Check-actuated control mechanisms – Control mechanism responsive to plurality of checks – Including electric circuit with switch operated by check
Patent
1988-09-22
1990-05-22
Rolla, Joseph J.
Check-actuated control mechanisms
Control mechanism responsive to plurality of checks
Including electric circuit with switch operated by check
194241, 194353, 194904, G07F 1720, G07F 516
Patent
active
049269976
ABSTRACT:
A coin operated device and method of using such a device which requires a threshold number of coins to activate its operation. Once operation is stopped, however, there is provided a time window, during which the deposit of fewer than the threshold number of coins may restart the device.
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patent: 3438580 (1969-04-01), Siebring
patent: 3933231 (1976-01-01), Vinet
patent: 4383210 (1983-05-01), Wilkinson
patent: 4541519 (1985-09-01), Belviso et al.
patent: 4566033 (1986-01-01), Reidenouer
Ammeen Edward S.
Rolla Joseph J.
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