Patents by Inventor Hans Behrens

Hans Behrens 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).

  • Method and device for forming three-dimensional envelopes
    Patent number: 5379708
    Abstract: For forming three-dimensional envelopes of at least two blanks (11, 13) which are to be sewn together, the first blank (11) is laid on a first support surface of a carrier body (14) in such a manner that its edge portion projects beyond the carrier body. Thereafter, a second blank (13) is laid on a second support surface of the carrier body (14), the edge portions (11a, 13a) of both blanks projecting obliquely from the blanks and forming a double flange portion projecting from the carrier body (14). A sewing machine is guided along the root line (57) formed by the kink lines of the edge portions (11a, 13a) so that a seam interconnecting the blanks (11, 13) is created there.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: January 10, 1995
    Assignee: Moll Automatische Naehsysteme GmbH, i.g.
    Inventors: Philipp Moll, Hans Behrens