Disposable construction core

Details Disposable construction core Disposable construction core

1988-06-08

1989-07-04

Gall, Lloyd A.

Locks

Operating mechanism

Key

70371, 70372, 70375, E05B 3300

Patent

active

048438529

ABSTRACT:
A core assembly is provided for use in a lock cylinder formed to include an axially extending core-receiving chamber of figure-8 cross-section providing upper and lower chamber portions. A throw member extending into the lower chamber portion is provided for actuating a lock assembly. The core assembly includes a plug member configured to fit in the upper chamber portion, and an actuator member configured to rotate freely in the lower chamber portion. The actuator member includes means for operably engaging the actuating means so that the lock assembly is actuable upon rotation of the actuator member in the lower chamber portion and an assembly for ejecting the plug member from the upper chamber portion in response to withdrawal of the actuator member from the lower chamber portion.

REFERENCES:
patent: 1474495 (1923-11-01), Segal
patent: 1482189 (1924-01-01), Heyer
patent: 1575092 (1926-03-01), Best
patent: 1866342 (1932-07-01), Best
patent: 3209568 (1965-10-01), Patriquin
patent: 3429154 (1969-02-01), Schwartz
patent: 3715899 (1973-02-01), McCullum
patent: 4098103 (1978-07-01), Raskevicius
patent: 4143531 (1979-03-01), Floyd
patent: 4179908 (1979-12-01), Schaumburg
patent: 4444034 (1984-04-01), Best et al.
patent: 4620430 (1986-11-01), Latone
patent: 4761978 (1988-08-01), Walla

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