Patents by Inventor Edgar Hofstetter

Edgar Hofstetter 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: 7506669
    Abstract: The support is provided for a reed of a seam weaving machine used for joining two opposite ends of a synthetic fabric by means of a woven seam. The reed is provided with pivotally mounted reed dents (22). The support includes a tilt strip (24) and a pressure strip (30), as well as devices (26, 32) for positioning the tilt strip (24) and the pressure strip (30) at angles relative to the bearing mechanism. A roll is also provided which can be moved along a track across the width of the reed. A U-shaped bar (40) can also be placed on the front side of the reed dents (22).
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 24, 2009
    Assignee: Huyck.Wangner Germany GmbH
    Inventors: Edgar Hofstetter, Norbert Kohfink
  • Publication number: 20080295913
    Abstract: The support is provided for the reed of a seam weaving machine used for joining two opposite ends of a synthetic fabric by means of a woven seam. The reed is provided with pivotally mounted reed dents (22) for sliding seam weft threads to the fell. The support comprises a tilt strip (24) and a pressure strip (30) which are disposed at a distance from the bearing mechanism (20) and apply opposite torques to the reed dents (22), as well as devices (26, 32) for positioning the tilt strip (24) and the pressure strip (30) at angles relative to the bearing mechanism (20) in order to stagger the reed dents (22) in the position thereof by means of the tilt strip (24) and the pressure strip (30) so as to operate the machine in a first mode of operation. A roll is also provided which can be moved along a track across the width of the reed in order to successively swivel the reed dents (22) towards the fell so as to operate the machine in a second mode of operation.
    Type: Application
    Filed: December 1, 2006
    Publication date: December 4, 2008
    Applicant: HUYCK.WANGER GERMANY GMBH
    Inventors: Edgar Hofstetter, Norbert Kohfink
  • Patent number: 6948531
    Abstract: The gripping collet (10) for grasping a thread during the preparation of a woven seam is arranged at the end of a draw-through gripper and has a first and a second clamping element, the first and the second clamping element (20, 24) being able to be clamped against each other for grasping the thread using a pneumatic cylinder. The first clamping element has two cylinder surfaces (20) at a distance from each other and the second clamping element has one cylinder surface (24). The arrangement of the cylinder surfaces (20, 24) is such that the axes of the cylinder surfaces lie parallel to each other and essentially at right-angles to the axis of the pneumatic cylinder and, in the extended state of the pneumatic cylinder, the cylinder surface (24) of the second clamping element lies between the two cylinder surfaces (20) of the first clamping element.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: September 27, 2005
    Assignee: Wangner Finckh GmbH & Co. KG
    Inventor: Edgar Hofstetter
  • Publication number: 20040154678
    Abstract: The gripping collet (10) for grasping a thread during the preparation of a woven seam is arranged at the end of a draw-through gripper and has a first and a second clamping element, the first and the second clamping element (20, 24) being able to be clamped against each other for grasping the thread using a pneumatic cylinder. The first clamping element has two cylinder surfaces (20) at a distance from each other and the second clamping element has one cylinder surface (24). The arrangement of the cylinder surfaces (20, 24) is such that the axes of the cylinder surfaces lie parallel to each other and essentially at right-angles to the axis of the pneumatic cylinder and, in the extended state of the pneumatic cylinder, the cylinder surface (24) of the second clamping element lies between the two cylinder surfaces (20) of the first clamping element.
    Type: Application
    Filed: September 22, 2003
    Publication date: August 12, 2004
    Inventor: Edgar Hofstetter
  • 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