing and the conveyor.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: January 18, 1994
    Assignee: Canadian Fracmaster Ltd.
    Inventors: Leon K. Jantzen, Ross Pilich, Hans J. Brygger, Charles D. Costall
  • Patent number: 5263624
    Abstract: Apparatus for longitudinally driving an elongate body (1) such as a rod or tube, comprises two opposed wheels (2) adapted to clamp the body (1) between them. The wheels (2) have an axis of rotation (3) lying substantially in a transverse plane of the elongate body (1). A drive (1) drives at least one of the wheels, wherein the wheels are adapted to transform the rotating movement of the wheels into a translating movement of the elongate body by means of friction. According to the invention the wheels (2) include a plurality of successive movably mounted intermediate pieces (12) circulating with the wheels and being supported by the wheels during the engagement with the body (1), the intermediate pieces (12) successively enabling the wheels (2) to engage the elongate body (1) a distance in longitudinal direction.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: November 23, 1993
    Assignee: Fugro-McClelland Engineers B.V.
    Inventor: Herman M. Zuidberg
  • Patent number: 5158781
    Abstract: Apparatus for handling large diameter horizontally extruded plastic tubing includes a number of driven endless belts positioned around the path of travel of the extrusion to transport the extrusion while it cools. The belts are individually driven either by hydraulic or electric motors, the speed of travel of each belt is continuously monitored and a feedback system including a microprocessor controls the driving motors so as to maintain the speed of travel of the extrusion at an adjustable controlled value. The belt positions are hydraulically controlled to accommodate tubing of a range of sizes and the level of the hydraulic fluid in its reservoir, its pressure and its temperature are also monitored by the microprocessor. In the event of component fault or failure, the microprocessor returns the affected belt or belts to manual control so that the product line need not be shut down.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: October 27, 1992
    Assignee: The Conair Group, Inc.
    Inventor: Charles Gatto
  • Patent number: 5121150
    Abstract: A photographic film processor for conveying exposed film along a serpentine film path through a series of processing racks in a respective series of processing tanks, each processing rack including a sprocket-driven endless timing belt mounted for rotation on the rack and having outer teeth for engagement with an apertured film leader card to move the film leader card along a part of the path of the timing belt, the outer teeth being laterally expandable for positive engagement with the leader card, and contractible for disengagement from it. Alternatively, the outer teeth are laterally contractible for positive engagement with the leader card, and expandible for disengagement from it.In another embodiment, the endless timing belt has spaced flexible edge tabs to pass through the apertures of a leader card to engage the card.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: June 9, 1992
    Assignee: Eastman Kodak Company
    Inventor: Robert J. Blackman
  • Patent number: RE43410
    Abstract: The gripping element of a coiled tubing injector has a carrier and a removable gripping shoe mounted to the carrier. The removable shoe slides onto slots formed on the carrier and is floated on the carrier by inserting an elastomeric pad sandwiched between the carrier and shoe. A manually depressible spring along ones side of the carrier prevents the shoe from sliding out of the slots during operation of the injector.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: May 29, 2012
    Assignee: Varco I/P, Inc.
    Inventor: John E. Goode