Ferromagnetic barrel lock and corresponding key

Details Ferromagnetic barrel lock and corresponding key Ferromagnetic barrel lock and corresponding key

1988-05-18

1989-06-27

Smith, Gary L.

Locks

Operating mechanism

Using a powered device

70356, 70365, 70413, E05B 4700

Patent

active

048417580

ABSTRACT:
Magnetic key and barrel device wherein the magnets (8) of the key (1) cooperate by repulsion with magnets (25-225) embedded into bascule elements (21-221) movable between a locking position of the lock and an operating position wherein the bascule elements release the rotor-stator interface. The rod (7) of the key (1) is configured as a tube in the wall of which are embedded the magnets (8), and the rotor is configured as a sleeve (14) in the wall of which are arranged the bascule elements (21 and 221). The sleeve (14) has in its center a cylindrical ferrous core (17) which permanently attracts the magnets (25 and 225). The stator (3) which surrounds the rotor (2) is drilled with ports (26 and 226) wherein the magnet-free bascule (21 and 221) ends are sunk. Application to any locking and control lock.

REFERENCES:
patent: 2732703 (1956-01-01), Noregaard
patent: 3416336 (1968-12-01), Felson
patent: 3512382 (1970-05-01), Check et al.
patent: 3518855 (1970-07-01), Kiyoyasu
patent: 3552159 (1971-01-01), Craig
patent: 3584484 (1971-06-01), Hallmann et al.
patent: 4253320 (1981-03-01), Schwab et al.
patent: 4476701 (1984-10-01), Herriott
patent: 4631939 (1986-12-01), Herriott

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