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1. WO2000040832 - ROTATABLE CUTTING BIT ASSEMBLY WITH CUTTING INSERTS

Publication Number WO/2000/040832
Publication Date 13.07.2000
International Application No. PCT/US1999/029196
International Filing Date 09.12.1999
Chapter 2 Demand Filed 19.06.2000
IPC
E21B 10/54 2006.01
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 10/56 2006.01
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
56Button-type inserts
CPC
E21B 10/55
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
54the bit being of the rotary drag type, e.g. fork-type bits
55with preformed cutting elements ; with blades having preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
E21B 10/5673
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
56Button type inserts
567with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
5673having a non planar or non circular cutting face
Applicants
  • KENNAMETAL INC. [US/US]; P.O. Box 231 Latrobe, PA 15650-0231, US
Inventors
  • MASSA, Ted, R.; US
  • SIDDLE, David, R.; US
Agents
  • PRIZZI, John, J. ; Kennametal Inc. P.O. Box 231 Latrobe, PA 15650-0231, US
Priority Data
09/224,39731.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ROTATABLE CUTTING BIT ASSEMBLY WITH CUTTING INSERTS
(FR) ENSEMBLE TREPAN TRANCHANT ROTATIF AVEC ELEMENTS RAPPORTES
Abstract
(EN)
A rotatable cutting bit for penetrating an earth formation wherein the rotatable cutting bit (590) includes an elongate bit body (592) having a forward end (594) and a rearward end (596). The bit body (592) further defines a peripheral surface. The bit body (592) has a first cutting insert (640) affixed thereto at the axially forward end thereof. The first cutting insert has a first leading cutting edge (662) and a first side clearance cutting edge (664). The first cutting insert (640) is attached to the bit body (592) so that the first side clearance cutting edge (664) radially extends past the peripheral surface of the bit body (592) so as to engage the earth formation.
(FR)
Ce trépan tranchant rotatif (590), destiné à pénétrer une formation terrestre, comprend un corps oblong (592) présentant des extrémités avant (594) et arrière (596). Le corps du trépan (592) définit en outre une surface périphérique, et il présente un premier élément tranchant (640), rapporté et fixé sur le corps, de manière axiale, au niveau de l'extrémité avant de ce corps. Le premier élément tranchant, rapporté, comprend un bord d'attaque coupant (662) ainsi qu'un premier bord coupant, d'évacuation latérale (664) Le premier élément rapporté tranchant (649) est fixé sur le corps du trépan (592) de façon que le premier bord coupant, d'évacuation latérale (664), s'étende radialement au-delà de la surface périphérique du corps du trépan (592), de manière à pénétrer la formation terrestre.
Also published as
ZA200104439
Latest bibliographic data on file with the International Bureau