Coordinated door stop and latch

Details Coordinated door stop and latch Coordinated door stop and latch

1986-12-30

1988-08-23

Smith, Gary L.

Closure fasteners

Bolts

Emergency operating means

292DIG65, 292219, 29234117, 292254, E05C 1502

Patent

active

047656620

ABSTRACT:
A coordinated door stop and latch includes a retractable stop, a sliding bolt latch, and a mechanism between the stop and latch. The sliding bolt is used to latch the door to preclude inward movement in a normal fashion. If emergency outward operation of the door is required, retraction of the stop causes ejection of the sliding bolt from its strike opening, thereby enabling resuce door operation.

REFERENCES:
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patent: 897749 (1908-09-01), Krafft
patent: 1904291 (1933-04-01), Neilson et al.
patent: 3042435 (1962-07-01), Wieseler et al.
patent: 3172168 (1965-03-01), Suska
patent: 3220759 (1965-11-01), Miller
patent: 3862774 (1975-01-01), Johnson
patent: 3946460 (1976-03-01), Johnson
patent: 4081980 (1978-04-01), Hightower
patent: 4110867 (1978-09-01), Gwozdz
patent: 4216986 (1980-08-01), McNinch et al.
patent: 4230352 (1980-10-01), Sealey et al.
patent: 4271691 (1981-06-01), Logan
patent: 4669282 (1987-06-01), Hoyt et al.

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