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Class Information
Number: 175/377
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Spiral rib or tooth row
Description: Apparatus in which the rolling cutter element is provided with a portion which has a cutting edge or edges arranged along a line or series of lines extending around the circumference of the element and simultaneously extending in a direction along the axis of the cutter element (e.g., helical).










Patents under this class:

Patent Number Title Of Patent Date Issued
8544568 Shoulder durability enhancement for a PDC drill bit using secondary and tertiary cutting elements Oct. 1, 2013
8196683 Impregnated rotary bit Jun. 12, 2012
7059431 Self-penetrating drilling method and thrust-generating tool for implementing same Jun. 13, 2006
7013999 Wedge tooth cutter element for drill bit Mar. 21, 2006
6997273 Blunt faced cutter element and enhanced drill bit and cutting structure Feb. 14, 2006
6595304 Roller bit parallel inlayed compacts Jul. 22, 2003
6394198 Frictional vibration damper for downhole tools May. 28, 2002
6167917 Drill pipe Jan. 2, 2001
5547033 Rotary cone drill bit and method for enhanced lifting of fluids and cuttings Aug. 20, 1996
5456328 Drill bit with improved rolling cutter tooth pattern Oct. 10, 1995
5429201 Drill bit with improved rolling cutter tooth pattern Jul. 4, 1995
5224560 Modular drill bit Jul. 6, 1993
4848491 Rotary drill bits Jul. 18, 1989
4717290 Milling tool Jan. 5, 1988
4552232 Drill-bit with full offset cutter bodies Nov. 12, 1985
4408671 Roller cone drill bit Oct. 11, 1983
4393949 Rock boring apparatus Jul. 19, 1983
4320808 Rotary drill bit Mar. 23, 1982
4304440 Roller cutter Dec. 8, 1981
4194791 Grooved earthworking bit and method of enhancing the life thereof Mar. 25, 1980











 
 
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