Locks – Operating mechanism – Using a powered device
Patent
1978-12-18
1980-10-21
Bonck, Rodney H.
Locks
Operating mechanism
Using a powered device
70413, E05B 1926, E05B 2700, E05B 4700
Patent
active
042286670
ABSTRACT:
A lock for operation by a magnetic key has locking elements in the form of rollers which can be moved along respective channels in the lock by the magnetic field of the key. Each channel is formed partly in the peripheral surface of a rotatable barrel of the lock and partly in a surrounding sleeve. The barrel can be rotated only when each sleeve is free to move axially relative to the barrel. In the absence of the key, the rollers prevent such axial movement. When the rollers are moved to predetermined releasing positions by the key, they are aligned with respective notches in the sleeves so that axial movement is permitted.
REFERENCES:
patent: 1154078 (1915-09-01), Upton
patent: 1434110 (1922-10-01), Freysinger
patent: 2049742 (1936-08-01), Lowe
patent: 2121301 (1938-06-01), Ractliffe
patent: 2177996 (1939-10-01), Raymond
patent: 3234767 (1966-02-01), Allander
patent: 3421348 (1969-01-01), Hallmann
patent: 3602020 (1971-08-01), Kajita
patent: 3757551 (1973-09-01), Willach
patent: 3965710 (1976-06-01), McCurdy
patent: 3967479 (1976-07-01), Vick
Bonck Rodney H.
Lowe and Fletcher Limited
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