Removable latch handle locking device

Locks – Special application – For control and machine elements

Patent

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Details

70211, 70371, 70DIG49, G05G 500

Patent

active

046401091

ABSTRACT:
A removable locking device for securing latch handles for the cargo doors of trucks, trailers, rail cars and the like against unauthorized access, comprising a slide box member permanently mounted to the exterior of the door, a removable slide member, a latch handle retaining means, and a cylinder lock.

REFERENCES:
patent: 677907 (1901-07-01), Vandeleur
patent: 1719272 (1929-07-01), Lee
patent: 1970485 (1934-08-01), Bins
patent: 2159895 (1939-05-01), Hennicke
patent: 2597583 (1952-05-01), Holmsten
patent: 3151898 (1964-10-01), Olander
patent: 3500668 (1970-03-01), Henry
patent: 4003227 (1977-01-01), Casey
patent: 4082330 (1978-04-01), McWhorter
patent: 4196602 (1980-04-01), Aksdsen
"Security Key Lock", W. A. Kasyan, Oct. 1973, Technical Digest, No. 32, Western Electric, p. 25.

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