Lock mechanism

Details Lock mechanism Lock mechanism

1987-09-09

1989-11-21

Smith, Gary L.

Closure fasteners

Bolts

Swinging

292223, 70279, E05B 5102

Patent

active

048817660

ABSTRACT:
A lock including a housing having an actuator slidably mounted within the housing. A latch bolt and a door-position sensor are mounted within the housing, each extensible and retractable relative to the housing. The actuator has an intermediate position where the latch bolt and sensor are free to move into the housing, a deadlocking position with the actuator shifted in one direction from this intermediate position where the latch bolt is deadlocked in an extended position with the sensor retracted, and another position which produces retraction of the sensor and latch bolt. A pneumatic device powers movement of the actuator toward its other position and a spring biases the actuator toward its deadlocking position.

REFERENCES:
patent: 971423 (1910-09-01), Walters
patent: 1038624 (1912-12-01), Messick
patent: 1417430 (1922-05-01), Tulloch et al.
patent: 1569228 (1926-01-01), Hurd
patent: 2032765 (1936-03-01), Rolph
patent: 2325225 (1943-07-01), Burke
patent: 2800347 (1957-07-01), Wardwell, Jr.
patent: 3150894 (1964-09-01), Sant
patent: 3325203 (1967-06-01), Moler
patent: 3796073 (1974-03-01), Guiraud
patent: 3988859 (1976-11-01), Peterson
patent: 3999411 (1976-12-01), Kambic
patent: 4169616 (1979-10-01), Peterson
patent: 4180287 (1979-12-01), Youngblood et al.
patent: 4237711 (1980-12-01), Kambic
patent: 4262504 (1981-04-01), Inoue
patent: 4342209 (1982-08-01), Timms et al.
patent: 4406487 (1983-09-01), Stendal
patent: 4434635 (1984-03-01), Borgato
patent: 4509347 (1985-04-01), Young
patent: 4579376 (1986-04-01), Charlton
patent: 4593543 (1986-07-01), Schlage et al.
patent: 4677834 (1987-07-01), Hicks
patent: 4679416 (1987-07-01), Kambil
patent: 4685709 (1987-08-01), Kambil

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