Locking device with two simultaneously actuated cylindrical plug

Details Locking device with two simultaneously actuated cylindrical plug Locking device with two simultaneously actuated cylindrical plug

1997-06-03

1998-11-24

Dino Barrett, Suzanne

Locks

Portable

Padlocks

70 39, 70339, E05B 6724

Patent

active

058393021

ABSTRACT:
A locking device includes a lock body with two blind bores and a shackle with two parallel arms for insertion into the bores. The lock body further includes two key-actuated cylindrical plugs, an accommodation chamber disposed therein proximate to the plugs, and a linkage member provided within the chamber to interlink the plugs in such a manner that only simultaneous actuation of the cylindrical plugs can retract the spring-loaded latch bolts to release the shackle from the blind bores of the lock body.

REFERENCES:
patent: 912773 (1909-02-01), Augenbraun
patent: 2834195 (1958-05-01), Stackhouse
patent: 3581530 (1971-06-01), Raspadori
patent: 3808984 (1974-05-01), Teleky
patent: 4216664 (1980-08-01), Slavinsky
patent: 4332153 (1982-06-01), Miles
patent: 4351171 (1982-09-01), Tsui
patent: 4655062 (1987-04-01), Kaufman
patent: 5189893 (1993-03-01), Kortenbrede
patent: 5417092 (1995-05-01), Iu
patent: 5640861 (1997-06-01), Chen
patent: 5720191 (1998-02-01), Tsung-Chuan et al.
patent: 5727407 (1998-03-01), Cowen

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