Patents by Inventor Helmut Halker

Helmut Halker 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: 4948658
    Abstract: A strip of material, especially for papermaking machine cloth covers for the pressing zone, as a filter or as pressing pad for the particle-board presses, comprises individual, longitudinal threads and orthogonally thereto individual transverse threads. In order to endow the strip with a structure such that on one hand it can be manufactured rapidly and economically, and on the other hand to allow wide latitude in shaping its properties, the threads (1) extending in one direction always consist each of a core filament (2) and of at least one loop thread (3) enclosing this filament.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: August 14, 1990
    Assignee: Thomas Josef Heimbach GmbH & Co.
    Inventor: Helmut Halker
  • Patent number: 4761329
    Abstract: The invention concerns a machine felt, in particular a papermaking machine felt, having the following features:(a) the machine felt comprises a support material extending over its entire length,(b) the support material is in several plies over it entire extent,(c) the individual plies consists of at least one belt of material, in particular a knit fabric,(d) the belt of material, or at least one of the belts of material, exceeds the size of the machine felt and overlaps itself forming at least two complete plies,(e) the plies of the support material are connected by at least one pinned web.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: August 2, 1988
    Assignee: Thomas Josef Heimbach GmbH & Co.
    Inventors: Vera Halker, Helmut Halker