Cylindrical lock with a magnetic body

Details Cylindrical lock with a magnetic body Cylindrical lock with a magnetic body

1978-12-08

1981-09-22

Wolfe, Robert L.

Locks

Operating mechanism

Using a powered device

70365, 70417, E05B 4700

Patent

active

042902851

ABSTRACT:
A cylinder lock has a lock body with a cylindrical throughbore and two longitudinally extending grooves in its internal surface. A lock cylinder is mounted in the throughbore for rotation therein between a locking position and an unlocking position and has a longitudinally extending key passage and is responsive to the insertion of a suitable magnetic key in the key passage to enable rotation thereby from a locking to an unlocking position. A plurality of magnetic bodies are mounted on both sides of the key passage for rotation about an axis perpendicular to the longitudinal axis of the cylinder to a unique angular position when the suitable key is inserted with corresponding recesses which are longitudinally aligned in two lines when the magnetic bodies are in their unique position. Two blocking laths are slidably mounted on either side of the key passage alignable with and receivable in the grooves when the lock cylinder is in the locking position to enable movement into a blocking position therein and alignable with and receivable in the recesses when the magnetic bodies are in their unique positions and are urged outwardly from the lock cylinder into the blocking position.

REFERENCES:
patent: 1422497 (1922-07-01), Thompson
patent: 3665740 (1972-05-01), Taniyama
patent: 3855827 (1974-12-01), Hallman
patent: 3935720 (1976-02-01), Boving

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