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Class Information
Number: 175/56
Name: Boring or penetrating the earth > Natural vibration characteristic of an element of boring means related (1) to natural vibration characteristic of another element, or (2) to frequency of an imposed motion
Description: Process or apparatus comprising a step or means relating to an element or part of the boring means which has a property affecting its natural period of vibration when it is impacted or elastically deformed which bears a relationship to (1) a similar property of another element or part of the boring means or (2) the frequency or period of vibration of the force causing the impacts or deformations of the first element.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8688382 Detection of downhole vibrations using surface data from drilling rigs Apr. 1, 2014
8678107 System and method for drilling hammer communication, formation evaluation and drilling optimization Mar. 25, 2014
8550183 Drilling method Oct. 8, 2013
8528664 Downhole mechanism Sep. 10, 2013
8453761 Resonance enhanced drilling: method and apparatus Jun. 4, 2013
8365840 Method and device for controlling at least one drilling parameter for rock drilling Feb. 5, 2013
8353368 Resonance enhanced drilling: method and apparatus Jan. 15, 2013
8342263 Vibratory drill head mounting and rotation coupling system Jan. 1, 2013
8336643 Vibratory drilling apparatus Dec. 25, 2012
8262322 Pile with integral geothermal conduit loop retaining means Sep. 11, 2012
8210281 Method and system for installing geothermal transfer apparatuses with a sonic drill Jul. 3, 2012
8201641 Vibrating downhole tool and methods Jun. 19, 2012
8181719 Flow pulsing device for a drilling motor May. 22, 2012
8162078 Vibrating downhole tool Apr. 24, 2012
8136611 Method and system for installing micropiles with a sonic drill Mar. 20, 2012
8132631 Method of geothermal loop installation Mar. 13, 2012
8118115 Method and system for installing geothermal heat exchangers, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit Feb. 21, 2012
8091652 Method and device for controlling at least one drilling parameter for rock drilling Jan. 10, 2012
8074740 Method and system for installing cast-in-place concrete piles with a sonic drill and a removable or retrievable drill bit Dec. 13, 2011
8066334 Tool for cutting coke and other hard materials in drums Nov. 29, 2011
8066085 Stochastic bit noise control Nov. 29, 2011
8002502 Method and system for installing cast-in-place concrete piles with a sonic drill Aug. 23, 2011
7984771 Methods and apparatus for attenuating drillstring vibrations Jul. 26, 2011
7900716 Vibratory unit for drilling systems Mar. 8, 2011
7891440 Method and system for installing geothermal transfer apparatuses with a sonic drill and a removable or retrievable drill bit Feb. 22, 2011
7874379 Damping device for an output shaft in a gearbox Jan. 25, 2011
7828082 Methods and apparatus for attenuating drillstring vibrations Nov. 9, 2010
7806204 Sonic drill rod with external surface features Oct. 5, 2010
7779932 Drill-string shock absorbers Aug. 24, 2010
7762354 Peizoelectric generator particularly for use with wellbore drilling equipment Jul. 27, 2010
7757783 Vibrational apparatus Jul. 20, 2010
7748474 Active vibration control for subterranean drilling operations Jul. 6, 2010
7730970 Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting levels Jun. 8, 2010
7708088 Vibrating downhole tool May. 4, 2010
7681664 Internally dampened percussion rock drill Mar. 23, 2010
7647988 Method and system for installing geothermal transfer apparatuses with a sonic drill Jan. 19, 2010
7617886 Fluid-actuated hammer bit Nov. 17, 2009
7591327 Drilling at a resonant frequency Sep. 22, 2009
7497277 Clamping device for axially harmonically oscillating components Mar. 3, 2009
7464772 Downhole pressure pulse activated by jack element Dec. 16, 2008
7392855 Vibratory pile driving systems and methods Jul. 1, 2008
7317989 Method and apparatus for chemometric estimations of fluid density, viscosity, dielectric constant, and resistivity from mechanical resonator data Jan. 8, 2008
7270182 Earth loop installed with sonic apparatus Sep. 18, 2007
7195069 Method and apparatus for backing off a tubular member from a wellbore Mar. 27, 2007
7191852 Energy accelerator Mar. 20, 2007
7178626 Method of seismic evaluation of subterranean strata Feb. 20, 2007
7093657 Earth loop installed with sonic apparatus Aug. 22, 2006
7066250 Well tubing/casing vibrator apparatus Jun. 27, 2006
7059426 Acoustic flow pulsing apparatus and method for drill string Jun. 13, 2006
7017681 Device for performing hydrodynamic action on wellbore walls Mar. 28, 2006

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