Patents Assigned to Ring Screw Works, Inc.
  • Anti-cross thread screw
    Patent number: 4952110
    Abstract: A threaded fastener has an eccentric tip with a smooth portion and a threaded portion. The smooth portion when viewed in side elevation defines an edge on a curve with an arcuate slope and the tip threaded portion is coincident with the shank to provide a threaded fastener which substantially eliminates axial and angular misalignment.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: August 28, 1990
    Assignee: Ring Screw Works, Inc.
    Inventors: Gus G. Avgoustis, Louis Vasilevski, Ronald G. Weiss, Allan J. Thiesen