METHOD AND ARRANGEMENT FOR MONITORING THE WORKING MOVEMENT OF A DEVICE OPERATED BY A HYDRAULIC CYLINDER - Patent 0891492

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EP 0 891 492 A1

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(43)	Date of publication:
	20.01.1999 Bulletin 1999/03

(21)	Application number: 97901100.0

(22)	Date of filing: 20.01.1997

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International Patent Classification (IPC):

F15B 15/ 28^{( . )}

(86)	International application number:
	PCT/FI1997/000026

(87)	International publication number:
	WO 1997/038227 (16.10.1997 Gazette 1997/44)

(84)	Designated Contracting States:
	DE DK SE

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Priority:

11.04.1996 FI 19960001582

(71)	Applicant: Lako Forest Oy Ltd.
	21160 Merimasku (FI)

(72)	Inventors:
	TOIVOLA, Alpo FIN-40500 Jyväskylä (FI) LAAKSONEN, Jari FIN-21160 Merimasku (FI)

(74)	Representative: Hiltunen, Pentti Juhani, et al
	Turun Patenttitoimisto Oy, P.O. Box 99 20521 Turku 20521 Turku (FI)

(54)	METHOD AND ARRANGEMENT FOR MONITORING THE WORKING MOVEMENT OF A DEVICE OPERATED BY A HYDRAULIC CYLINDER