Hydraulic-motor driven rotary spray-arm device for dish-washing machines

(19)

(11)

EP 0 321 025 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	12.07.1989 Bulletin 1989/28

(43)	Date of publication A2:
	21.06.1989 Bulletin 1989/25

(21)	Application number: 88202807.9

(22)	Date of filing: 08.12.1988

(51)	International Patent Classification (IPC)⁴: A47L 15/22

(84)	Designated Contracting States:
	AT BE CH DE ES FR GB GR IT LI LU NL SE

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Priority:

18.12.1987 IT 2291387 U

(71)	Applicant: Dall'Oglio, Erminio
	I-21040 Venegono Superiore (Varese) (IT)

(72)	Inventor:
	Dall'Oglio, Erminio I-21040 Venegono Superiore (Varese) (IT)

(74)	Representative: Faraggiana, Vittorio, Dr. Ing.
	Ingg. Guzzi & Ravizza S.r.l. Via Vincenzo Monti 8 20123 Milano 20123 Milano (IT)

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References cited: :

(54)	Hydraulic-motor driven rotary spray-arm device for dish-washing machines

(57) The invention concerns a dish-washing machine of the type comprising at least one spray-arm (17, 18) supported rotably on a shaft (21). A hydraulic motor, such as a hydraulic turbine (22, 29), sets in rotation the spray-arms. In a preferred embodiment the flow of water feeding the turbine pass into the spray-arm to be discharged trough the nozzles (19, 31) on the arm to obtain the washing and rinsing effect.

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