E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
160/9
E06B 9/08 (2006.01) E06B 9/13 (2006.01) E06B 9/60 (2006.01)
Patent
CA 1178882
ABSTRACT OF THE DISCLOSURE The present invention relates to a damage-minimizing door comprising: a flexible curtain having a first upper end and a second lower end and side edges; and a curtain winding mechanism. The first end of said curtain is secured to the curtain winding mechanism for moving the curtain upwards and downwards. There are a pair of parallel spaced apart guide channel means in which the side edges of the curtain are movable, sealingly engageable therewith under at least atmospheric pressure and releasable therefrom at a predetermined impact force on said curtain.
366186
Copper Cliff Door Manufacturing (l980) Limited
Ridout & Maybee Llp
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