Dual dynamic rotary seal

Details Dual dynamic rotary seal Dual dynamic rotary seal

E - Fixed Constructions

21

B

E21B 10/22 (2006.01) F16J 15/16 (2006.01)

Patent

CA 2396692

The invention is a roller cone drill bit including a seal adapted to seal between the bit body and a roller cone on the drill bit. The seal includes a seal body formed from a material that is adapted to energize the seal after compression of the seal. A first dynamic seal surface formed on the seal body and is adapted to seal against the bit body. A second dynamic seal surface is formed the seal body and is adapted to seal against the roller cone. The first and second dynamic seal surfaces are formed from a material adapted to withstand relative motion between the first dynamic seal surface and the bit body and between the second dynamic seal surface and the roller cone.

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