Patents by Inventor Rene Jan Al

Rene Jan Al 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).

  • Patent number: 3992568
    Abstract: A pipe coupling affording electrical continuity between all coupling components despite dielectric pre-coating of the individual components. For rendering the coupling components electrically conductive as where required for cathodic protection in a buried underground installation, conductive elements extending through and about the gasket effect electrical continuity between the follower, middle ring and contained pipe. At the same time, selectively located protuberances on each bolt are bared and reliably penetrate the coating on one follower while the bolt nut on makeup penetrates the bolt thread coating and the opposite follower to respectively insure their conductive continuity in the assembly.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: November 16, 1976
    Assignee: Dresser Industries, Inc.
    Inventor: Rene Jan Al