Patents by Inventor Joel R. Doucet

Joel R. Doucet 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).

  • System for managing a panel of objects such as keys
    Patent number: 4549170
    Abstract: Each object on a panel has a respective location designated by an address and associated with an indicator lamp. A panel managing system comprises a memory for successively reading location address combinations. The indicator lamps are successively energized at the locations designated by the addresses read from one and the same combination so that a collector withdraws or inserts the objects at designated locations. The objects are detected to check the normal presence or absence of the objects in the panel after withdrawal or insertion of each object.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: October 22, 1985
    Inventors: Bernard M. Serres, Joel R. Doucet