Passage barrier

Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving

Reexamination Certificate

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Details

C049S046000, C049S334000

Reexamination Certificate

active

07841133

ABSTRACT:
A passage barrier (10) with two barrier elements (24, 26) and two mutually aligned shafts (16, 20) which are separate from each other and can be driven by separate motors (14, 22), whereby one barrier element (24, 26) is retained on each shaft (16, 20), and can be swivelled independent of the other barrier element (26, 24) by driving the corresponding shaft (16, 20).

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patent: 5718089 (1998-02-01), Dakin
patent: D539921 (2007-04-01), Williman
patent: 3138201 (1983-04-01), None
patent: 1 475 509 (2002-08-01), None
patent: 2423327 (2006-08-01), None
patent: WO 2005049948 (2005-06-01), None
Align definition, downloaded from http://www.thefreedictionary.com/align; The American Heritage® Dictionary of the English Language, Fourth Edition copyright © 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. Definition provided in action mailed with this form.

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