Patents by Inventor Hans-Juergen Semrau

Hans-Juergen Semrau 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: 4690177
    Abstract: A gripper rod for a shuttleless loom has a toothed rack section made of fiber reinforced synthetic composite, preferably thermoplastic, material. The toothed rack is made of a stack of belts of such material with rectangular perforations increasing in size from the inside out or from the bottom up. By compressing and simultaneously heating the stack the matrix material is cured, whereby the belts are bonded to one another. The gaps between the teeth may extend entirely through the rod or the rod may have a base also made of such belts but not having any perforations.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: September 1, 1987
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Fritz Gehring, Siegfried Roth, Hans-Juergen Semrau