Double-curtain rapid-opening door

Details Double-curtain rapid-opening door Double-curtain rapid-opening door

2006-03-21

2011-12-13

Mitchell, Katherine (Department: 3634)

Flexible or portable closure, partition, or panel

Pleating type

With slide guides

C160S133000

Reexamination Certificate

active

08074697

ABSTRACT:
The present invention comprises two sheets of canvas fabric or curtains and means for rolling up vertical strips or bands connected to intermediate crosspieces that move along guides when the strips are taken up. The crosspieces have a hollow cross section with an upper ridge and a lower ridge with holes for the strips to pass through. The crosspieces have, on the outer lateral faces, at least one groove for the fastening, by means of a bead, of bands for joining to the adjacent curtain. The inner faces of the crosspiece have one or more rounded longitudinal projections for guiding the displacement strips. The crosspieces comprise shock-proof elastic element arranged on the upper and/or lower ridge.

REFERENCES:
patent: 2007/0193698 (2007-08-01), Kraeutler
patent: 2008/0099156 (2008-05-01), Kraeutler
patent: 2150831 (2000-12-01), None
patent: 1061264 (2006-01-01), None
patent: 1061265 (2006-01-01), None
patent: 2769944 (1999-04-01), None
patent: 2861121 (2005-04-01), None
patent: 2868462 (2005-10-01), None
International Search Report dated Jun. 27, 2006, issued in corresponding international application No. PCT/ES2006/000138.

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