Patents by Inventor Edgar A. Jett, III

Edgar A. Jett, III 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).

  • Door interlock security device
    Patent number: 4011686
    Abstract: A transfer-chamber two-door interlock security device includes a rocker arm which can be rocked between first and second door locking positions. If the rocker arm is in a first-door locking position and the second door is opened, a latch flange on the rocker arm engages an edge of the open door to thereby prevent the rocker arm from rocking.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: March 15, 1977
    Assignee: Carmine Foods, Inc.
    Inventors: Edgar A. Jett, III, Maurice L. Phillips