Boring or penetrating the earth – Bit or bit element – Impact or percussion type
Reexamination Certificate
2006-07-03
2009-10-27
Bagnell, David J (Department: 3672)
Boring or penetrating the earth
Bit or bit element
Impact or percussion type
C166S177600, C175S113000
Reexamination Certificate
active
07607498
ABSTRACT:
According to one aspect of the invention there is provided a rotary-vibratory drilling apparatus. The drilling assembly is comprised of a vibratory apparatus, a rotary drive apparatus, a drill string, a first conduit and a second conduit. The first conduit communicates with the second conduit and the second conduit communicates with the drill string. The drilling assembly may further include a fluid reservoir communicating with the first conduit. Fluid may be discharged from the fluid reservoir into the first conduit, fluid may be discharged from the first conduit into the second conduit, and fluid may be discharged from the second conduit into the drill string. The first conduit may be threadedly connected to the second conduit.
REFERENCES:
patent: 3507341 (1970-04-01), Basgan
patent: 3734212 (1973-05-01), Perlewitz
patent: 3907252 (1975-09-01), Gaarder
patent: 4058163 (1977-11-01), Yandell
patent: 4253531 (1981-03-01), Boros
patent: 4260380 (1981-04-01), Nash
patent: 4553443 (1985-11-01), Rossfelder et al.
patent: 4723350 (1988-02-01), Kobayashi et al.
patent: 5027908 (1991-07-01), Roussy
patent: 5409070 (1995-04-01), Roussy
patent: 5417290 (1995-05-01), Barrow
patent: 5540295 (1996-07-01), Serrette
patent: 5549170 (1996-08-01), Barrow
patent: 5562169 (1996-10-01), Barrow
patent: 6814166 (2004-11-01), LaFreniere et al.
patent: 2002/0066558 (2002-06-01), Mullins
patent: 2002/0117334 (2002-08-01), Smith et al.
patent: 2003/0116314 (2003-06-01), Dallas
patent: 2004/0035574 (2004-02-01), Pippert
patent: 2005/0155758 (2005-07-01), Webb et al.
American Seal and Packing “Braided valve packing, mechanical packing, compression packing . . . ” last modified Jan. 13, 2003, http://www.usseal.com/packing/valve.
American Seal and Packing “Thermabraid” no date http://www.usseal.com/tbraid.html.
Bagnell David J
Berenato White & Stavish
Hutchins Cathleen R
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