Compact electronic lock

Details Compact electronic lock Compact electronic lock

1995-12-18

1998-08-11

Gall, Lloyd A.

Locks

Operating mechanism

Using a powered device

70189, 70223, 70283, 70379R, 70422, 70472, E05B 4902

Patent

active

057911770

ABSTRACT:
An electronic cylinder lock, including: a generally cylindrical housing having substantially open and closed ends; a barrel member coaxial with and rotatable within the generally cylindrical housing and having receiving apparatus defined at a first end thereof for the insertion into the receiving apparatus of key apparatus, engagement of the receiving apparatus and the key apparatus permitting the barrel member to be manually rotated; shaft apparatus coaxial with the generally cylindrical housing and extending through an opening defined through the substantially closed end, the shaft apparatus having a head end disposed within the generally cylindrical housing and a threaded end extending externally from the substantially closed end for the attachment to the threaded end of locking/unlocking apparatus; a bar at least partially disposed within the head end such that rotation of the bar causes rotation of the shaft apparatus, the bar being axially moveable within the generally cylindrical housing, and the bar being selectively engageable with a second end of the barrel member such that rotation of the barrel member causes rotation of the bar; and apparatus to cause the bar to be disengaged from the second end of the barrel member when the electronic cylinder lock is in a locked position and to cause the bar to be engaged with the second end of the barrel member to permit the receiving apparatus, the barrel member, the bar, and the shaft apparatus to rotate by rotation of the key apparatus to permit the electronic lock to be unlocked.

REFERENCES:
patent: 1776881 (1930-09-01), Birdsall
patent: 2105304 (1938-01-01), Wagner
patent: 2475220 (1949-07-01), Chaulk et al.
patent: 3512381 (1970-05-01), Matsunaga
patent: 3748878 (1973-07-01), Balzano et al.
patent: 4167104 (1979-09-01), Bond
patent: 4663953 (1987-05-01), Fish et al.
patent: 4712398 (1987-12-01), Clarkson et al.
patent: 4899561 (1990-02-01), Myers
patent: 5337588 (1994-08-01), Chhatwal
patent: 5423198 (1995-06-01), DiVito et al.
patent: 5507162 (1996-04-01), Chhatwal

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