A METHOD AND DRILL BIT FOR REDUCING THE CUTTINGS SIZE TO A PREDETERMINED MAXIMUM SIZE - Patent 1356185

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EP 1 356 185 A1

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(43)	Date of publication:
	29.10.2003 Bulletin 2003/44

(21)	Application number: 01985461.1

(22)	Date of filing: 21.12.2001

(51)	International Patent Classification (IPC)⁷: E21B 10/38, E21B 21/00

(86)	International application number:
	PCT/NO0100/506

(87)	International publication number:
	WO 0205/2122 (04.07.2002 Gazette 2002/27)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

21.12.2000 NO 20006591

(71)	Applicant: Moe, Per Thomas
	7089 Heimdal (NO)

(72)	Inventor:
	Moe, Per Thomas 7089 Heimdal (NO)

(74)	Representative: Hall, Matthew Benjamin
	Frank B. Dehn & Co.179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)

(54)	A METHOD AND DRILL BIT FOR REDUCING THE CUTTINGS SIZE TO A PREDETERMINED MAXIMUM SIZE