Patents by Inventor Robert E. Doggett

Robert E. Doggett 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).

  • Patent number: 3978321
    Abstract: A portable hand-carried battery-operated electronic automobile counting device designed for counting automobiles entering a paid parking area as a check on attendant's collection of parking fees. The devices will normally be stored when not in use in the manager's office and will be given to individual attendants for placement at appropriate parking entrance driveways prior to the start of the event which will attract persons arriving by automobile to the parking area. The device is equipped with a counter and a locking energizing switch. On delivery of the device to the attendant, the supervisor will reset the counter and lock the energizing switch in "on" position. The device is equipped with a second series connected position responsive switch which maintains the device in deactivated position while being manually carried to its position of use, and which automatically completes the energizing circuit when placed in its position of use.
    Type: Grant
    Filed: August 22, 1974
    Date of Patent: August 31, 1976
    Inventor: Robert E. Doggett