Patents by Inventor Hans Helmut Brendel

Hans Helmut Brendel 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).

  • Leather softening machines
    Patent number: 4051701
    Abstract: A machine for processing flat, flexible articles, such as leather, to soften them. The machine utilizes a pair of opposed undulating surfaced processing members having an advance and return movement superimposed on an up and down movement. The opposed processing members are disposed on each side of the article to be processed, and soften the article, as well as move the article along between the processing members.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: October 4, 1977
    Assignee: USM Corporation
    Inventors: Walter Baum, Hans Helmut Brendel