Valve stem seal assembly

Details Valve stem seal assembly Valve stem seal assembly

2008-01-08

2008-01-08

Huson, Gregory (Department: 3753)

Valves and valve actuation

Biased valve

Springs and spring retainers

C251S214000, C264S279000

Reexamination Certificate

active

07316386

ABSTRACT:
A valve stem seal assembly having a retainer body that includes an annular interior passageway defined by a wall is disclosed. At least one internal sprue extends between top and bottom ends of the retainer body and are formed within the wall. A channel is concentrically formed about the interior passageway on the bottom surface of the retainer body and is in fluid communication with the internal sprue. A sealing material inserted to the sprue extends from the top end of the retainer body through the internal sprue and into the channel such that a single seal body is formed.

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