Patents by Inventor Erwin Tirp

Erwin Tirp 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: 4917661
    Abstract: A device for collecting bags or sacks in a machine for making the bags or sacks is in the form of a receiving rod which is mounted in the machine frame and extends transversely to the direction in which the bags or sacks to be deposited are advanced or conveyed so that, in use, the bags or sacks are draped over the rod.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: April 17, 1990
    Assignee: Windmoller & Holscher
    Inventors: Erwin Tirp, Heinz Peters
  • Patent number: 4059044
    Abstract: In apparatus for forming and taking away packets of bags deposited on a collecting table by a rotary depositing cylinder of a bag-making machine, the table extends substantially radially to the depositing cylinder, the packets of bags are successively withdrawn by gripper units which pass through the collecting table and take them away in a direction opposite to the direction of rotation of the depositing cylinder. Long and short holding fingers engage through recesses in the collecting table from beneath the latter and project beyond same, are movable longitudinally of the collecting table, can be flexed towards the depositing cylinder and have ends projecting away from the depositing cylinder periphery. The short holding fingers are mounted for reciprocating sliding motion substantially tangentially to the depositing cylinder between their retaining position and a lowered position below the plane of the collecting table.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: November 22, 1977
    Assignee: Windmoller & Holscher
    Inventors: Gunter Schliek, Erwin Tirp