Patents by Inventor John L. Lightner

John L. Lightner 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).

  • Injectable grommet assembly
    Patent number: 4289924
    Abstract: An injectable grommet assembly for passing a bundle of insulated electric wires through a bulkhead comprises a pair of assembled shells having complementary grommet and flange segments. The grommet segments form an annular seal chamber which surrounds the bundle of insulated electric wires. A wire clip disposed in this chamber spreads out the bundle of insulated wires so that sealant injected into the chamber also fills spaces between the insulated electric wires. The assembly also includes a gasket for sealing against the face of the bulkhead.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: September 15, 1981
    Assignee: General Motors Corporation
    Inventors: Warren Pearce, Jr., Stephan H. Schramme, John L. Lightner, Joseph A. McGee