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Class Information
Number: 175/402
Name: Boring or penetrating the earth > Bit or bit element > Casing shoe type
Description: Apparatus in which the bit is of the type commonly called "casing shoe", and which is adapted to be positioned on the end of a tubular conduit to facilitate the entry of such conduit into a preformed bore by reaming or cutting any projections on the bore wall by means of cutting edges provided on said shoe.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7216727 |
Drilling bit for drilling while running casing |
May. 15, 2007 |
| 7131506 |
Flightless rock auger for use with pressure drills with quick attachment and method of use |
Nov. 7, 2006 |
| 7100713 |
Expandable apparatus for drift and reaming borehole |
Sep. 5, 2006 |
| 7066253 |
Casing shoe |
Jun. 27, 2006 |
| 6983811 |
Reamer shoe |
Jan. 10, 2006 |
| 6945339 |
Core drill |
Sep. 20, 2005 |
| 6702045 |
Drilling apparatus |
Mar. 9, 2004 |
| 6675919 |
Tubular piling apparatus and method |
Jan. 13, 2004 |
| 6659173 |
Downhole tool |
Dec. 9, 2003 |
| 6619413 |
Flightless rock auger for use with pressure drills with quick attachment and method of use |
Sep. 16, 2003 |
| 6494276 |
Rock auger with pilot drill |
Dec. 17, 2002 |
| 6443247 |
Casing drilling shoe |
Sep. 3, 2002 |
| 6401820 |
Downhole tool |
Jun. 11, 2002 |
| 6223838 |
Auger system |
May. 1, 2001 |
| 6129163 |
Flightless rock auger with quick attachment and method of use |
Oct. 10, 2000 |
| 6062326 |
Casing shoe with cutting means |
May. 16, 2000 |
| 5127482 |
Expandable milling head for gas well drilling |
Jul. 7, 1992 |
| 5050679 |
Method of sealing contaminated wells |
Sep. 24, 1991 |
| 4979848 |
Drilling device |
Dec. 25, 1990 |
| 4932129 |
Casing punch for wells |
Jun. 12, 1990 |
| 4924951 |
Manhole cutter |
May. 15, 1990 |
| 4715455 |
Drill shoe |
Dec. 29, 1987 |
| 4657441 |
Penetration conductor pipe drive shoe |
Apr. 14, 1987 |
| 4534773 |
Abrasive product and method for manufacturing |
Aug. 13, 1985 |
| 4362217 |
Downhole shearers |
Dec. 7, 1982 |
| 4276942 |
Deviation device |
Jul. 7, 1981 |
| 4266621 |
Well casing window mill |
May. 12, 1981 |
| 4189015 |
Drill bits for obtaining core samples |
Feb. 19, 1980 |
| 3968847 |
Wellpoint jetting head |
Jul. 13, 1976 |
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