Patents by Inventor William M. Wollet

William M. Wollet 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: 4988860
    Abstract: A trigger switch for use in coin operated devices and particularly in telephone paystations consisting of a plurality of parallel channels each including one or more openings through which a light beam passes. Deposit of coins in the appropriate channels blocks one or more light beams passing through the openings causing detection of the light blockage by associated light detectors to operate to give an indication of the quantity and value of coins deposited through the coin channels. A common trigger mechanism is also included and operates in response to deposit of any coins through the trigger switch, to provide operation of an associated coin relay.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: January 29, 1991
    Assignee: Palco Telecom Inc.
    Inventors: William M. Wollet, Gary Grantland
  • Patent number: 4660706
    Abstract: A special door is added to the coin receiving mechanism of a pay telephone or other vending machine to discourage the practice of stuffing the mechanism with paper or other foreign matter to trap deposited coins. A slot in the door is normally aligned with the regular slot for coin deposit. If stuffing occurs, the door slides over, misaligning the two slots and preventing deposit of any further coins.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: April 28, 1987
    Assignee: GTE Communication Systems Corporation
    Inventor: William M. Wollet