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Class Information
Number: 175/396
Name: Boring or penetrating the earth > Bit or bit element > Axially parallel side wall with transverse cuttings retaining portion
Description: Apparatus in which the bit includes a portion laterally spaced from the axis of the bit, and substantially parallel to said axis, and another portion substantially perpendicular to said first portion, said other portion extending from said first portion toward said axis, said portions being specifically described as adapted to lift cut material from the borehole.










Patents under this class:

Patent Number Title Of Patent Date Issued
8196679 Expandable reamers for subterranean drilling and related methods Jun. 12, 2012
6739412 Pile boring tools May. 25, 2004
5931235 Cutter head, boring jig and device and process for sea bottom boring Aug. 3, 1999
5797202 Vertical hole excavating machine Aug. 25, 1998
4765418 Borehole drill construction Aug. 23, 1988
4156471 Rubble and core removal apparatus May. 29, 1979
4122905 Hand auger Oct. 31, 1978
4023629 Toggle actuated underreamer May. 17, 1977











 
 
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