For Sheet Stock Patents (Class 414/19)
  • Patent number: 8297608
    Abstract: A transport system for conveying sheet material along a feed path. The transport system includes an electro-dynamic propulsion system for moving sheet material, or a stacked collation of sheet material, along a support deck which defines the feed path. More specifically, the electro-dynamic propulsion system includes at least one guideway and a ferromagnetic element disposed internally of the guideway. The guideway includes a magnetic coil to produce a variable magnetic field. By varying the flux density and polarity of the magnetic field the ferromagnetic element may be propelled within the guideway. An abutment member is coupled to the ferromagnetic element, extends through the elongate opening of the support deck and engages an edge of sheet material. A processor is operative to control the electro-dynamic propulsion system and, accordingly, the rate of travel and position of the sheet material along the feed path.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: October 30, 2012
    Assignee: Pitney Bowes Inc.
    Inventor: Henson C. Ong
  • Patent number: 7857297
    Abstract: A transport system for conveying sheet material along a feed path. The transport system includes an electro-dynamic propulsion system for moving sheet material, or a stacked collation of sheet material, along a support deck which defines the feed path. More specifically, the electro-dynamic propulsion system includes at least one guideway and a ferromagnetic element disposed internally of the guideway. The guideway includes a magnetic coil to produce a variable magnetic field. By varying the flux density and polarity of the magnetic field the ferromagnetic element may be propelled within the guideway. An abutment member is coupled to the ferromagnetic element, extends through the elongate opening of the support deck and engages an edge of sheet material. A processor is operative to control the electro-dynamic propulsion system and, accordingly, the rate of travel and position of the sheet material along the feed path.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: December 28, 2010
    Assignee: Pitney Bowes Inc.
    Inventor: Henson C. Ong
  • Patent number: 7744337
    Abstract: The invention relates to a conveyor unit constituting a separating and feed mechanism (33), in particular for sheet-shaped workpieces, in particular sheets (3) to be printed, with a lifting mechanism (2) for transporting the sheet (3) vertically and a conveyor track with conveyor means (51, 52) for transporting the sheet (3) horizontally. This being the case, the conveying means (51, 52) are displaceable in a guide system between an operating position for feeding the sheet (3) to a production unit (36), in particular a printing machine (37), and a non-operating position to enable the sheet (3) to be lifted unhindered from a sheet stack (39).
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: June 29, 2010
    Assignee: Durst Phototechnik Digital Technology GmbH
    Inventors: Hubert Anton Kaufmann, Peter Weingartner
  • Patent number: 6893247
    Abstract: The invention relates to a picking-up device and assembly for making a part made of a reinforced plastics material in a mold. The picking-up device includes at least one presser having a shaped front face and first needles mounted to have end portions that project beyond the front face in one position and retract so as to be set back from the front face in a second position. The picking-up device may have a base mounted to move relative to the picking-up device. A production line may be formed from use of two picking-up devices.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: May 17, 2005
    Assignee: Compagnie Plastic Omnium
    Inventors: Luc Uytterhaeghe, Charles-Guillaume Blanchon, Anthony Chene, Robert Charpy
  • Patent number: 6571674
    Abstract: The invention relates to a method and device for making a series of cuts at different angles in one or more panels using a panel sawing machine. The method comprises the steps of: placing a stack of panels on a worktable; turning the stack a first time in a first direction of rotation; making a first series of cuts in the stack; turning the stack a second time in a direction opposite to the first direction of rotation and in such a way as to move the stack closer to the cutting line; and making a second series of cuts in the stack. The device comprises: a worktable having a cutting line for a panel sawing machine; a pickup element that moves along a first guide perpendicular to the cutting line; and a pusher element that moves along a second guide parallel to the cutting line.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: June 3, 2003
    Assignee: Giben Impianti S.p.A.
    Inventor: Piergiorgio Benuzzi
  • Patent number: 6257044
    Abstract: A device for positioning stock within a metal forming machine has a body containing a pusher arm. The device may use interchangeable standard and reverse pusher arms . The pusher arms mount on pivot pins and have position restoring springs. The springs exert force on the pusher arms at a distance from the pivot pins, thereby inducing a moment in the pusher arm. The pusher arm translates this moment into a lateral force exerted by the pusher arm on a piece of stock metal. The body may be mounted in either a reverse or standard configuration resulting, in combination with the use of either the standard or reverse pusher arm, in the ability to exert a lateral force in different directions depending on the configuration used. The device may also have a single pusher arm which may be used in either configuration.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: July 10, 2001
    Assignee: Dickerson Tool & Engineering, LP
    Inventor: Jack Laverne Dickerson
  • Patent number: 5727916
    Abstract: Strips which are to be worked in a forming tool are taken out of a magazine and deposited on a guide at which by means of a finger rod with elastic catchs they are guided to the tool and stepwise advanced through said tool. By means of the programmable driving for the finger rod, this finger rod can execute strokes in any direction and in any different dimensions in order to guide the strips in the forming tool and for displacing them stepwise through the tool. The stripfeeder is of simple construction and it can be programmed for the most different requirements in that only the driving will be correspondingly programmed.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: March 17, 1998
    Assignee: Styner & Bienz AG
    Inventors: Roland Krebs, Peter Lehmann, Rudolf Luthi
  • Patent number: 5720587
    Abstract: An article to be inserted in a conveying arrangement is picked up by the vane of a rotating element, and pushed into the conveying device. Because the motion of the element is rotational, a high feed rate can be achieved, and the article can be contacted without damage.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: February 24, 1998
    Inventors: Roland Dietschi, Armin Ineichen
  • Patent number: 5711641
    Abstract: The device presents a number of supports associated with a number of machining heads and located at the front of the machine. For each machining head, the supports are located on two superimposed surfaces for respectively supporting a pack of boards for loading and a pack of boards unloaded off the work table. The supports are fitted to a frame which is moved vertically to position the two surfaces at the table, and which is also movable laterally for enabling access to the machine. The device also presents a cross member movable along the Y axis; and a number of arms for alternately engaging two opposite edges of the packs and transferring them between the table and the supports. The arms are connected to a common connecting rod which is moved to rotate and withdraw them clear of the packs during the idle movement of the cross member.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: January 27, 1998
    Assignee: Pluritec Italia S.p.A.
    Inventor: Luigi Piovano
  • Patent number: 5450327
    Abstract: The present invention features a manually operated apparatus for working flat stock. The system has a mechanism for automatically positioning a mechanically adjustable back gauge to a predetermined position. The automatic positioning is accomplished by means of a programmable microcontroller that controls the movement of a worm drive through a stepper motor. The worm drive is used to move the back gauge with respect to a working tool. The operator of the system sets a desired position of the back gauge relative to the work tool via input thumbwheel switches mounted on a control panel. The panel is connected to the microcontroller, and feeds the information thereto. The program of the microcontroller uses the thumbwheel switch input to drive the stepper motor in a fast drive mode until the back gauge comes into approximate vicinity of a starting position. Thereafter, the worm drive is driven at a slower speed to reach the start position.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: September 12, 1995
    Inventors: John F. Tomassetti, Howard Buschman
  • Patent number: 5435681
    Abstract: A pusher device for pushing plate-form articles such as lead frames including a pusher for feeding out a lead frame, a pusher supporting plate rotatably holding the pusher and having a stopper section that regulates the rotation of the pusher so as to bring a pushing section of the pusher to a lowest position, a coil spring which urges the pusher toward the stopper section of the pusher supporting plate, a cylinder which reciprocates the pusher supporting plate, and a spring-up operation plate which, cooperative with the stopper section of the pusher supporting plate, defines the rotational movement of the pusher. Thus, the pusher is withdrawn from an area into which the lead frame is transferred and then takes a posture to feed the lead frame to, for example, a bonding machine.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: July 25, 1995
    Assignee: Kabushiki Kaisha Shinkawa
    Inventor: Hisashi Ueda
  • Patent number: 5401160
    Abstract: A load of plastic material, including two sheets cut successively from a strip, is loaded into the mold of a molding press by way of a loading device including a conveyor having a number of spaced, parallel belts; a number of lifting elements arranged in rows between the belts; and a number of retractable bars insertable between the lifting elements for picking up the load. By way of an operating arm, the bars are moved up to the mold and then withdrawn in relation to a stop cross member so as to drop the load inside the mold.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: March 28, 1995
    Assignee: Iveco Fiat S.p.A.
    Inventor: Bruno Bellettato
  • Patent number: 5388978
    Abstract: For molding complex mechanical components from plastic material in sheets, any portions of the material projecting from the mold are folded about the respective edges of the mold. The sheets are transferred to the mold on a number of retractable bars moving in relation to at least one reference bar; and a finger is moved towards the mold by an articulated parallelogram mechanism, and is mounted on a supporting bar located between two adjacent retractable bars and adjustable for so orienting the finger as to fold the projecting portion of sheet material in either one of two opposite directions.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: February 14, 1995
    Assignee: Iveco Fiat S.p.A.
    Inventor: Bruno Bellettato
  • Patent number: 5354153
    Abstract: On a drilling machine for drilling packs of printed circuit boards, the packs are loaded and unloaded between a support and the work table by engaging a pin on the pack via a pair of jaws and by moving the table longitudinally. The pack is retained by a bar for enabling two bars to engage and locate a further pin on the pack; further retaining elements provide for sliding the pack in relation to the table; and a member is activated for aligning the pack against a fixed locator. The support forms part of a rack operated vertically in steps by a lifter located behind the drilling machine.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: October 11, 1994
    Assignee: Pluritec Italia S.p.A.
    Inventors: Renato Ottone, Luigi Piovano, Guido Gaida
  • Patent number: 5273390
    Abstract: A truck bed insert having a powered unloading blade, the insert adapted to be carried on a truck bed, the insert comprising a floor, a tunnel member, upwardly extending sides joined to said floor sides, the front end comprising a blade upwardly extending from said floor and disposed between said upwardly extending sides. A worm screw drive shaft is mounted in said tunnel member. Power is provided for turning said worm drive.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: December 28, 1993
    Inventor: Donald R. Crissman
  • Patent number: 5220997
    Abstract: In a lead frame conveying device for bringing lead frames into a storage magazine, a pusher claw is swingably mounted to a claw mover. When a lead frame is brought into the magazine, the claw mover moves towards the magazine, and this releases an engagement of the pusher claw with a stopper; as a result, the pusher claw swings down (by its own weight) so that the tip end of the push claw comes into contact with the trailing edge of the lead frame so that the pusher claw pushes the lead frame completely into the magazine.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: June 22, 1993
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Hiroshi Ushiki, Kenji Kitakubo
  • Patent number: 5205705
    Abstract: An apparatus and process for feeding panels to a panel cutting saw for conveying a stack of panels to a panel cutting saw so that the edges of the panels in the stack are aligned with respect to the cutting plane of the saw. An elevator platform supports a stack of panels. A panel conveyer transfers one or more panels at a time over a transfer platform to a panel feed platform. A repositionable barrier may be positioned between the saw and the panel feed platform. An alignment device aligns the panels of the stack against the barrier to produce a stack with at least one side in which the edges of the panels are aligned, prior to feeding of the stack into the panel cutting saw.
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: April 27, 1993
    Inventor: Erwin Jenkner
  • Patent number: 4824310
    Abstract: An automated workpiece handling system for use with a machine tool having a plurality of workstations spaced along a longitudinally movable, elongate workpiece comprising a first cart for transporting workpieces to one end of the tooling machine, adjacent a first workstation, a first feeder mechanism on the machine tool for drawing workpieces from the first cart and delivering the workpieces onto the worktable, a mechanism on the worktable including the worktable itself for moving the workpieces along the worktable from a position adjacent the first workstation to a position adjacent a final workstation, a second cart for transporting workpieces from the other end of the machine tool, adjacent the final workstation, and a second feeder mechanism on the machine tool for drawing workpieces from the worktable and delivering the workpieces onto the second cart.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: April 25, 1989
    Inventors: Wojciech B. Kosmowski, Sabatino Capaldi
  • Patent number: 4796500
    Abstract: A device for shifting packs (P) of panels along the workpiece support table (L) of a sawing machine. The top surface of a stack of panels (P') comprises a pair of levers (1, 2) hingedly mounted on a motorized carriage (C). The first lower lever (1) frontally contacts the side of the pack (P) by its forward end defining a vertical pushing front (13) and has a lower jaw (17) acting on the underside of the edge of the pack (P), while a second, upper lever (2) forms, with its forward end (20, 21), the upper jaw acting on the top side of the edge of the pack (P). The second lever is actuated for gripping the edge of the pack between the two jaws (17, 20, 21).
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: January 10, 1989
    Inventors: Gino Benuzzi, deceased, by Lidia Benuzzi, Heiress-at-law
  • Patent number: 4501523
    Abstract: Apparatus for feeding platelike workpieces to a machine tool comprises a feed deck adapted to carry a workpiece, a carriage, which carries tongs for gripping the workpiece and is movable in longitudinal and transverse directions to move the workpiece in said directions, a carriage track, which extends in said transverse direction and is mounted on said feed deck to be movable in said longitudinal direction and extends in said transverse direction and is adapted to guide said carriage in said transverse directions, workpiece-supporting elements, which are vertically adjustably mounted on said feed deck and adapted to support a workpiece and arranged in a plurality of rows extending in said transverse direction, a plurality of actuating shafts, each of which is operatively connected to the workpiece-supporting elements of one of said rows and rotatable to vertically adjust the workpiece-supporting elements of said row and is non-rotatably connected to a crank arm, which is operable by a bar, which is rigid with
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: February 26, 1985
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventor: Ludwig Haider
  • Patent number: 4420284
    Abstract: A device for the feeding of material bars for processing machines, with which in a tube the rearward end of the bar is moved in the direction of the processing machine by a piston guided in the tube and loaded by a pressurizing medium. A loading bellows loaded by the pressurizing medium is located behind the piston and a tubular diaphragm, loaded by the pressurizing medium, is located in the tube, supported in a rotatable manner.
    Type: Grant
    Filed: May 22, 1979
    Date of Patent: December 13, 1983
    Assignee: Hans Eisinger
    Inventors: Hans Eisinger, Quido Kraus
  • Patent number: 4388144
    Abstract: A press for coating workpieces has an upper and a lower press plate which can move together and apart. After workpieces are coated and the press opens, they rest on the lower plate from which they are removed. For this purpose an edge portion of the workpieces is lifted by suction members and one or more bars are moved underneath the workpiece which, resting thereon, is then moved out from between the press plates.
    Type: Grant
    Filed: March 18, 1981
    Date of Patent: June 14, 1983
    Assignee: Heinrich Wemhoner GmbH & Co. KG
    Inventor: Heinrich Wemhoner
  • Patent number: 4189269
    Abstract: A workpiece transport device which includes at least one gripper tong arrangement driven in comformity with a work rhythm of a machine tool which is required to be charged and/or discharged. The gripper tong arrangement grips a marginal area of the workpiece, transports the workpiece, and deposits the workpiece at another machine tool or workpiece depository. An extensible and retractable support slide is provided for supporting the workpiece in a transport phase by being displaced beneath the workpiece in parallel to the gripper tong arrangement.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: February 19, 1980
    Assignee: L. Schuler GmbH
    Inventors: Karl Maier, Herbert Hohn