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1. WO2001061142 - DRILL BIT, HARD MEMBER, AND BIT BODY

Publication Number WO/2001/061142
Publication Date 23.08.2001
International Application No. PCT/US2001/002789
International Filing Date 26.01.2001
Chapter 2 Demand Filed 20.08.2001
IPC
B23B 51/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
51Tools for drilling machines
E21B 10/54 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
54the bit being of the rotary drag type, e.g. fork-type bits
E21B 10/60 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10Drill bits
60characterised by conduits or nozzles for drilling fluids
CPC
B23B 2226/75
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
2226Materials of tools or workpieces not comprising a metal
75Stone, rock or concrete
B23B 2240/08
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
2240Details of connections of tools or workpieces
08Brazed connections
B23B 2251/202
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
2251Details of tools for drilling machines
20Number of cutting edges
202Three cutting edges
B23B 2251/50
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
2251Details of tools for drilling machines
50Drilling tools comprising cutting inserts
B23B 2251/68
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
2251Details of tools for drilling machines
68Drills with provision for suction
B23B 51/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
51Tools for drilling machines
Applicants
  • KENNAMETAL INC. [US]/[US]
  • DUNN, Curnie, A. [US]/[US]
  • HAGA, Phillip, W. [US]/[US]
  • MASSA, Ted, R. [US]/[US]
  • BISE, Douglas, E. [US]/[US]
  • CONDON, Gary, J. [US]/[US]
  • BELSHEIM, Stephen, T. [US]/[US]
  • RUTHERFORD, James, E. [US]/[US]
Inventors
  • DUNN, Curnie, A.
  • HAGA, Phillip, W.
  • MASSA, Ted, R.
  • BISE, Douglas, E.
  • CONDON, Gary, J.
  • BELSHEIM, Stephen, T.
  • RUTHERFORD, James, E.
Agents
  • WELDON, Kevin, P.
Priority Data
09/500,81315.02.2000US
09/591,64409.06.2000US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DRILL BIT, HARD MEMBER, AND BIT BODY
(FR) TREPAN, ELEMENT DUR, ET CORPS DE TREPAN
Abstract
(EN) A rotary drill bit for penetrating earth strata wherein the drill bit includes a drill bit body (22) that has an axial forward end (24). The drill bit body has a hard insert (56), which is preferably monolithic, that is affixed to the drill bit body at the axial forward end thereof. The hard insert presents at least three discrete leading cutting edges for cutting the earth strata.
(FR) L'invention concerne un trépan rotatif conçu pour pénétrer dans une strate terrestre. Le trépan comprend un corps de trépan (22) à extrémité axiale (24) avant. Ledit corps de trépan possède un insert dur (56), de préférence, monolithique, fixé audit corps de trépan au niveau de son extrémité axiale avant. L'insert dur présente au moins trois bords de coupe avant discrets permettant de couper la strate terrestre.
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