Patents by Inventor Werner Weitzel

Werner Weitzel 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).

  • Connecting element and a method of manufacture the same
    Patent number: 4185439
    Abstract: A connecting element, particularly for windows, doors and the like, has two elongated profiled elements spaced from one another in a first direction transverse to the direction of elongation thereof so as to bound with one another a channel, and two heat insulating inserts located in the channel, which inserts extend in the first direction between the profiled elements and are spaced from one another in a second direction transverse to the first direction so as to provide an intermediate hollow space between the inserts.
    Type: Grant
    Filed: April 25, 1978
    Date of Patent: January 29, 1980
    Assignee: Eduard Hueck
    Inventors: Klaus Bischlipp, Werner Weitzel, Walter Hueck