Telephone lock guard

Details Telephone lock guard Telephone lock guard

1997-04-03

1999-01-19

Chiang, Jack

Telephonic communications

Terminal accessory or auxiliary equipment

Hood or enclosure

379451, 379437, H04M 100

Patent

active

058622160

ABSTRACT:
A lock guard for use in connection with a lock assembly having a bolt action mechanism comprises a rigid plate bounded by upper and lower walls, the plate fitting against a side of the bolt mechanism, the side walls embracing and surround the top and bottom edges of the mechanism. A front panel embraces and covers a bolt plate to be engaged by the bolt. The guard prevents access to the lock mechanism and bolt plate. The lock assembly is of particular utility in connection with key lock units used in coin-operated pay telephones.

REFERENCES:
patent: 2716882 (1955-09-01), Gill et al.
patent: 3213210 (1965-10-01), Samples
patent: 3297123 (1967-01-01), Hutchins
patent: 3391256 (1968-07-01), Nawman
patent: 3833104 (1974-09-01), Blum
patent: 3910393 (1975-10-01), de Crepy
patent: 4267411 (1981-05-01), Raines
patent: 4406358 (1983-09-01), Zahradnik
patent: 4942748 (1990-07-01), McGough
patent: 5381469 (1995-01-01), Zausner

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