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Class Information
Number: 175/413
Name: Boring or penetrating the earth > Bit or bit element > Plural separable cutter elements > Independently attachable
Description: Apparatus in which each cutter element can be separately attached or detached from the bit head without attaching or detaching the other elements.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7419017 |
Multi-sectional percussive drill bit assembly |
Sep. 2, 2008 |
| 7389833 |
Multi-sectional percussive drill bit assembly |
Jun. 24, 2008 |
| 7383901 |
Releasable auger tooth |
Jun. 10, 2008 |
| 7152702 |
Modular system for a back reamer and method |
Dec. 26, 2006 |
| 7096981 |
Alternating inclinations of compacts for drill bit |
Aug. 29, 2006 |
| 7096982 |
Drill shoe |
Aug. 29, 2006 |
| 7066288 |
Asymmetric compact for drill bit |
Jun. 27, 2006 |
| 7025155 |
Rock bit with channel structure for retaining cutter segments |
Apr. 11, 2006 |
| 6827159 |
Steerable horizontal subterranean drill bit having an offset drilling fluid seal |
Dec. 7, 2004 |
| 6814168 |
Steerable horizontal subterranean drill bit having elevated wear protector receptacles |
Nov. 9, 2004 |
| 6810973 |
Steerable horizontal subterranean drill bit having offset cutting tooth paths |
Nov. 2, 2004 |
| 6810972 |
Steerable horizontal subterranean drill bit having a one bolt attachment system |
Nov. 2, 2004 |
| 6810971 |
Steerable horizontal subterranean drill bit |
Nov. 2, 2004 |
| 6742608 |
Rotary mine drilling bit for making blast holes |
Jun. 1, 2004 |
| 6561291 |
Roller cone drill bit structure having improved journal angle and journal offset |
May. 13, 2003 |
| 6427791 |
Drill bit assembly for releasably retaining a drill bit cutter |
Aug. 6, 2002 |
| 6390087 |
Drill bit for directional drilling |
May. 21, 2002 |
| 6302224 |
Drag-bit drilling with multi-axial tooth inserts |
Oct. 16, 2001 |
| 6283234 |
Apparatus for mounting PCD compacts |
Sep. 4, 2001 |
| 6213231 |
Boring tool with rectangular plates |
Apr. 10, 2001 |
| 6021856 |
Bit retention system |
Feb. 8, 2000 |
| 6022176 |
Tool bit with marking member |
Feb. 8, 2000 |
| 5996714 |
Rotatable cutting bit assembly with wedge-lock retention assembly |
Dec. 7, 1999 |
| 5810103 |
Method and apparatus for mounting PCD compacts |
Sep. 22, 1998 |
| 5735360 |
Mining bit |
Apr. 7, 1998 |
| 5588497 |
Mounting drill buttons |
Dec. 31, 1996 |
| 5497843 |
Hollow auger head assembly |
Mar. 12, 1996 |
| 5498069 |
Bit holder with a detachably fixed bit bushing |
Mar. 12, 1996 |
| 5370448 |
Wedging arrangement for attaching a bit holder to the base member of a mining road working, or earth moving machine |
Dec. 6, 1994 |
| 5302005 |
Apparatus for holding a cutting bit |
Apr. 12, 1994 |
| 5174396 |
Cutter assemblies for rotary drill bits |
Dec. 29, 1992 |
| 5150636 |
Rock drill bit and method of making same |
Sep. 29, 1992 |
| 5139099 |
Excavation tool |
Aug. 18, 1992 |
| 5088797 |
Method and apparatus for holding a cutting bit |
Feb. 18, 1992 |
| 5027914 |
Pilot casing mill |
Jul. 2, 1991 |
| 5004056 |
Percussion-rotary drilling tool |
Apr. 2, 1991 |
| 4997050 |
Scabbler bits |
Mar. 5, 1991 |
| 4880278 |
Cutting tool for a mining machine |
Nov. 14, 1989 |
| 4858706 |
Diamond drill bit with hemispherically shaped diamond inserts |
Aug. 22, 1989 |
| 4838366 |
Drill bit |
Jun. 13, 1989 |
| 4782903 |
Replaceable insert stud for drilling bits |
Nov. 8, 1988 |
| 4776639 |
Tool assembly for mining machines, coal planes and coal cutting machines |
Oct. 11, 1988 |
| 4773491 |
Drill head assembly |
Sep. 27, 1988 |
| 4711143 |
Rock bit assembly method |
Dec. 8, 1987 |
| 4682660 |
Hydro-drill with circular impression |
Jul. 28, 1987 |
| 4666214 |
Earth working tool bit and block assembly |
May. 19, 1987 |
| 4660660 |
Round/flat carbide seat |
Apr. 28, 1987 |
| 4657441 |
Penetration conductor pipe drive shoe |
Apr. 14, 1987 |
| 4654947 |
Drill bit and method of renewing drill bit cutting face |
Apr. 7, 1987 |
| 4655508 |
Tool component |
Apr. 7, 1987 |
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