Check-actuated control mechanisms – Including noncontacting – relatively movable parts connected...
Patent
1979-10-17
1981-11-03
Bartuska, F. J.
Check-actuated control mechanisms
Including noncontacting, relatively movable parts connected...
194 1E, 194 1K, G07F 100
Patent
active
042981166
ABSTRACT:
A string detector for a coin-selecting device in which a switch is conditioned to a first state by a string attached to a coin inserted into the device, and conditioned to a second state by the absence of a string, and a coin validator normally conditioned to a first state, and conditioned to a second state by a valid coin. The switch and coin validator are operatively interconnected for determining the handling of the coin depending upon the states of the switch and the coin validator. More particularly, a start-reset timer is provided having a predetermined time interval in which the timer must be started by a coin conditioning the switch to the said first state and subsequently reset by conditioning the switch to the second state, the timer providing an output when the predetermined time interval is exceeded without having the timer reset as is caused by maintaining the switch in the said first state by the presence of a string attached to the coin. The coin validator provides an output when conditioned to said second state by a valid coin. A sensor senses the output of the timer and coin validator for determining the handling of the coin by the device. The sensor can be a logic circuit that can cause different manners of handling the coin in the device at this stage, depending upon the existence of a timer output.
REFERENCES:
patent: 2332018 (1943-10-01), Shann
patent: 2683517 (1954-07-01), Gabrielsen
patent: 3279574 (1966-10-01), Seiden
patent: 3998309 (1976-12-01), Mandas et al.
Bartuska F. J.
Coin Acceptors, Inc.
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