Patents by Inventor Lesley Hutton

Lesley Hutton 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).

  • Coin discrimination apparatus
    Patent number: 5469952
    Abstract: Coin discrimination apparatus includes a coin rundown path along which coins roll so as to impact a snubber provided with a piezo electric device. The coin impact produces an oscillatory voltage output from the device, which is sampled over a predetermined period for its peak maximum and minimum values. The values are combined in a predetermined relationship to produce a coin parameter signal indicative of coin mass and the material from which it is made. Coin acceptability is determined on the basis of the value of the coin parameter signal.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: November 28, 1995
    Assignee: Coin Controls Limited
    Inventors: John Kershaw, Lesley Hutton