Patents Assigned to GAM Investments, L.L.C.
  • Patent number: 6330740
    Abstract: A part is stamped from a steel sheet having a textured surface. The stamped part is coated with a zinc layer. The zinc layer is coated with a chromate conversion layer, either yellow-colored or black-colored. Preferably, the textured surface is produced by embossing the steel sheet. Alternatively, the textured surface is produced by etching, shot peening, or sand blasting the sheet steel. An exterior surface comprised of at least some of the textured surface of the part, as coated with such layers, has a finish simulating the similarly-colored, textured finish that the part would have if the part were stamped from a steel sheet so that the part would have a smooth, exterior surface and if the smooth, exterior surface were to be electrostatically coated with a black-colored, epoxy powder, which would be heat-cured.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: December 18, 2001
    Assignee: GAM Investments, L.L.C.
    Inventor: Alan C. Krempels