Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1988-03-31
1989-04-18
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 92, 277 962, 277236, F16J 1538
Patent
active
048220574
ABSTRACT:
A metal-to-metal Belleville seal for a rotary cone rock bit consists of pre-lapped metal sealing surfaces formed on opposing seal rings prior to assembly of the seal rings into seal cavities formed between the rotary cones and their respective journal bearings. A first seal ring is fabricated from a softer metallic material than its opposing second metallic ring and the second ring has more seal surface area than the first ring to accommodate for cone wobble or eccentricities that may occur during operation of the bit in a borehole.
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Anderson George F.
Chia Weng-Kwen R.
Smith International Inc.
Upton Robert G.
Ward Robert S.
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