| |
 |
|
Class Information
Number: 175/394
Name: Boring or penetrating the earth > Bit or bit element > With helical-conveying portion
Description: Apparatus in which the bit is provide with a screw shaped surface extending axially thereof for conveying cuttings away from the end of the bit, said screw shaped surface extending through a convolution of at least 180°.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7395880 |
Mortar removal drill bit system |
Jul. 8, 2008 |
| 7357199 |
Bit for excavation and compaction equipment for erecting piles, and excavation equipment provided with said bit |
Apr. 15, 2008 |
| 7353892 |
Guide frame for an earth drilling apparatus |
Apr. 8, 2008 |
| 7258178 |
Auger planter |
Aug. 21, 2007 |
| 7210543 |
Reversible power takeoff driven post hole digger |
May. 1, 2007 |
| 7192094 |
Auger flight support system |
Mar. 20, 2007 |
| 7163363 |
Perforating drill |
Jan. 16, 2007 |
| 7140456 |
Easy hold power auger |
Nov. 28, 2006 |
| 7128174 |
Drilling and anchoring device for diverse applications |
Oct. 31, 2006 |
| 7117960 |
Bits for use in drilling with casting and method of making the same |
Oct. 10, 2006 |
| 7114584 |
Hollow auger head assembly |
Oct. 3, 2006 |
| 7059431 |
Self-penetrating drilling method and thrust-generating tool for implementing same |
Jun. 13, 2006 |
| 7001120 |
Drilling tool |
Feb. 21, 2006 |
| 6994494 |
Device for producing bored piles |
Feb. 7, 2006 |
| 6959775 |
Drill bit |
Nov. 1, 2005 |
| 6955227 |
Auger for mixing and burrowing |
Oct. 18, 2005 |
| 6955234 |
Auger bit |
Oct. 18, 2005 |
| 6951258 |
Hollow auger head assembly |
Oct. 4, 2005 |
| 6945339 |
Core drill |
Sep. 20, 2005 |
| 6910838 |
Rock drill |
Jun. 28, 2005 |
| 6868924 |
Rock drill |
Mar. 22, 2005 |
| 6854537 |
Portable placer exploration and sampling apparatus |
Feb. 15, 2005 |
| 6824331 |
Screw form anchor device |
Nov. 30, 2004 |
| 6817428 |
Drill bit |
Nov. 16, 2004 |
| 6742610 |
Rock drill |
Jun. 1, 2004 |
| 6739411 |
Hollow auger head assembly |
May. 25, 2004 |
| 6681871 |
Auger tool for boring |
Jan. 27, 2004 |
| 6675917 |
Twist drill bit for rock drilling |
Jan. 13, 2004 |
| 6675918 |
Garden earth auger |
Jan. 13, 2004 |
| 6655479 |
Twist-drill bit |
Dec. 2, 2003 |
| 6641332 |
Foundation support and process for structures |
Nov. 4, 2003 |
| 6601659 |
Twist drill |
Aug. 5, 2003 |
| 6571890 |
Twist drill |
Jun. 3, 2003 |
| 6550555 |
Drill bit for drilling rock |
Apr. 22, 2003 |
| 6502649 |
Ice auger cutting head |
Jan. 7, 2003 |
| 6471445 |
Rotary displacement piling equipment |
Oct. 29, 2002 |
| 6450273 |
Drilling tool including drilling head with multiple cutting members separated drilled material grooves |
Sep. 17, 2002 |
| 6450272 |
Rock drill |
Sep. 17, 2002 |
| 6427789 |
Rock drilling tool with improved conveying |
Aug. 6, 2002 |
| 6405813 |
Rock drill for drilling bores in reinforced concrete |
Jun. 18, 2002 |
| 6397959 |
Mill |
Jun. 4, 2002 |
| 6349779 |
Profiled element for rotary drilling equipment and drill rod comprising at least one profiled portion |
Feb. 26, 2002 |
| 6302223 |
Rotary drag bit with enhanced hydraulic and stabilization characteristics |
Oct. 16, 2001 |
| 6296068 |
Planting system |
Oct. 2, 2001 |
| 6250857 |
Drill |
Jun. 26, 2001 |
| 6223838 |
Auger system |
May. 1, 2001 |
| 6213231 |
Boring tool with rectangular plates |
Apr. 10, 2001 |
| 6213232 |
Drilling tool helical shank formed from a polygonal profile bar |
Apr. 10, 2001 |
| 6161631 |
Environmentally friendly horizontal boring system |
Dec. 19, 2000 |
| 6129162 |
Rock drill |
Oct. 10, 2000 |
|
|
|
