Patent ID: 6513639
Filing Date: 2003-02-04
Classification: G07D,G07F

Abstract:
Security apparatus for preventing deception of a coin acceptor unit used to allow only paid operation of machinery, where such deception is caused by use of a moving magnetic field which a thief may produce by moving a magnet near the coin acceptor unit to induce currents in the mechanism's circuitry so as to cause a false determination that a proper coin has been received and allow unpaid operation of the controlled machinery; said security apparatus comprising:means to detect a moving magnetic field; and a time out means to, upon detection of said field, turn off power needed for operation of said coin acceptor unit and said machinery and keep said power off for a predetermined time out period, and, at the end of said time out period, restore said power and restore said coin acceptor unit to normal settings, so as to allow normal operation of said coin acceptor unit and machinery.