Patents by Inventor Stein Kristoffersen

Stein Kristoffersen 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).

  • Patent number: 5149410
    Abstract: A method and apparatus for stripping electrodeposited metal sheets from permanent cathodes comprising a rotating carousel for receiving and sequentially advancing suspended permanent cathodes having electrodeposited metal sheets to a plurality of stations about the carousel including a loading station, a hammering station for loosening the upper edges of the metal sheets from the cathodes, an opening station for stripping of the metal sheets from the cathodes, a discharge station for discharge of pairs of metal sheets, and an unloading station for removal of stripped cathodes. The pairs of stripped metal sheets preferably are bottom discharged to a vertical envelope which is rotated to a horizontal position for removal of the metal sheets. Also, preferably, every second set of a pair of metal sheets is corrugated and alternate sets of planar and corrugated metal sheets are stacked to a predetermined height and bundled to form a novel bundle of metal sheets most suitable for melting.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: September 22, 1992
    Assignee: Falconbridge Limited
    Inventors: Victor E. Robinson, Stein Kristoffersen, Joseph Laezza