High-speed seal

Details High-speed seal High-speed seal

1982-10-18

1983-07-19

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1534, F16C 3378, E21B 1008

Patent

active

043940200

ABSTRACT:
The high-speed seal is a two-part metal-to-metal type seal that, in its initial application, acts as a conventional resilient O-ring. As the seal begins to operate, a separate O-ring, retained within a seal gland channel formed in the body of a primary metal seal, provides an initial seal. As the seal continues to function over a length of time, the separate O-ring retained within the seal gland in the ring wears away and metal-to-metal contact begins to be made. Thus, the seal gradually converts from a standard O-ring type of seal to a lapped-in metal-to-metal seal during operation of the bit.

REFERENCES:
patent: 2599034 (1952-06-01), Wilkinson
patent: 2881015 (1959-04-01), Wahl
patent: 3022081 (1962-02-01), Kosatka
patent: 3381968 (1968-05-01), Neilson
patent: 3489421 (1970-01-01), Neilson
patent: 3862702 (1975-01-01), Millsap
patent: 3944306 (1976-03-01), Neilson
patent: 4253674 (1981-03-01), Fee
patent: 4337951 (1982-07-01), Perego
patent: 4344629 (1982-08-01), Oelke

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