Valve stem assembly

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member

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Details

277 9, 292131, 29215, 123188SA, 123188SB, F16J 1532, F01L 308, B23P 1904

Patent

active

050729500

ABSTRACT:
A valve stem seal assembly comprises a valve stem seal having an external flange and a sealing lip, a washer having a tapered axial bore therein, a spring extending between the external flange of the seal and the washer, and a member engaging the seal and the washer and holding the seal, spring and washer together. The member has a lower tubular portion, an intermediate conical portion engaged by the sealing lip of the valve stem seal, and flexible fingers at the upper end of the member which are in engagement with the tapered axial bore in the washer.

REFERENCES:
patent: 1488365 (1924-03-01), Stoakes
patent: 2434456 (1948-01-01), Cook
patent: 3369819 (1968-02-01), Soo
patent: 3490428 (1970-01-01), Updike et al.
patent: 4432311 (1984-02-01), Holtzberg et al.
patent: 4826180 (1989-05-01), Deuring
patent: 4919090 (1990-04-01), Deuring et al.

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