F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
277/39
F16F 9/34 (2006.01) F16F 9/36 (2006.01) F16J 9/06 (2006.01) F16J 15/16 (2006.01) F16J 15/32 (2006.01)
Patent
CA 1254593
ABSTRACT A seal unit having a casing portion and an elastomeric seal body bonded thereto, with the seal body including an excluder lip, a primary liquid seal lip and a secondary gas or vapor sealing lip. The primary and secondary lips insure against leakage in both the static and dynamic conditions of the seal. The gas or vapor sealing lip is seated against the valve body of an associated mechanism. The gas or vapor lip in effect provides a relief valve action and is able to be urged into a position of engagement with another part of an associate machine member by its own inherent resiliency. The relief valve bleeds gas and liquid in one direction but not in the opposite direction.
447624
Chicago Rawhide Manufacturing Company
Osler Hoskin & Harcourt Llp
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