Opening device for a double lock

Details Opening device for a double lock Opening device for a double lock

1990-01-08

1990-12-25

Nicholson, Eric K.

Closure fasteners

Operators with knobs or handles

70107, E05B 6314

Patent

active

049797670

ABSTRACT:
A united opening device for a double lock comprising a cam disc respectively on the shafts of a main lock and an auxiliary lock, and an intermediate plate which interacts with the two cam discs, able to unlock the auxiliary lock at the same time when the main lock is rotated to unlock after both locks have been locked.

REFERENCES:
patent: 3910613 (1975-10-01), Nolin
patent: 3999789 (1976-12-01), Maurits et al.
patent: 4129019 (1978-12-01), Urdal
patent: 4183563 (1980-01-01), Stevens
patent: 4418552 (1983-12-01), Nolin
patent: 4709565 (1987-12-01), Lin
patent: 4809526 (1989-03-01), Shen
patent: 4838053 (1989-06-01), Shen

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