Flexible or portable closure – partition – or panel – Roll type – With fabric free edge connected operator
Patent
1992-07-22
1993-06-29
Johnson, Blair M.
Flexible or portable closure, partition, or panel
Roll type
With fabric free edge connected operator
160310, 160190, A47H 100
Patent
active
052225410
ABSTRACT:
An industrial roll-up door, having a releasable beam and a tension bracket retention mechanism. The door includes a flexible door panel, which is wound in coiled form on a drum, and an elongated beam is attached to the lower end of the door panel. The ends of the beam are releasably connected to brackets that can be movable in vertical guide tracks mounted along the sides of the doorway. A biasing mechanism attached to each bracket exerts a downward tensioning force on the door panel when in the closed position. A pair of belts each having the same thickness as the door panel are wound on the drum adjacent the side edges of the door panel, and the free end of each belt is connected to the respective bracket. If the beam is released from the brackets by virtue of the door panel, when in the closed or partially open position, being subjected to a transverse impact, the connection of the belts to the brackets will resist the biasing force and retain the brackets at the same proximate vertical level as the beam so that the ends of the beam can be conveniently reattached to the brackets.
REFERENCES:
patent: 1762480 (1930-06-01), Marenti
patent: 2428170 (1947-09-01), McDonald
patent: 2754899 (1956-07-01), Karobonik et al.
patent: 4478268 (1984-10-01), Palmer
patent: 4690194 (1987-09-01), Seuster
patent: 4770224 (1988-09-01), Dubbelman
patent: 4800946 (1989-01-01), Rosenoy
patent: 4887660 (1989-12-01), Kraus
patent: 4997022 (1991-03-01), Klein
patent: 5025847 (1991-06-01), Mueller
patent: 5048588 (1991-09-01), Weishar
patent: 5078197 (1991-01-01), Weisher
patent: 5129442 (1992-07-01), Warner
patent: 5139074 (1992-08-01), Warner
Johnson Blair M.
Kelley Company Inc.
LandOfFree
Industrial door having releasable beam and tension bracket reten does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Industrial door having releasable beam and tension bracket reten, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Industrial door having releasable beam and tension bracket reten will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1748777