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Class Information
Number: 175/55
Name: Boring or penetrating the earth > Tool actuation by reaction of rotating eccentric mass
Description: Process or apparatus comprising a step or means for driving the boring tool which includes a mass or weight mounted to travel in an orbital path with the center of gravity of the mass or weight being spaced from the center of the path in which it travels, the reaction of said mass or weight on its mounting being transmitted to the boring tool through the means mounting the mass or weight for rotation.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8550183 Drilling method Oct. 8, 2013
8453765 Apparatus for directional control of a drilling tool Jun. 4, 2013
8356677 Methods of preloading a sonic drill head and methods of drilling using the same Jan. 22, 2013
8347984 Variable force/variable frequency sonic drill head Jan. 8, 2013
8070352 Vibration exciter Dec. 6, 2011
8006782 Sonic drill head Aug. 30, 2011
7900716 Vibratory unit for drilling systems Mar. 8, 2011
7810582 Counterbalance enabled power generator for horizontal directional drilling systems Oct. 12, 2010
7757783 Vibrational apparatus Jul. 20, 2010
7708088 Vibrating downhole tool May. 4, 2010
7191852 Energy accelerator Mar. 20, 2007
6948574 Ultrasonic annular core bit Sep. 27, 2005
6863136 Smart-ultrasonic/sonic driller/corer Mar. 8, 2005
6808029 Drill rig assembly Oct. 26, 2004
6739410 Sonic drill head May. 25, 2004
6582158 Device and method for transferring vibrating movement to rigid pipe with pipe clamp for vibrator rammer block Jun. 24, 2003
6543966 Drive system for inserting and extracting elongate members into the earth Apr. 8, 2003
6431795 Systems and methods for inserting wick drain material Aug. 13, 2002
6386295 Vibratory driver for pipe piling May. 14, 2002
6302222 Device for the transmission and distribution of the vibration and stress exerted on objects by a vibrator to drive them into the ground Oct. 16, 2001
6129159 Vibratory drill head apparatus Oct. 10, 2000
6116354 Rotary steerable system for use in drilling deviated wells Sep. 12, 2000
6073704 Machine support including means for angular control of a supported device Jun. 13, 2000
6039508 Apparatus for inserting elongate members into the earth Mar. 21, 2000
5860482 Multiple force hole forming device Jan. 19, 1999
5823272 Vibrating hammer, more particularly for driving sheet piles into the ground Oct. 20, 1998
5771985 Earth penetrating apparatus for obtaining sediment samples, driving instrument probes, pilings, or sheet pilings Jun. 30, 1998
5685615 Eccentrically driven percussive tools for treating materials Nov. 11, 1997
5549170 Sonic drilling method and apparatus Aug. 27, 1996
5456325 Method and apparatus for driving a probe into the earth Oct. 10, 1995
5435399 Soil sampler Jul. 25, 1995
5409070 Coupling for rotary-vibratory drills Apr. 25, 1995
5316090 Attitude control device and drilling-direction control device May. 31, 1994
5307885 Attitude and drilling-direction control device May. 3, 1994
5058688 Convertible vibratory or rotary core drill apparatus Oct. 22, 1991
5050320 Multi-shaft kneading auger system Sep. 24, 1991
5031707 Apparatus for making holes in soil Jul. 16, 1991
5027908 Bearing apparatus and method for preloading bearings for rotary-vibratory drills Jul. 2, 1991
5004055 Vibratory core drill apparatus for the recovery of soil or sediment core samples Apr. 2, 1991
4848486 Method and apparatus for transversely boring the earthen formation surrounding a well to increase the yield thereof Jul. 18, 1989
4828052 Ultrasonic drilling apparatus May. 9, 1989
4693325 Sonic drill employing orbiting crank mechanism Sep. 15, 1987
4693326 Cycloidal earth cutting system with rocker-type nutating action Sep. 15, 1987
4667750 Vibratory earth penetrator with synchronized air lance control May. 26, 1987
4662459 Drilling system and method employing torsional sonic vibration for lubrication of journal type bit bearings May. 5, 1987
4653594 Vibration generating apparatus Mar. 31, 1987
4624605 Shield tunneling apparatus Nov. 25, 1986
4615400 Sonic drilling system employing spherical drill bit Oct. 7, 1986
4603748 High frequency vibratory systems for earth boring Aug. 5, 1986
4571122 Pipe laying apparatus Feb. 18, 1986

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