Electrically driven entryway actuation system

Movable or removable closures – Optionally moved – manually – or by motor

Reexamination Certificate

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Details

C049S118000, C049S122000

Reexamination Certificate

active

07946079

ABSTRACT:
An electrically driven entryway activation system for opening and closing two spaced swinging doors hung on spaced rotating parallel door posts comprises a base plate extending between the door posts. Levers attached to each door post rotate in a plane parallel to the base plate. A low profile actuation system spaced between the levers comprises a center post, a sector gear journaled on the center post for rotation parallel to the base plate, and a low profile gearmotor mounted between the base plate and the sector gear. A low profile emergency manual mechanism is provided for unclutching the output pinion gear of the gearmotor.

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patent: 7254918 (2007-08-01), Fronz et al.
patent: 2002/0162279 (2002-11-01), Pagowski et al.

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