E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
160/9
E06B 9/58 (2006.01)
Patent
CA 1224402
ABSTRACT OF THE DISCLOSURE A pressure differential compensating door includes a curtain for closing a doorway having a first upper end, a second lower end and side edges and a curtain winding mechanism having the first end of the curtain attached thereto for raising and lowering the curtain. In addition there is a pair of spaced apart guide channels in which side edge sections of the curtain are movable. These side edge sections are sealingly engagable with the channels. A door pressure releasing mechanism connects the door in sealing engagement with a door surrounding structure. The releasing mechanism is operable to move the door away from the door surrounding structure prior to the curtain being raised and to release any pressure differential existing on opposing sides of the door. Special friction reducing members are fixed to both of the side edge sections and extend therealong to reduce the amount of friction between these sections and their guide channels.
450427
Copper Cliff Door Manufacturing (1980) Ltd.
Ridout & Maybee Llp
LandOfFree
Industrial door 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Industrial door will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1180616