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Class Information
Number: 175/315
Name: Boring or penetrating the earth > Combined
Description: Apparatus claimed in combination with features other than means to transmit motion to the formation penetrating means, or means to remove cuttings from the bore, or means to conduct fluid to the earth penetrating means and not provided for in any of the preceding subclasses.










Patents under this class:

Patent Number Title Of Patent Date Issued
8550187 Drilling apparatus and method for working the ground Oct. 8, 2013
8245792 Drill bit with weight and torque sensors and method of making a drill bit Aug. 21, 2012
8240400 Noise-dampening shield structure for rock drilling apparatus Aug. 14, 2012
8113298 Wireline communication system for deep wells Feb. 14, 2012
6374924 Downhole drilling apparatus Apr. 23, 2002
5342520 Filter for a rockdrill Aug. 30, 1994
5174394 Apparatus for cleaning layers of earth Dec. 29, 1992
5067569 Auger and sweeper assembly Nov. 26, 1991
5067570 Auger and retaining shell assembly Nov. 26, 1991
4924951 Manhole cutter May. 15, 1990
4924954 Bit breakout system May. 15, 1990
4654948 Method for renewing the cutting face of a diamond drill bit Apr. 7, 1987
4585080 Portable rotary earth drilling apparatus Apr. 29, 1986
4497384 Reamer disassembly Feb. 5, 1985
4495840 Bit breaker Jan. 29, 1985
4475604 Mobile machine for subterranean installation of piping and the like Oct. 9, 1984
4406334 Drilling tool Sep. 27, 1983
4368789 Drilling apparatus Jan. 18, 1983
4352399 Bit breaker and handle Oct. 5, 1982
4337980 Wedge arrangements and related means for mounting means, base members, and bits, and combinations thereof, for mining, road working, or earth moving machinery Jul. 6, 1982
4223749 Rotary earth boring drill bit with centrifugal foreign particle barrier device Sep. 23, 1980
4206821 Roof drill and drill rod system Jun. 10, 1980
4156470 Rotary earth boring drill bit with centrifugal foreign particle barrier device May. 29, 1979
4149604 Mining equipment Apr. 17, 1979
4070772 Ground excavating apparatus Jan. 31, 1978
4061389 Combination wire line releasable overshot and pull tool Dec. 6, 1977
4055051 Unitary drill bit and roof bolt Oct. 25, 1977











 
 
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