Fluid-operated actuator with improved structure

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(11)

EP 1 857 685 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	18.02.2009 Bulletin 2009/08

(43)	Date of publication A2:
	21.11.2007 Bulletin 2007/47

(21)	Application number: 07009277.0

(22)	Date of filing: 09.05.2007

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International Patent Classification (IPC):

F15B 15/06^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK RS

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Priority:

15.05.2006 IT MI20060952

(71)	Applicant: Air Torque S.p.A.
	24060 Costa di Mezzate (Bergamo) (IT)

(72)	Inventors:
	Marinoni, Antonio 25-24064 Grumello Del Monte (Prov. of Bergamo) (IT) Paris, Ignazio 24064 Grumello Del Monte (Prov. of Bergamo) (IT) Rota, Santo 24061 Albano S. Alessandro (Prov. of Bergamo) (IT)

(74)	Representative: Alagem Modiano, Lara S. et al
	Modiano & Associati Via Meravigli, 16 20123 Milano 20123 Milano (IT)

(54)	Fluid-operated actuator with improved structure

(57) A fluid-operated actuator with improved structure, comprising an outer enclosure (2) for containing the mutually opposite pistons (3) provided with racks (4) for engagement with a pinion (5) formed on an actuation pivot (6) which can be accessed from the outside, the outer enclosure (2) being constituted by a central body (10) which is closed by two head blocks (11), the head blocks (11) defining at least partially the chambers (20) for the hermetic sliding of the pistons (3).

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