Emergency seal

Details Emergency seal Emergency seal

F - Mech Eng,Light,Heat,Weapons

16

J

277/25, 277/39

F16J 15/00 (2006.01) B63H 23/32 (2006.01) F16J 15/54 (2006.01)

Patent

CA 1214480

ABSTRACT A safety seal for a shaft passing through a housing. The seal is normally maintained in a non- sealing relationship to the shaft, but may be actuated during emergency conditions by levers. The seal includes an annular, split housing having a radially extending compartment which contains at least two seal members which are held together by a bias to define a seal annulus. The seal members are radially contracted into sealing engagement and expanded to a non-sealing position by cams or levers mounted in the seal members.

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