Sealing assembly for relatively movable members

Details Sealing assembly for relatively movable members Sealing assembly for relatively movable members

1988-08-03

1991-04-23

Shoap, Allan N.

Bearings

Rotary bearing

Roller drill bit

175372, 277 92, 277105, 277112, 277125, 384481, 384483, F16C 3376, F16J 1526, F16J 1528, F16J 1538

Patent

active

050095196

ABSTRACT:
A sealing member for relatively movable, e.g., rotating or reciprocating, members comprises a pair of annular rings each with a radially extending wall and an axially extending wall defining an annular seal gland. An elastic spring member compression-loaded in the seal biases the exterior surfaces against the bearing surfaces. The ring members are preferably of TEFLON, or like polytetrafluoroethylene plastic, RYTON, polyphenylene sulfide, or a soft elastic metal capable of being compressed by the spring member against the walls of the surface being sealed. The spring is a rubber or elastomeric O-ring or the like. Other spring members, such as a Belleville spring assembly or the like, may be used. This seal is characterized by its operation at elevated temperatures, i.e., up, to 1000.degree. F.

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