Closure fasteners – Keepers – With movable dog – catch or striker
Reexamination Certificate
2008-02-13
2011-11-01
Beach, Thomas A (Department: 3674)
Closure fasteners
Keepers
With movable dog, catch or striker
C292S340000, C292S341170, C292S341150
Reexamination Certificate
active
08047585
ABSTRACT:
A surface mounted electric strike for use with an exit device such as a rim panic exit device. The electric strike has a housing with at least one keeper pivotally mounted to the housing. Each keeper has an associated cam with a detent. Release pawls engage detents on the cam in the locked position. A solenoid-operated unlock bar has stops, the position of which establishes whether the keepers are in a locked or unlocked position. The electric strike can be installed in either a fail safe or fail secure mode by locating the stops when the solenoid is de-energized in either a position which blocks or releases the release pawls. Other arrangements for establishing a selected operational mode include use of dual solenoids, use of dual locking bars and reversible release pawls.
REFERENCES:
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patent: 5915766 (1999-06-01), Baumeister et al.
patent: 6390520 (2002-05-01), Holzer
patent: 6595563 (2003-07-01), Kiernan
patent: 7021684 (2006-04-01), Orbeta et al.
patent: 7438335 (2008-10-01), Uyeda
Hanchett, Jr. Leland J.
Peabody Joshua Todd
Scheffler Dominik
Webb Michael A.
Beach Thomas A
Hanchett Entry Systems, Inc.
Williams Mark
Woods Oviatt Gilman LLP
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