Telephonic communications – With check operated control – Coin signalling or control
Patent
1994-10-18
1996-01-09
Chin, Stephen
Telephonic communications
With check operated control
Coin signalling or control
379150, 379153, 379155, 194247, 194256, 194302, 194344, 194346, H04M 1700, G07F 104, G07F 500, G07F 1100
Patent
active
054835836
ABSTRACT:
A coin transmission control mechanism for a pay phone, including a plurality of projecting rods and slots below the projecting rods, a control plate connected to the projecting rods and having an actuating strip extended out of the telephone body of the pay phone through a hole for guiding a coin during a call, a fixed element, a movable element positioned by a top spring on the fixed element and controlled by an induction coil, a return plate stopped at a sloping wall on the control plate, a control device having a stop bar disposed within the control plate to stop a coin from passing to the coin-box, the movable element being pulled downwards, when the induction coil is turned on, to move the stop bar away for letting a coin pass to the coin-box of the pay phone, the stop bar being forced back to its former position by the control plate through the return plate to stop a coin from passing to the coin-box.
REFERENCES:
patent: 4899371 (1990-02-01), Su
patent: 4984670 (1991-01-01), Merkle
patent: 4991202 (1991-02-01), Su
patent: 5040658 (1991-08-01), LeVasseur
Chin Stephen
Klein David I.
Loomis Paul
Rosenberg Morton J.
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