Patents by Inventor Franz-Joseph Huttemeister

Franz-Joseph Huttemeister 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).

  • Silver recovery device
    Patent number: 5203979
    Abstract: A device for the electrolytic recovery of silver comprises a cylindrical electrolysis tank (10) made of plastic, against the inner wall surface (11c) of which rests an expendable cathode (30) which is formed into a hollow cylinder and consists of a sheet-type plastic carrier (31) to which a carbon sheet (32) has been applied by bonding.In the rim areas of the tank bottom (12) and the lower side of the removable top (14), projections (13, 15) are provided which extend into the tank (10) and have inclined portions (13a, 15a) extending away from the inner wall surface (11c) and behind which the lower rim portion (31a) and the upper rim portion (31b) of the carrier sheet (31) of the expendable cathode (30) are held, said carrier sheet extending further than the carbon sheet (32).
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: April 20, 1993
    Assignee: Eastman Kodak Company
    Inventors: Gerhard Uffinger, Franz-Joseph Huttemeister