Telephonic communications – Terminal accessory or auxiliary equipment – Hood or enclosure
Patent
1996-11-22
1998-03-31
Chiang, Jack
Telephonic communications
Terminal accessory or auxiliary equipment
Hood or enclosure
379451, 379437, 379368, H04M 100
Patent
active
057347174
ABSTRACT:
A reinforced pay phone casing structure includes an outer casing member having a plurality of openings formed thereon for movably receiving therein dial buttons and an inner reinforcement plate fixed to an inside surface of the casing member by means of welding. The inner reinforcement plate has an opening corresponding to and covering the plurality of dial button openings of the outer casing member. A circuit board shielding plate is fixed to the inner reinforcement plate and the outer casing member by means of bolts. A dial button bezel defining therethrough a plurality of passages for movably receiving therein the dial buttons is arranged between the inner reinforcement plate and the circuit board shielding plate with the bezel received within the opening of the inner reinforcement plate to have the dial button partially extending out of the outer casing member. The circuit board shielding plate has a plurality of pin holes corresponding to and having a cross-sectional dimension smaller than the dial button openings of the outer casing member to movably receive therein pins, the pins having a front end in engagement with the dial buttons and a rear end in engagement with buttons provided on the circuit board so that pushing the dial buttons at the outer casing member drives the corresponding pins to trigger the buttons of the circuit board.
REFERENCES:
patent: 5590191 (1996-12-01), Guevara
Cheng Li-Te
Lin Sung-Min
Chiang Jack
Karlin Telecomm Corporation
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