Patents by Inventor Horst Witzler

Horst Witzler 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).

  • Cutter assembly for eavestrough-forming machine
    Patent number: 4218946
    Abstract: The guillotine on a conventional cutter assembly used in conjunction with an eavestrough-forming machine has been modified to produce compacted cut-offs and to prevent jamming of the cutter assembly.A radius is formed in the upper end of each cutting edge of a V-shaped blade. In a preferred embodiment a second, more steeply inclined portion connected at its top end to the radius is provided along each cutting edge.
    Type: Grant
    Filed: March 10, 1978
    Date of Patent: August 26, 1980
    Inventor: Horst Witzler