Hermetically welded belleville seal for rocks bits

Details Hermetically welded belleville seal for rocks bits Hermetically welded belleville seal for rocks bits

1984-07-05

1985-12-24

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1534, F16C 1949

Patent

active

045601755

ABSTRACT:
This invention relates to a belleville seal for a sealed bearing rotary cone rock bit. The inner static ring portion of the annular belleville seal is metal and is interference fitted over the base of a journal bearing. The separation joint formed between the inner diameter of the static ring portion of the belleville seal and the outside diameter of the journal bearing is circumferentially welded using a high-energy beam source to form a hermetically sealed metallurgical bond therebetween.

REFERENCES:
patent: 3075781 (1963-01-01), Atkinson et al.
patent: 3489421 (1970-01-01), Neilson
patent: 3680873 (1972-08-01), Garner

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