METHOD AND DEVICE FOR PREVENTING THE PUNCTURE OF A LOAD-SENSING AND PRESSURE-COMPENSATING CONTROL SYSTEM FOR A HYDRAULIC CRANE - Patent 0557390

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EP 0 557 390 A1

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(43)	Date of publication:
	01.09.1993 Bulletin 1993/35

(21)	Application number: 91920481.0

(22)	Date of filing: 14.11.1991

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International Patent Classification (IPC):

B66C 13/ 12^{( . )}
B66C 13/ 20^{( . )}

B66C 13/ 18^{( . )}
G05D 7/ 06^{( . )}

(86)	International application number:
	PCT/SE1991/000773

(87)	International publication number:
	WO 1992/008666 (29.05.1992 Gazette 1992/12)

(84)	Designated Contracting States:
	AT DE ES FR GB IT NL

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Priority:

16.11.1990 SE 19900003656

(71)	Applicant: HIAB AB
	S-824 01 Hudiksvall (SE)

(72)	Inventor:
	ANDERSSON, Lars S-820 65 Forsa (SE)

(74)	Representative: Perklev, Karin Cecilia, et al
	AWAPATENT AB, P.O. Box 5117 S-200 71 Malmö S-200 71 Malmö (SE)

(54)	METHOD AND DEVICE FOR PREVENTING THE PUNCTURE OF A LOAD-SENSING AND PRESSURE-COMPENSATING CONTROL SYSTEM FOR A HYDRAULIC CRANE