Patents by Inventor Hans Eugen Hacker

Hans Eugen Hacker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6554029
    Abstract: A harness for a seam weaving machine including a Jacquard machine is prepared while the shedding mechanism is removed from the seam weaving machine. The prepared shedding mechanism is then mounted on the seam weaving machine. The twines extending from the Jacquard machine and the harness cords connected to eyelets of the shedding mechanism are coupled collectively. The seam strip weft threads can be drawn in through the shedding mechanism while it is remote from the seam weaving machine.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: April 29, 2003
    Assignee: Wagner Finckh GmbH
    Inventors: Edgar Hofstetter, Ernst Gluck, Hans Eugen Hacker
  • Patent number: 5421373
    Abstract: A support for the reed of a seam-weaving machine for joining the ends of a flat-woven, paper-making fabric by means of a woven seam includes a reed having reed dents for the shifting of the auxiliary weft threads against the fell. The reed dents are pivotally mounted and press successively against the auxiliary weft thread to be shifted starting from the fabric end from which the auxiliary weft threads protrude as a warp fringe. In order that the reed dents are gradually shifted by the movement of the sley, the reed dents are staggerable in their position such that the points at which the reed dents touch the auxiliary weft thread to be shifted lie roughly on a straight or slightly curved line whose distance from the fell increases, starting from the point of emergence of the auxiliary weft thread from the fabric end.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: June 6, 1995
    Assignee: Novatech GmbH Siebe und Technologie fur Papier
    Inventors: Hans-Eugen Hacker, Edgar Hofstetter
  • Patent number: 5411063
    Abstract: A seam-weaving machine for making a fabric endless by a woven seam is provided with a fringe catcher adjacent the edge zone of the woven seam. The fringe catcher, after a shed change, is moved forward beyond the fell by a drive device and upon return of the fringe catcher, draws an upwardly protruding fringe thread away to the rear above the already formed part of the woven seam.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: May 2, 1995
    Assignee: Novatech GmbH
    Inventors: Hans-Eugen Hacker, Edgar Hofstetter, Eckhard Kaminski
  • Patent number: 5134759
    Abstract: A plate for a separator for the successive seizure and separation of threads held in an array has a leading edge and at least one hook-shaped recess in the leading edge. The recess has a depth in the direction of plate movement which is greater than half the width of the recess. Between a hook tip and the leading edge there extends a fender edge at an angle of to relative to the direction of plate movement. The hook tip is rounded with a radius of up to 10% of the width of the hook-shaped recess.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: August 4, 1992
    Assignee: Hermann Wangner GmbH & Co. KG
    Inventors: Hans-Eugen Hacker, Klaus Esser
  • Patent number: 5003675
    Abstract: A separator for successively seizing threads held in an array includes a frame, in which at least one plate is guided for seizing the threads. The frame is displaceable toward and away from the array. Each plate carries a piercing needle which pierces the thread for seizing it. Each plate can have two piercing needles disposed at a distance from one another and pointing towards one another.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: April 2, 1991
    Assignee: Herman Wangner GmbH & Co. KG
    Inventors: Klaus Esser, Hans-Eugen Hacker
  • Patent number: 4866821
    Abstract: A separator for successively seizing threads (14) held in an array (28) includes a frame (10) having a front face or recess gap (12) and in which two or more strap or bar needles (15, 16, 18) are slidably disposed side by side. Each needle is provided with a pair of facing hooks (20, 22; 24, 26) at opposite sides of a cutout in its forward edge for cooperatively seizing a single thread for separation when the needles are driven in opposite directions.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: September 19, 1989
    Assignee: Hermann Wangner GmbH & Co. KG
    Inventors: Hans-Eugen Hacker, Peter Defranceski
  • Patent number: 4750253
    Abstract: The method produces a flat spiral link assembly from at least four synthetic resin monofilament helices wound winding to winding which are simultaneously supplied for meshing engagement. Before being meshed the helices are stretched to at least three times their length and are thermoset in stretched condition. The alternatingly right-hand and left-hand helices are caused to mesh in zipper fashion and are interlocked by pintle wires. In order to facilitate the insertion of the pintle wires the helices are extended by about five percent. The apparatus for performing the method comprises two feed rolls forming a first roll nip through which helices are passed to a heating chamber. Draw-off rolls withdraw the helices from the heating chamber at least at three times the peripheral speed of the feed rolls. The apparatus also comprises a shunt for joining the helices and a device for inserting the pintle wires.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: June 14, 1988
    Assignee: Hermann Wangner GmbH & Co., KG
    Inventors: Fritz Bleher, Klaus Esser, Hans-Eugen Hacker, Rudi Hess-Bauer, Eugen Kehrer, Hartmut Waldvogel