Metal seal with impact-absorbing ring

Details Metal seal with impact-absorbing ring Metal seal with impact-absorbing ring

2007-03-13

2007-03-13

Dang, Hoang (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

C277S352000, C384S094000

Reexamination Certificate

active

10868511

ABSTRACT:
Disclosed is a seal assembly for dynamically sealing between rotatable members, such as employed to seal the rolling cone of a rock bit. One preferred assembly includes an energizer, first and second seal rings, and a cushioning ring having an L-shaped cross-section disposed about portions of one of the seal rings to seal and absorb impact loads and thereby protect the more-rigid seal rings.

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