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Class Information
Number: 175/89
Name: Boring or penetrating the earth > Tool element or continuously driven flexible or articulated endless member
Description: Apparatus in which a cutting means is carried through recurring cycles on a driven member forming a closed circuit, said member composed of a rope, cable, chain, hinged elements, or like structure.










Sub-classes under this class:

Class Number Class Name Patents
175/90 Flexible or articulated member carried on support swingable or laterally movable relative to bore axis 12


Patents under this class:

Patent Number Title Of Patent Date Issued
8408288 System for conducting jointed pipe and coiled tubing operations Apr. 2, 2013
7753141 Coiled tubing drilling system Jul. 13, 2010
RE41141 Combined drilling apparatus and method Feb. 23, 2010
7628229 Mobile drilling rig with replaceable dolly Dec. 8, 2009
6799647 Earth drilling and boring system Oct. 5, 2004
6530439 Flexible hose with thrusters for horizontal well drilling Mar. 11, 2003
6227313 Anti-torque tool May. 8, 2001
6158516 Combined drilling apparatus and method Dec. 12, 2000
4890681 Method and apparatus for rotary power driven swivel drilling Jan. 2, 1990
4394882 Continuous chain bit with downhole cycling capability Jul. 26, 1983
4339153 Apparatus for extending and retracting the cutter bars of a boring type mining machine Jul. 13, 1982
4167293 Sprocket tightener Sep. 11, 1979
3979843 Trenching chain with scoop members Sep. 14, 1976
3968995 Continuous mining machine with a chain drive for the cutting head Jul. 13, 1976











 
 
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