Rotating head with elastomeric member rotating assembly

Details Rotating head with elastomeric member rotating assembly Rotating head with elastomeric member rotating assembly

1992-10-22

1994-06-21

Dang, Hoang C.

Boring or penetrating the earth

With tool drive prime mover or above-ground mechanical...

Rotary drive for a relatively advancing tool

166 84, 277 31, E21B 3303

Patent

active

053221370

ABSTRACT:
A rotating head having a bowl assembly and a rotating assembly disposed in a bowl opening formed in the bowl assembly. The rotating assembly consists of an elastomeric member having a bearing wall formed thereon bearingly engaging a portion of the bowl assembly for bearingly supporting the elastomeric member in the bowl assembly. The elastomeric member sealingly engages a portion of the bowl assembly for forming a seal between the rotating assembly and the bowl assembly.

REFERENCES:
patent: 3400938 (1968-09-01), Williams
patent: 4293047 (1981-10-01), Young
patent: 4363357 (1982-12-01), Hunter
patent: 4480843 (1984-11-01), Springer
patent: 4526243 (1985-07-01), Young
patent: 4531591 (1985-07-01), Johnston
patent: 4560001 (1985-12-01), Gonzales
patent: 4745970 (1988-05-01), Bearden et al.
patent: 5137084 (1992-08-01), Gonzales et al.

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