FIG. 1 is an elevation view of a right side of a drill bit in accordance with the new design;
FIG. 2 is an elevation view of a left side of the drill bit;
FIG. 3 is a top plan view of the drill bit;
FIG. 4 is a top perspective view of the drill bit; and,
FIG. 5 is a bottom perspective view of the drill bit.
The broken lines in FIGS. 1-5, illustrate portions of the drill bit which form no part of the claimed design.
Patent |
Priority |
Assignee |
Title |
1815660, |
|
|
|
2379472, |
|
|
|
2710740, |
|
|
|
3893521, |
|
|
|
3991834, |
Jul 07 1975 |
REED MINING TOOLS, INC |
Sampling airhammer apparatus |
4050525, |
Sep 02 1976 |
ATLAS COPCO CANADA INC |
Down-the-hole hammer |
4085809, |
Jan 10 1977 |
|
Reconditionable drill bit assembly |
4333537, |
Nov 24 1978 |
|
Impact drilling tool having improved valving |
4530408, |
Mar 28 1983 |
ROLAND R LEONARD, INC , A CORP OF CT |
Porting system for pneumatic impact hammer |
4691779, |
Jan 17 1986 |
HALLIBURTON COMPANY, A CORP OF DELAWARE |
Hydrostatic referenced safety-circulating valve |
4765418, |
May 07 1986 |
|
Borehole drill construction |
4819739, |
Aug 31 1984 |
Dresser Industries, Inc. |
Fluid actuated rock drill hammer |
4878550, |
Jul 15 1988 |
SANDVIK ROCK TOOLS, INC |
Pilot-valve-controlled percussion drilling tool |
4919221, |
Apr 06 1989 |
Numa Tool Company |
Impact drill bit assembly and replaceable parts thereof |
5065827, |
Dec 21 1990 |
Smith International, Inc. |
Hammer bit retention tool |
5085284, |
Dec 26 1989 |
Ingersoll-Rand Co. |
Hybrid pneumatic percussion rock drill |
5301761, |
Mar 09 1993 |
Atlas Copco Secoroc LLC |
Pressure reversing valve for a fluid-actuated, percussive drilling apparatus |
5305837, |
Jul 17 1992 |
Smith International, Inc. |
Air percussion drilling assembly for directional drilling applications |
5322136, |
Jul 17 1992 |
Smith International, Inc. |
Air percussion drilling assembly |
5322139, |
Jul 28 1993 |
|
Loose crown underreamer apparatus |
5398772, |
Jul 01 1993 |
BUCYRUS INTERNATIONAL, INC ; BUCYRUS MINING EQUIPMENT, INC |
Impact hammer |
5794516, |
Aug 30 1995 |
Atlas Copco Secoroc LLC |
Piston for a self-lubricating, fluid-actuated, percussive down-the-hole drill |
5915483, |
Nov 12 1996 |
|
Down the hole drill |
5984021, |
Jan 27 1998 |
Numa Tool Company |
Porting system for back chamber of pneumatic hammer |
6125952, |
Mar 03 1998 |
Sandvik Intellectual Property Aktiebolag |
Percussive down-the-hole hammer and a drill bit therefor |
6131672, |
Feb 14 2000 |
Sandvik Intellectual Property Aktiebolag |
Percussive down-the-hole rock drilling hammer and piston therefor |
6135216, |
Apr 15 1999 |
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS AGENT |
Venting and sealing system for down-hole drills |
6170581, |
Jun 12 1998 |
TerraRoc Finland Oy |
Backhead and check valve for down-hole drills |
6237704, |
Jun 12 1998 |
TerraRoc Finland Oy |
Backhead and check valve for down-hole drills |
6263969, |
Aug 13 1998 |
Baker Hughes Incorporated |
Bypass sub |
6502650, |
Nov 15 2000 |
Sandvik Intellectual Property Aktiebolag |
Percussive down-the-hole hammer for rock drilling, and a drill bit used therein |
6637520, |
Jun 22 1998 |
AZUKO PTY LTD , ACN 068 407 821 |
Component mounting method and apparatus for a percussion tool |
6708784, |
Aug 24 1999 |
EPIROC AKTIEBOLAG |
Core barrel valve assembly |
7017682, |
Dec 17 2002 |
PRESSSOL LTD |
Drill string shutoff valve |
7117939, |
Nov 20 2002 |
TerraRoc Finland Oy |
Percussion hammer bit retainer apparatus |
7159676, |
Nov 14 2001 |
ATLAS COPCO SECOROC AB |
Fluid distributor device for down-hole-drills |
7163058, |
Jan 05 2001 |
Weatherford Norge AS |
Hydraulic jar device |
7198120, |
Mar 25 2003 |
|
Down-the-hole drill assembly |
7389833, |
Jun 10 2005 |
KEYSTONE AIR & DRILL SUPPLY CO |
Multi-sectional percussive drill bit assembly |
7467675, |
Jun 06 2006 |
EPIROC DRILLING TOOLS LLC |
Device for channeling solids and fluids within a reverse circulation drill |
7617889, |
Nov 03 2005 |
ROCKMORE INTERNATIONAL, INC |
Backhead and drill assembly with backhead |
20030102167, |
|
|
|
20040188146, |
|
|
|
20060225885, |
|
|
|
20060249309, |
|
|
|
20070039761, |
|
|
|
20080087473, |
|
|
|
20080156539, |
|
|
|
20100059284, |
|
|
|
20100089649, |
|
|
|
20100243333, |
|
|
|
D454143, |
Mar 29 2000 |
Sandvik Intellectual Property Aktiebolag |
Drill bit |
EP1910640, |
|
|
|
RE36848, |
Jun 18 1996 |
Smith International, Inc. |
Air percussion drilling assembly |
WO2007010513, |
|
|
|
WO2007077547, |
|
|
|
WO2009124051, |
|
|
|