Flexible or portable closure – partition – or panel – Pleating type – Lazy-tong links pivot about axes parallel to panel
Patent
1992-03-04
1993-02-02
Johnson, Blair M.
Flexible or portable closure, partition, or panel
Pleating type
Lazy-tong links pivot about axes parallel to panel
160 231, 160133, E06B 906
Patent
active
051830930
ABSTRACT:
A sealing device for a raisable-curtain warehouse door, the door comprising a curtain and a rigid frame having two vertical lateral uprights, 1,2 interconnected at their top ends by a downwardly-open channel-section cross-member 3 having a web 4, and two flanges, 5,6 and housing mechanical members for operating the curtain, the curtain being capable of being lowered or raised between the uprights. The highest portion of the curtain is situated at a certain distance below the web of the cross-member, below any mechanical members that may be below the cross-member, and a cover, 15;35 having two parallel longitudinal edges, namely a top edge and a bottom edge, is fastened via its top edge to the bottom edge of one of the flanges of the cross-member, and is maintained in an orientation such that its bottom edge is placed against the top portion of the curtain so as to provide continuous closure between the cross-member and the curtain.
REFERENCES:
patent: 4197896 (1980-04-01), Reichstadt
patent: 4327796 (1982-05-01), Rochman
patent: 4359079 (1982-11-01), Bledsoe
patent: 4610292 (1986-09-01), Hausmann et al.
patent: 4649980 (1987-03-01), Kunz
patent: 4725000 (1988-02-01), Deziel
patent: 4828003 (1989-05-01), Kraeutler
patent: 5072767 (1991-12-01), Kraeutler
patent: 5092388 (1992-03-01), Evers
Johnson Blair M.
Nergeco (societe anonyme)
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