Patents by Inventor Robert Huizenger

Robert Huizenger 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).

  • Publication number: 20080135388
    Abstract: A rocker switch has a housing, a switch supported by the housing, a rocker supported by the housing, a switch actuator operably associated with the switch and the rocker so as to operate the switch upon rocking of the rocker, and a display supported by the housing in a position to be viewable by a user of the rocker switch.
    Type: Application
    Filed: November 10, 2006
    Publication date: June 12, 2008
    Inventors: George Hoehne, Joe Ferrantelli, Robert Huizenger
  • Patent number: 6098777
    Abstract: A method and apparatus for identifying a coin in free fall employs a coin sensor that has a pair of drive coils for generating a horizontally elongated magnetic field across a free-fall path of the coin. The drive coils are driven by a square wave, and ringing waveforms induced in a pair of sensor coils disposed on the two sides of the free-fall path are measured when the coin passes through the magnetic field. A digitized signature is derived from the measured ringing waveforms and compared to a set of pre-stored reference signatures to find a match. A diverter mechanism directs the coin to an accept path when a match is found and to a reject path when a match is not found.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: August 8, 2000
    Assignee: Coin Mechanisms, Inc.
    Inventors: Kirk D. Hoffman, Robert Huizenger, Joe Ferrantelli
  • Patent number: 5823315
    Abstract: An apparatus for detecting fraud in a coin detector is disclosed. The apparatus is provided with a coin validating device. A coin sensing apparatus, located downstream of the coin validating device and preferably including a plurality of optic emitter-detector pairs arranged to detect the passage of the coin, is also provided. The coin sensing apparatus is adapted to provide improved resistance to miscounting of coins and to traditional gimmicks used to cheat coin operated devices such as tilting the coin detector.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: October 20, 1998
    Assignee: Coin Mechanisms, Inc.
    Inventors: Kirk D. Hoffman, Joe Ferrantelli, Robert Huizenger
  • Patent number: 5568855
    Abstract: A coin detection and identifying apparatus and method, utilizes three closely aligned electric coils. The center coil is actively driven by an alternating current to generate a magnetic field that surrounds the center coil. The two outer coils are symmetrically disposed within the magnetic field generated by the center coil, and voltages are induced across the terminals of the outer coils which are indicative of the relative field strengths of the magnetic fields within the outer coils. A sample coin and test coin are interposed between the center coil and each of the outer coils, the coins operative to attenuate the surrounding magnetic fields. A controller compares the voltages across the terminals of the two outer coils to effectively compare the likeness of the sample and test coins. A coin sensing apparatus, located downstream of the coils, provides a plurality of optic emitter-detector pairs to detect the valid passage of a coin.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: October 29, 1996
    Assignee: Coin Mechanisms, Inc.
    Inventors: Kirk D. Hoffman, Joe Ferrantelli, Robert Huizenger