Boring or penetrating the earth – Bit or bit element – Forked rotary nontracking
Reexamination Certificate
2007-06-12
2007-06-12
Thompson, Kenneth (Department: 3672)
Boring or penetrating the earth
Bit or bit element
Forked rotary nontracking
C175S398000, C175S427000, C408S228000
Reexamination Certificate
active
10863789
ABSTRACT:
A drill bit has a pair of cutting teeth with cutting elements extending from a cutting end portion of the drill bit. Each cutting tooth extends radially, outwardly parallel to a longitudinal axis of the drill steel. The cutting teeth are juxtaposed with one another on the longitudinal axis. Each cutting tooth includes a plurality of raised cutting elements connected to a plurality of lowered edge portions. The cutting elements produce concentric circular channels in the working surface of a rock formation, as the drill bit rotates during the cutting operation. The drill bit also includes a pocket for accumulating and removing dislodged material during the cutting operation.
REFERENCES:
patent: 1809351 (1931-06-01), Oliver
patent: 1923488 (1933-08-01), Howard et al.
patent: 1940996 (1933-12-01), Carr
patent: 2032328 (1936-02-01), Reedy
patent: 2358052 (1944-09-01), Brown
patent: 2461305 (1949-02-01), Winn
patent: 2648524 (1953-08-01), Dionisotti
patent: D178899 (1956-10-01), Olsen
patent: 2815933 (1957-12-01), Dionisotti
patent: D183237 (1958-07-01), Aven, Jr.
patent: 3140748 (1964-07-01), Engle et al.
patent: 3179190 (1965-04-01), Blasi
patent: 4098362 (1978-07-01), Bonnice
patent: 4211294 (1980-07-01), Multakh
patent: 4259090 (1981-03-01), Bovenkerk
patent: 4294319 (1981-10-01), Guergen
patent: 4313506 (1982-02-01), O'Connell
patent: 4440247 (1984-04-01), Sartor
patent: 4471845 (1984-09-01), Jurgens
patent: 4499958 (1985-02-01), Radtke et al.
patent: 4534773 (1985-08-01), Phaal et al.
patent: 4729441 (1988-03-01), Peetz et al.
patent: 4733735 (1988-03-01), Barr et al.
patent: 4771834 (1988-09-01), Treitz
patent: D317010 (1991-05-01), Knemeyer
patent: 5180022 (1993-01-01), Brady
patent: 5184689 (1993-02-01), Sheirer et al.
patent: D340248 (1993-10-01), Brady
patent: 5303787 (1994-04-01), Brady
patent: D351174 (1994-10-01), Brady
patent: 5363932 (1994-11-01), Azar
patent: 5433281 (1995-07-01), Black
patent: 5467837 (1995-11-01), Miller et al.
patent: 5535839 (1996-07-01), Brady
patent: 5580196 (1996-12-01), Thompson
patent: 5630478 (1997-05-01), Schimke
patent: 5743346 (1998-04-01), Flood et al.
patent: 5875858 (1999-03-01), Brady
patent: 5996714 (1999-12-01), Massa et al.
patent: 6021857 (2000-02-01), Birk et al.
patent: 6029544 (2000-02-01), Katayama
patent: D424579 (2000-05-01), Brady
patent: 6092612 (2000-07-01), Brady
patent: D430578 (2000-09-01), Brady
patent: 6161635 (2000-12-01), Brady
patent: 6260638 (2001-07-01), Massa et al.
patent: 6290007 (2001-09-01), Beuershausen et al.
patent: 6374932 (2002-04-01), Brady
patent: 6427782 (2002-08-01), Brady
patent: 6585064 (2003-07-01), Griffin et al.
patent: 6588520 (2003-07-01), Hauptmann
patent: 2001/0013428 (2001-08-01), Brady
patent: WO 8900473 (1989-01-01), None
Abrasive Technology Everlast® Brand PCD Drill Product Profile downloaded from www.abrasive-tech.com on Aug. 3, 2003.
Diamatec, Inc. Surface-Set Diamond Core Bits Product Profile downloaded from www.diamatec.com on Aug. 3, 2003.
“Diamond Bits & Tooling for World Markets”, GeoDrilling International, Aug. 2002, p. 32.
“Diamond, Diamond-like Carbon/CBN Films and Coated Products: Technology Analysis”, Global Information, Inc., Aug. 2002 (outline only).
GeoGem Manufacturing Processes Description downloaded from www.geogem.co.uk on Aug. 3, 2003.
Glowka, David A., “Development of Advanced Synthetic-Diamond Drill Bits for Hard-Rock Drilling”, U.S. Department of Energy, Apr. 25, 1997.
Radtke, Bob; Smith, Melody; Riedel, Richard; Daniels, Bill; and Gwilliam, William, “New High Strength and Faster Drilling TSP Diamond Cutters”, 1999 Oil and Gas Conference-Technology Options for Producer's Survival, U.S. Department of Energy, Jun. 28-30, 1999.
Wise, Jack L. and Raymond, David, “Hard-Rock Drill Bit Technology”, Sandia National Laboratories, Jul. 17, 2003.
Price & Adams
Thompson Kenneth
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