Patents by Inventor Hans U. Weigel

Hans U. Weigel 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 for electroplating a steel strip with a coating metal, in particular zinc or a zinc-containing alloy
    Patent number: 4855021
    Abstract: In a method for electroplating a steel strip with a coating metal, in particular, zinc or a zinc-containing alloy, a thin protective layer consisting of the coating metal is temporarily electrodeposited on one side of the steel strip. After complete coating of the other side, this protective layer is completely or essentially removed in a stripping step in which the coated steel strip as the anode is moved through a stripping electrolyte. The stripping electrolyte contains a sequestering agent, advantageously sodium gluconate.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: August 8, 1989
    Assignee: Rasselstein AG
    Inventors: Horst Bersch, Karl-Heinz Kilian, Hans U. Weigel