Patents Assigned to Air Tuf Products, Inc.
  • Knock-out pin for bolt making machine
    Patent number: 5456100
    Abstract: A knock-out pin for a bolt making machine used for cold forming the heads of steel bolts is constructed with a convex pad on the end of the knock-out pin. The convex pad functions to progressively receive the shock as the head of the bolt is formed in the machine using the knock-out pin.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: October 10, 1995
    Assignee: Air Tuf Products, Inc.
    Inventor: Randal G. Loomis