Self-lapping high speed seal with wear-in lip

Details Self-lapping high speed seal with wear-in lip Self-lapping high speed seal with wear-in lip

1980-10-14

1982-08-17

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 84, 277 92, 277 95, 175371, 308 82, F16J 1534, F16C 3378, E21B 1008

Patent

active

043446299

ABSTRACT:
The high speed seal is an integral metal-to-metal type seal that, in its initial application, acts as a regular resilient O-ring. As the seal begins to operate, a protruding circular resilient lip adjacent the metal sealing ring provides an initial seal and, as the seal continues to function over a length of time, the resilient portion 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: 3862762 (1975-01-01), Millsap
patent: 3944306 (1976-03-01), Neilson

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