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Class Information
Number: 175/377
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Spiral rib or tooth row
Description: Apparatus in which the rolling cutter element is provided with a portion which has a cutting edge or edges arranged along a line or series of lines extending around the circumference of the element and simultaneously extending in a direction along the axis of the cutter element (e.g., helical).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7059431 |
Self-penetrating drilling method and thrust-generating tool for implementing same |
Jun. 13, 2006 |
| 7013999 |
Wedge tooth cutter element for drill bit |
Mar. 21, 2006 |
| 6997273 |
Blunt faced cutter element and enhanced drill bit and cutting structure |
Feb. 14, 2006 |
| 6595304 |
Roller bit parallel inlayed compacts |
Jul. 22, 2003 |
| 6394198 |
Frictional vibration damper for downhole tools |
May. 28, 2002 |
| 6167917 |
Drill pipe |
Jan. 2, 2001 |
| 5547033 |
Rotary cone drill bit and method for enhanced lifting of fluids and cuttings |
Aug. 20, 1996 |
| 5456328 |
Drill bit with improved rolling cutter tooth pattern |
Oct. 10, 1995 |
| 5429201 |
Drill bit with improved rolling cutter tooth pattern |
Jul. 4, 1995 |
| 5224560 |
Modular drill bit |
Jul. 6, 1993 |
| 4848491 |
Rotary drill bits |
Jul. 18, 1989 |
| 4717290 |
Milling tool |
Jan. 5, 1988 |
| 4552232 |
Drill-bit with full offset cutter bodies |
Nov. 12, 1985 |
| 4408671 |
Roller cone drill bit |
Oct. 11, 1983 |
| 4393949 |
Rock boring apparatus |
Jul. 19, 1983 |
| 4320808 |
Rotary drill bit |
Mar. 23, 1982 |
| 4304440 |
Roller cutter |
Dec. 8, 1981 |
| 4194791 |
Grooved earthworking bit and method of enhancing the life thereof |
Mar. 25, 1980 |
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