Patents Examined by M. Nimmo
  • Electrically insulating fastener for heat sinks of different thicknesses
    Patent number: 4587377
    Abstract: An electrically insulating fastener having three pre-assembled elements. A nut with a tubular body and an integral spring flange has a disc-shaped spacer attached to the flange. The spacer has a central opening with a cylindrical collar formed around it. A flexible and resilient rubber sleeve is fitted over the collar. The nut, spacer, and sleeve form a unitary fastener which can be used with a headed threaded fastener to make electrical connections through heat sinks of various thicknesses.
    Type: Grant
    Filed: September 21, 1984
    Date of Patent: May 6, 1986
    Assignee: Illinois Tool Works Inc.
    Inventor: William G. Rodseth