| |
 |
|
Class Information
Number: 175/202
Name: Boring or penetrating the earth > Above-ground means for relatively moving below-ground tool elements
Description: Apparatus comprising the combination of a tool having relatively movable tool elements and a means necessarily remaining outside the mouth of the bore, which is adapted to be actuated to cause relative movement between the tool elements, while the tool is located within the bore.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7140456 |
Easy hold power auger |
Nov. 28, 2006 |
| 6971457 |
Moldable fabric |
Dec. 6, 2005 |
| 6889777 |
Implement for driving posts |
May. 10, 2005 |
| 6814161 |
Stakedown assembly for a horizontal directional drill |
Nov. 9, 2004 |
| 6732816 |
Method of forming a trenchless flowline |
May. 11, 2004 |
| 6604586 |
Drilling apparatus |
Aug. 12, 2003 |
| 6594960 |
Method of folding an articulating mast |
Jul. 22, 2003 |
| 6536541 |
Boring unit for pile foundations |
Mar. 25, 2003 |
| 6457537 |
Mapping tool for tracking and/or guiding an underground boring tool |
Oct. 1, 2002 |
| 6378630 |
Locking swivel device |
Apr. 30, 2002 |
| 6364035 |
Establishing positions of locating field detectors and path mapping in underground boring tool applications |
Apr. 2, 2002 |
| 6202274 |
Arrangement for fastening a piston-cylinder arrangement and method for replacing sealings therein |
Mar. 20, 2001 |
| 5890537 |
Wiper plug launching system for cementing casing and liners |
Apr. 6, 1999 |
| 5794723 |
Drilling rig |
Aug. 18, 1998 |
| 5755289 |
Drilling rig elevator with replaceable clamping inserts and method for installation |
May. 26, 1998 |
| 5540292 |
Pneumatically actuated horizontal drilling apparatus having a plurality of drills |
Jul. 30, 1996 |
| 5125460 |
Pneumatically actuated horizontal drilling apparatus having a plurality of drills |
Jun. 30, 1992 |
| 4998981 |
Bit for drilling an undercut hole |
Mar. 12, 1991 |
| 4930585 |
Device for drilling borehole undercuts |
Jun. 5, 1990 |
| 4823870 |
Cantilever drilling structure |
Apr. 25, 1989 |
| 4800968 |
Well apparatus with tubular elevator tilt and indexing apparatus and methods of their use |
Jan. 31, 1989 |
| 4750571 |
Screen placement method and apparatus |
Jun. 14, 1988 |
| 4700789 |
Device to obtain ring-shaped cavities in the bottom of drilled holes made in any type of medium |
Oct. 20, 1987 |
| 4691788 |
Lateral hole boring method and apparatus |
Sep. 8, 1987 |
| 4595059 |
Method of providing a conductor pipe to an opening portion of a well |
Jun. 17, 1986 |
| 4589499 |
Horizontal drilling apparatus |
May. 20, 1986 |
| 4585080 |
Portable rotary earth drilling apparatus |
Apr. 29, 1986 |
| 4553612 |
Earth boring machine |
Nov. 19, 1985 |
| 4497383 |
Undercutting device for anchor holes |
Feb. 5, 1985 |
| 4494616 |
Apparatus and methods for the aeration of cesspools |
Jan. 22, 1985 |
| 4444279 |
Drilling tool |
Apr. 24, 1984 |
| 4270618 |
Earth boring apparatus |
Jun. 2, 1981 |
|
|
|
