Sectional door

Details Sectional door Sectional door

2006-05-23

2006-05-23

Johnson, Blair M. (Department: 3634)

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

With mounting or supporting means

C160S201000, C049S358000, C104S202000

Reexamination Certificate

active

07048029

ABSTRACT:
A sectional door having a door frame, a door panel comprising sections coupled to another in articulated manner, a weight equalization device coupled to the door panel, and an electrical door drive for opening and closing movements of said door panel. The uppermost section in the closed position of the door panel, is guided on running rails as the header section, wherein said rails extend essentially horizontally up to the door frame, and have a vertical end segment on the frame side. The other sections that follow below the header section are guided in guide rails that have a vertical segment along the door frame, a horizontal segment parallel to the running rail that holds the header section, and an arc that joins the two segments. With this device, the door drive is attached to one of the sections connected below the header section, and has at least one power take-off shaft having an impeller at the end. The driven impeller engages in the guide rail and moves the door panel.

REFERENCES:
patent: 3012520 (1961-12-01), Curtis
patent: 4625456 (1986-12-01), Lafontaine
patent: 5036899 (1991-08-01), Mullet
patent: 5343923 (1994-09-01), Keller
patent: 35 38 947 (1987-05-01), None
patent: 41 23 575 (1993-01-01), None
patent: 1 176 280 (2000-07-01), None
EN 12453:2000, DIN Deutsches Institut für Normung e. V., Feb. 2001.

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