Exit door locking mechanism having multiple bolts

Details Exit door locking mechanism having multiple bolts Exit door locking mechanism having multiple bolts

1980-07-21

1983-01-18

Lyddane, William E.

Closure fasteners

Bolts

Multiple

292 22, 292 39, 292340, 292DIG60, E05C 904, E05C 912

Patent

active

043689051

ABSTRACT:
A panic exit door locking mechanism in which a manually operable panic exit actuator device is mountable on the inside face of a hinged door having a tubular narrow stile frame along its swinging edge; top and bottom adjustable bolt mechanisms at the upper and lower ends of the frame are connected by length-adjustable rod structures, concealed in the narrow stile frame, with a pair of gear connected actuating levers that are operable by means of a drive shaft having a slip-joint connection with an actuating shaft of the panic exit device. The top bolt mechanism includes a keeper secured to an exposed wall of a door frame header by screw actuated inner and outer clamping members. A latching member carried by the door is movable into a keeper latching position when the door is closed, and to a keeper non-latching position when the door is opened. The top bolt is utilized to dog the latch in its keeper latching position.

REFERENCES:
patent: 781551 (1905-01-01), Quillin
patent: 978380 (1910-12-01), Kennedy
patent: 1346487 (1920-07-01), Doyle
patent: 1638748 (1927-08-01), Santee
patent: 2224675 (1940-12-01), Graham
patent: 2333467 (1943-11-01), Claud-Mantle
patent: 2693372 (1954-11-01), Ludwig et al.
patent: 3127807 (1964-04-01), Modrey
patent: 3244056 (1966-04-01), Kern
patent: 3485112 (1969-12-01), Goosmann
patent: 4083590 (1978-04-01), Folger
patent: 4130306 (1978-12-01), Brkic
patent: 4193618 (1980-03-01), Lee et al.

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