Overhead door assembly

Details Overhead door assembly Overhead door assembly

2006-01-24

2006-01-24

Johnson, Blair M. (Department: 3634)

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

With mounting or supporting means

C049S403000

Reexamination Certificate

active

06988528

ABSTRACT:
An overhead door assembly as comprised of a plurality of door panels each of which is of hollow extruded plastic material to provide a very light weight panel. The panels are pivotally interconnected with each other and are provided with brush assemblies at opposite ends for engagement with a vertically extending track. Upon impact of the door panels by a vehicle of any type the brushes will disengage from the panel to prevent undue damage to the door panels.

REFERENCES:
patent: 3489200 (1970-01-01), Recchione
patent: 4643239 (1987-02-01), Wentzel
patent: 4685266 (1987-08-01), Mullet
patent: 4887658 (1989-12-01), Cloutier
patent: 5219015 (1993-06-01), Kraeutler
patent: 5558147 (1996-09-01), Nofziger
patent: 5718276 (1998-02-01), Rekret
patent: 5829504 (1998-11-01), Ekstrand et al.
patent: 6041844 (2000-03-01), Kellogg et al.
patent: 6098696 (2000-08-01), Styra
patent: 6679310 (2004-01-01), De Zen

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