Patents by Inventor Dexter Mac Arthur Thompson

Dexter Mac Arthur Thompson 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).

  • Plastic pipe fitting
    Patent number: 4023831
    Abstract: A pipe fitting of polyethylene is provided wherein the pipe fitting is of integral construction and includes (1) a tubular body member that is fusion bonded at each end to (2) a coupling member, and (3) a movable tubular member that engages one coupling member for axial movement in relation thereto, i.e., telescoping action. The pipe fitting is useful for repairing a damaged pipe in that the one coupling member thereof may be bonded to one exposed end of the damaged pipe while the telescoped tubular member may be moved into engagement with and bonded to the other exposed end of the damaged pipe.
    Type: Grant
    Filed: November 26, 1974
    Date of Patent: May 17, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dexter Mac Arthur Thompson