Patents by Inventor Gordon S. Riddles

Gordon S. Riddles 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).

  • Coupling for joining pipe fittings having offset lug restraints
    Patent number: 5464257
    Abstract: A pipe fitting coupling has a generally ring-shaped body with two pairs of diametrically opposed radially outwardly projecting lugs spaced 90.degree. one from the other. The coupling is interposed between the bells of pipe fittings to be joined, with each bell having only a pair of misaligned diametrically opposed lugs. The lugs on the coupling align with the misaligned lugs of the pipe fittings and restraints are disposed about the aligned lugs to secure the pipe fittings to one another.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: November 7, 1995
    Assignee: The Harrington Corporation
    Inventors: Gordon S. Riddles, Jerry O. Burke