Patents Assigned to Ring Screw Works
  • Bolt including a cleaning thread point tip
    Patent number: 5667443
    Abstract: A fastener has a head and a shank with two ends. One of the ends includes the head while the other includes a pilot point. Also, the shank includes a threaded portion adjacent to the pilot point. A pair of recesses are formed 180.degree. from one another on the point and threaded portion. The recesses extend from the end of the point through at least a first full thread.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: September 16, 1997
    Assignee: Ring Screw Works
    Inventor: John Allen
  • Anti-cross thread fastener with cleaning tip
    Patent number: 5618236
    Abstract: A threaded fastener has an eccentric tip with a smooth portion, a threaded portion and a cleaning recess formed into the threaded portion of the tip. The recess and tip are formed in the heading operation prior to rolling the threads onto the shank which provides better thread quality.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: April 8, 1997
    Assignee: Ring Screw Works
    Inventor: Gus G. Avgoustis
  • Bolt including a cleaning thread point tip
    Patent number: 5499895
    Abstract: A fastener has a head and a shank with two ends. One of the ends includes the head while the other includes a dog tip point. Also, the shank includes a threaded portion adjacent to the dog tip point. A pair of recesses are formed 180.degree. from one another flush with the point and on the threaded portion. The recesses are continuous with the point and extend through at least a first full thread.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: March 19, 1996
    Assignee: Ring Screw Works
    Inventor: John Allen
  • Anti-cross thread fastener with cleaning tip
    Patent number: 5419667
    Abstract: A threaded fastener has an eccentric tip with a smooth portion, a threaded portion and a cleaning recess formed into the threaded portion of the tip. The recess and tip are formed in the heading operation prior to rolling the threads onto the shank which provides better thread quality.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: May 30, 1995
    Assignee: Ring Screw Works
    Inventor: Gus G. Avgoustis
  • Bolt including a cleaning thread point tip
    Patent number: 5374146
    Abstract: A fastener has a head and a shank with two ends. One of the ends includes the head while the other includes a pilot point. Also, the shank includes a threaded portion adjacent to the pilot point. A pair of recesses are formed 180.degree. from one another on the point and threaded portion. The recesses extend from the end of the point through at least a first full thread.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: December 20, 1994
    Assignee: Ring Screw Works
    Inventor: John Allen
  • 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