An intermittent metering device for liquid detergents and/or additives to be introduced into program card industrial washing machines of the centrifugal types

(19)

(11)

EP 0 115 256 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	09.01.1985 Bulletin 1985/02

(43)	Date of publication A2:
	08.08.1984 Bulletin 1984/32

(21)	Application number: 83830230

(22)	Date of filing: 18.11.1983

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

(30)

Priority:

31.12.1982 IT 2386182

(71)	Applicant: ELTON CHEMICAL S.p.A.
	()

(72)	Inventor:
	Tosca, Eugenio ()

(54)	An intermittent metering device for liquid detergents and/or additives to be introduced into program card industrial washing machines of the centrifugal types

(57) @ The metering device comprises a liquid reservoir (1) communicating with an underlying siphon trap (4) through a conduit (2) including a check valve (3), into the siphon trap (4) ther opening a compressed air supply pipe controlled by a timed solenoid valve (7) and a pipe supplying the liquid to the washing machine.

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