Patents by Inventor Fredy Lauer

Fredy Lauer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Threaded connection having multi-part threaded bolt
    Patent number: 4690600
    Abstract: The threaded connection is formed between a tapped component and an externally threaded two part bolt. The two bolt parts are each provided with an external thread of the same pitch and hand in order to be threaded simultaneously into the tapped component. One bolt part is also provided with an extension which is threaded into the other bolt part via a screw thread which has an opposite hand or pitch to the external screw threads. When the two bolt part are threaded into the tapped component, the screw threaded extension prevents unthreading of one bolt part relative to the other.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: September 1, 1987
    Assignee: Sulzer Brothers Limited
    Inventor: Fredy Lauer