Patents by Inventor Reinhold Wiedenmann

Reinhold Wiedenmann 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).

  • Grid casting mold for the casting of lead grids for accumulators and methods for its manufacture
    Patent number: 5415219
    Abstract: A grid casting mold for the casting of accumulator lead grids has two plates (11, 12) which can be placed against one another with a casting profile (13) or mold cavity complementary to the lead grid which is to be manufactured being formed in their confronting mold surfaces. The plates (11, 12) moreover have a base body (14, 15) which is provided at the profile side with a thermally insulating layer (16, 17) of high temperature fiber ceramic material which is coated on the side remote from the base body (14, 15) with a high wear resistant metal oxide (18, 19).
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: May 16, 1995
    Assignee: Hagen Batterie AG
    Inventors: Reinhold Wiedenmann, Karl-Christoph Berger, Eberhard Nann