PULSED ELECTRIC ROCK DRILLING APPARATUS WITH NON-ROTATING BIT AND DIRECTIONAL CONTROL

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EP 2 329 095 B8

(12)	CORRECTED EUROPEAN PATENT SPECIFICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 B1)

(48)	Corrigendum issued on:
	29.05.2019 Bulletin 2019/22

(45)	Mention of the grant of the patent:
	02.01.2019 Bulletin 2019/01

(21)	Application number: 09812049.6

(22)	Date of filing: 26.08.2009

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International Patent Classification (IPC):

E21B 7/15^(2006.01)

(86)	International application number:
	PCT/US2009/055075

(87)	International publication number:
	WO 2010/027866 (11.03.2010 Gazette 2010/10)

(54)	PULSED ELECTRIC ROCK DRILLING APPARATUS WITH NON-ROTATING BIT AND DIRECTIONAL CONTROL IMPULSARTIGER ELEKTROGESTEINSBOHRER MIT NICHTROTIERENDER BOHRSPITZE UND DIREKTIONALER STEUERUNG APPAREIL DE FORAGE DE ROCHE ÉLECTRIQUE PULSÉ AVEC TRÉPAN NON ROTATIF ET COMMANDE DE DIRECTION

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

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Priority:

26.08.2008 US 198868

(43)	Date of publication of application:
	08.06.2011 Bulletin 2011/23

(60)	Divisional application:
	18208250.3 / 3461988

(73)	Proprietor: SDG LLC
	Minden, Nevada 89423 (US)

(72)	Inventor:
	MOENY, William, M. Bernalillo NM 87004 (US)

(74)	Representative: McWilliams, David John
	Withers & Rogers LLP 4 More London Riverside London SE1 2AU London SE1 2AU (GB)

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References cited: :

WO-A1-03/069110
WO-A1-2008/097101
CA-A1- 2 821 140
US-A1- 2006 037 779

WO-A1-03/069110
WO-A2-2008/003092
US-A- 4 741 405
US-B2- 6 658 968

BIELA J ET AL: "Solid state modulator for plasma channel drilling", IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 16, no. 4, 1 August 2009 (2009-08-01) , pages 1093-1099, XP011272675, ISSN: 1070-9878, DOI: 10.1109/TDEI.2009.5211860
William C Maurer: "Chapter 33 SPARK DRILLING", Rock Mechanics - Theory and Practice, 19 June 1969 (1969-06-19), pages 687-703, XP055255192, Retrieved from the Internet: URL:https://www.onepetro.org/download/conf erence-paper/ARMA-69-0687?id=conference-pa per/ARMA-69-0687 [retrieved on 2016-03-04]
MACGREGOR S J ET AL: "Plasma Channel Miniature Hole Drilling Technology", IEEE TRANSACTIONS ON PLASMA SCIENCE, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 32, no. 5, 1 October 2004 (2004-10-01), pages 2055-2061, XP011121053, ISSN: 0093-3813, DOI: 10.1109/TPS.2004.835489

Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).