Full coin box signalling device for use with coin telephones

Details Full coin box signalling device for use with coin telephones Full coin box signalling device for use with coin telephones

1996-06-14

1998-04-07

Kuntz, Curtis

Telephonic communications

With check operated control

Coin signalling or control

194224, 194230, 194317, H04M 1700, G06M 127, G07F 908, G07D 508

Patent

active

057374015

ABSTRACT:
A coin box monitoring circuit for use in pay telephones, providing coin detection, coin volume totalization, and full coin box signaling to the telephone central office. An included coin chute assembly has three channels that cause nickels, dimes, and quarters to pass through specific locations within each channel. Light sources and light detectors detect the passage of coins. A microprocessor is utilized to control the light sources, monitor the detectors, and volumetrically count the coins passing through the coin chute. On reaching a full condition, a microprocessor then controls a relay to signal that the predetermined coin box level has been reached.

REFERENCES:
patent: 4124775 (1978-11-01), Zarouni
patent: 4206321 (1980-06-01), McElliott
patent: 4599492 (1986-07-01), Otten
patent: 4625078 (1986-11-01), Crouch et al.
patent: 4926468 (1990-05-01), Smith et al.
patent: 4988860 (1991-01-01), Wollet et al.
patent: 5084613 (1992-01-01), Grantland
patent: 5574479 (1996-11-01), Odell

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