Seal assembly for pressure or vacuum chambers

Details Seal assembly for pressure or vacuum chambers Seal assembly for pressure or vacuum chambers

F - Mech Eng,Light,Heat,Weapons

16

J

277/18

F16J 15/46 (2006.01) D21F 3/10 (2006.01)

Patent

CA 1043380

IMPROVEMENTS IN SEAL ASSEMBLY FOR PRESSURE OR VACUUM CHAMBERS ABSTRACT OF THE DISCLOSURE Improvements in seal assembly for use in pressure or vacuum chambers or the like comprising a sealing element which may be selectively placed in sealing condition or retracted to a non-sealing condition, the sealing element having a sealing sur- face adapted to be urged into contact with a wall member and also a surface including portions against load members which may be loaded to urge the sealing surface into sealing condition or re- laxed, and spring unit for continuously urging the sealing ele- ment sway from sealing condition whereby the sealing element is in fact urged out of sealing condition when the load members are relaxed.

265466

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