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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
8499855 Devices and methods for horizontal directional drilling with a boring tool library Aug. 6, 2013
8047303 Drilling rig drawworks installation Nov. 1, 2011
7931077 Top drive drilling apparatus Apr. 26, 2011
7743853 Top drive drilling apparatus Jun. 29, 2010
7677337 Construction device, in particular drilling device Mar. 16, 2010
7628229 Mobile drilling rig with replaceable dolly Dec. 8, 2009
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











 
 
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