Patents Represented by Law Firm Spencer and Kaye
  • Process of forming casting mold for cast pieces having at least one undercut
    Patent number: 4378044
    Abstract: A mold forming tool for use in the manufacture of casting molds by compression of loose mold forming material by a process in which the final compacting is achieved by pressing, for the casting of cast pieces having undercuts, the tool having an elastically deformable portion in the region of the undercuts, and the elastically deformable portion being made of a material which is deformable, thus creating the undercut pattern, solely under the influence of the pressure exerted on the mold forming material during the final compacting.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: March 29, 1983
    Assignee: Goetze AG
    Inventor: Gunther Suchan
  • Plate with glass holder
    Patent number: D270324
    Type: Grant
    Filed: July 28, 1981
    Date of Patent: August 30, 1983
    Inventor: Michael J. French