Patents by Inventor Waldemar Neumann

Waldemar Neumann 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).

  • Apparatus for inserting a winding sleeve or core into a winding machine
    Patent number: 5000395
    Abstract: The apparatus for inserting a winding sleeve in a winding machine includes at least one supporting roll, at least two adjustable winder support pieces with spindles positioned opposite each other for receiving the winding sleeve and at least one sleeve gripper pivotable between a sleeve receiving position and a sleeve delivery position alignable axially with the spindles. The sleeve gripper can be mounted on a guide crosspiece above the supporting roll or alternatively pivotally and telescopably on a press roller mount or other crosspiece on one side of the supporting roll.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: March 19, 1991
    Assignee: Jagenberg Aktiengesellschaft
    Inventors: Ewald G. Welp, Waldemar Neumann, Reinhold Hehner, Georg Muller, Hartmut Dropczynski, Luzian Kies
  • Apparatus for inserting a winding sleeve or core into a winding machine
    Patent number: 4909454
    Abstract: The apparatus for inserting a winding sleeve in a winding machine includes at least one supporting roll, at least two adjustable winder support pieces with spindles positioned opposite each other for receiving the winding sleeve and at least one sleeve gripper pivotable between a sleeve receiving position and a sleeve delivery position alignable axially with the spindles. The sleeve gripper can be mounted on a guide crosspiece above the supporting roll or alternatively pivotally and telescopably on a press roller mount or other crosspiece on one side of the supporting roll.
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: March 20, 1990
    Assignee: Jagenberg Aktiengesellschaft
    Inventors: Ewald G. Welp, Waldemar Neumann, Reinhald Hehner, Georg Muller, Hartmut Dropczynski, Luzian Kies
  • Method of and apparatus for the automatic winding of a web of sheet material
    Patent number: 4775110
    Abstract: The apparatus for automatically cutting and rolling up a sheet of material comprises a winder with a least one feed drum. The winder cuts the sheet of material, advantageously first the winder weakens the sheet of material along a cutting line. Then the sheet is cut through or severed by braking. The beginning of a new sheet formed by the cutting is attached to a new roll core by the winder after ejecting the finished rolled up roll and the beginning of the new sheet of material is held fixed during cutting by vacuum on the outer surface of the feed drum.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: October 4, 1988
    Assignee: Jagenberg Aktiengesellschaft
    Inventors: Ewald G. Welp, Herbert Schonmeier, Waldemar Neumann, Reinhard Hehner, Georg Moller