Dogging device for latch assembly

Details Dogging device for latch assembly Dogging device for latch assembly

2008-01-03

2011-12-06

Lugo, Carlos (Department: 3674)

Closure fasteners

Bolts

Emergency operating means

C292SDIG065, C070S092000

Reexamination Certificate

active

08070192

ABSTRACT:
A dogging device includes a base mounted in a housing of a latch assembly. The base includes a hole through which a shaft rotatably extends. A limiting keyway extends from the hole and receives and limits rotation of a shaft key on the shaft. A dogging member includes a through-hole receiving the shaft. A keyway extends from the through-hole and receives the shaft key of the shaft, allowing joint rotation of the shaft and the dogging member. By engaging a tool with a driving groove in an end of the shaft or by utilizing a lock core key to turn a lock core that directly pivots the dogging member, the dogging member is pivotable between a first position engaged with a latching/unlatching control rod of the latch assembly to lock a latch bolt in a retracted state and a second position disengaged from the latching/unlatching control rod.

REFERENCES:
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patent: 3614145 (1971-10-01), Zawadzki
patent: 3767238 (1973-10-01), Zawadzki
patent: 4624490 (1986-11-01), Miller
patent: 5927765 (1999-07-01), Austin et al.
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patent: 6205825 (2001-03-01), Haeck et al.
patent: 6532777 (2003-03-01), Haeck et al.
patent: 6769723 (2004-08-01), Cohrs et al.
patent: 6820905 (2004-11-01), Haeck et al.
patent: 7000954 (2006-02-01), Cohrs et al.

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