Multi-function fluid seal for dampers and the like

Details Multi-function fluid seal for dampers and the like Multi-function fluid seal for dampers and the like

1983-02-18

1985-04-02

Maslousky, Paul E.

Expansible chamber devices

With guide or seal on cylinder end portion for piston or...

Non-metallic seal means between piston or member and end...

18832217, 277 27, 277153, F16J 1518

Patent

active

045080208

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 separate gas or vapor sealing lip. The primary and secondary lips insure against leakage in both the static and dynamic conditions of the seal. While 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 associated machine member by its own inherent resiliency. The relief valve bleeds gas and liquid in one direction but not in the opposite direction.

REFERENCES:
patent: 3612547 (1971-10-01), Kan
patent: 4055352 (1977-10-01), Allinquant et al.
patent: 4106781 (1978-08-01), Benjamin et al.
patent: 4278261 (1981-07-01), Miura et al.
patent: 4342447 (1982-08-01), Mary

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