Patents Assigned to Bollhoff & Co. GmbH & Co. KG
  • Screw threaded insert
    Patent number: 5131795
    Abstract: A screw threaded insert adapted to be fitted in a bore of a workpiece made of thermoplastic material. The screw threaded insert is externally tapered at an angle of about four (4) degrees and is defined externally with a thread of approximately equal pitch and depth, and of saw toothed shape. The insert is also threaded internally for receiving a bolt. A pair of cutting slots is also provided.
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: July 21, 1992
    Assignee: Bollhoff & Co. GmbH & Co. KG
    Inventor: Klaus Kobusch