Patents by Inventor Judith Karabin

Judith Karabin 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 hopper weighing system
    Patent number: 6176774
    Abstract: An apparatus and method are provided for deterring gaming machine theft and fraud by weighing the number of coins accumulated in a gaming machine hopper assembly (9). In one preferred embodiment, a coin weighing apparatus (12) consisting of a load cell (13) and internal strain gauge (18) is constructed integrally with the coin hopper assembly and fits between the coin hopper (10) and its base plate (14). In other preferred embodiments, the coin weighing apparatus (22, 43, 50) is constructed separately from the coin hopper assembly. In these other preferred embodiments, the weighing apparatus includes upper (24, 46, 52) and lower plates (26, 48, 60) which are separated by one or more load cell weighing instruments (28, 45, 56). In operation, the lower plate of this stand-alone weighing apparatus is typically placed against the bottom (8) of the slot machine and the hopper is then simply placed on top of the weighing apparatus' upper plate.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: January 23, 2001
    Assignee: Spinteknology, Inc.
    Inventors: Peter Filiberti, Gary L. Coulter, Judith Karabin