Patents Assigned to Niemin Porter & Co. d/b/a Cast Alloys, Inc.
  • Investment casting gating for metal wood golf club heads
    Patent number: 5538798
    Abstract: Apparatus and directed to improved gating for the investment casting of metal wood golf club heads.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: July 23, 1996
    Assignee: Niemin Porter & Co. d/b/a Cast Alloys, Inc.
    Inventor: John P. Sheehan