Patents by Inventor Bill Charlton

Bill Charlton 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: 5475378
    Abstract: An electronic access control mailbox system comprises a plurality of mail box stations. Each station consists of a locker of mail box compartments each having a door with electrically controllable solenoid operated latch, a card reader, and a local controller electrically coupled to the solenoid of each compartment door. A central controller is in electrical communication with the card reader and the local controller of each mail box station. Identification data read at the card reader of each mail box station is communicated to the central controller for processing and the central controller in turn communicates a command to the local controller for controlling operation of the solenoid operated latches of each compartment door in response to the identification data road. The system offers secure electronic access to the mail boxes which are under centralized control and monitoring.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: December 12, 1995
    Assignee: Canada Post Corporation
    Inventors: Enn Kaarsoo, Bill Charlton