METHOD AND APPARATUS FOR CONTROLLING FROTH FLOTATION MACHINES - Patent 0918566

(19)

(11)

EP 0 918 566 A1

(12)

(43)	Date of publication:
	02.06.1999 Bulletin 1999/22

(21)	Application number: 97925729.0

(22)	Date of filing: 22.05.1997

(51)

International Patent Classification (IPC):

B03B 13/ 02^{( . )}
B03D 1/ 14^{( . )}

B03D 1/ 02^{( . )}

(86)	International application number:
	PCT/US1997/008871

(87)	International publication number:
	WO 1997/045203 (04.12.1997 Gazette 1997/52)

(84)	Designated Contracting States:
	ES GB IE PT

(30)

Priority:

31.05.1996 US 19960021175P

(71)	Applicant: BAKER HUGHES INCORPORATED
	Houston Texas 77027 (US)

(72)	Inventors:
	NELSON, Michael, G. Murray, UT 84123 (US) GRITTON, Kenneth, S. Murray, UT 84123 (US) HALES, Lynn, B. Salt Lake City, UT 84108 (US) FOOT, Donald, G., Jr. Fruit Heights, UT 84037 (US)

(74)	Representative: Finck, Dieter, Dr.Ing., et al
	v. Füner Ebbinghaus Finck Hano Mariahilfplatz 2 - 3 81541 München 81541 München (DE)

(54)	METHOD AND APPARATUS FOR CONTROLLING FROTH FLOTATION MACHINES