Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – With mounting or supporting means
Patent
1992-02-28
1994-01-04
Purol, David M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
With mounting or supporting means
160133, 160316, E05F 1100
Patent
active
052752232
ABSTRACT:
A support roller having a one-piece construction which can be cut to size to fit any sized doorway, with an outer perimeter of the support roller or flanges mounted on the support roller having a predetermined configuration to permit a rolling door, gate and the like to assume a substantially circular configuration when rolled up on the support roller, the support roller or each of the flanges being provided with a longitudinally extending recess therein and a longitudinally extending bulge portion thereon for securely mounting an end of the rolling door, gate and the like thereon, where the recess and the bulge portion of the support roller or a rail member provided within the support roller engages with collar portions of the roll-up mechanism to prevent relative rotation therebetween so that the support roller rotates with the collar portions The roll-up mechanism includes a coil spring mounted between the collar portions in such a manner that the innermost collar portion winds up the coil spring when the rolling door, gate and the like is being lowered to a closed position so that the coil spring counterbalances the weight of the door, gate and the like to permit the rolling door, gate and the like to be easily opened, where the roll-up mechanism is mounted within the support roller If required, additional coil springs can be added to the roll-up mechanism to counterbalance the weight of heavier rolling doors, gates and the like.
REFERENCES:
patent: 1081202 (1913-12-01), Brunst
patent: 1132830 (1915-03-01), Cole
patent: 1968719 (1934-07-01), Smurr
patent: 2540742 (1951-02-01), Langer
patent: 2696250 (1954-12-01), Michelman
patent: 3263735 (1966-08-01), Vecchiarelli et al.
patent: 3640332 (1972-02-01), Luby et al.
patent: 3955611 (1976-05-01), Coles et al.
patent: 4519434 (1985-05-01), Forquer
patent: 4633927 (1987-01-01), Labelle
Magro Sebastian
Magro Vincent
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