Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1992-10-21
1994-11-08
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277177, 277180, 277227, 277DIG6, F16J 1534
Patent
active
053620739
ABSTRACT:
An elastomeric o-ring rock bit seal is disclosed with two or more integrally bonded elastomers or phenolic type materials joined together to form the seal. The dynamic sealing face adjacent the journal bearing is fabricated from an elastomer/phenolic engineered specifically for wear resistance. The bulk of the seal adjacent the static seal retention cavity typically formed in the rotary cone is molded from an elastomer engineered specifically for precise control of the seal contact force adjacent the dynamic seal face when the seal is compressed against the dynamic face by the seal retention cavity in the cone.
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Chambers Robert
Hooper Michael F.
Johnston Randy
Portwood Gary
Pyka Jerry
Beres John L.
Cuchlinski Jr. William A.
Smith International Inc.
Upton Robert G.
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