Patents by Inventor Jack P. Spridco

Jack P. Spridco 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).

  • Fabrication and assembly of metal catalytic converter catalyst substrate
    Patent number: 4782570
    Abstract: Method of fabricating and assembling metal catalytic converter catalyst substrates by sequentially laying strips of foil of predetermined widths onto a strip of sheet metal as the latter is formed into a single seam tube about the layers of foil to contain and restrain same, seam welding the tube along its length, and cross cutting the tube and contained layers of foil into predetermined lengths to form catalyst substrate units.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: November 8, 1988
    Assignee: General Motors Corporation
    Inventor: Jack P. Spridco