Seal assembly

Details Seal assembly Seal assembly

2011-08-30

2011-08-30

Safavi, Michael (Department: 3637)

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

C277S589000, C277S905000

Reissue Patent

active

RE042654

ABSTRACT:
A seal for acceptance in an annular gland in a piston comprises an annular primary sealing element, an annular secondary sealing element disposed radially inwardly of the primary sealing element, and a pair of axially spaced back up rings disposed in axially spaced relation on opposite sides of the primary sealing element and having radially inner portions, respectively, engaged with the primary sealing element so as to lock the backup rings in the gland of the piston.

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