(19)
(11) EP 0 349 679 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.11.1990 Bulletin 1990/46

(43) Date of publication A2:
10.01.1990 Bulletin 1990/02

(21) Application number: 88202613.1

(22) Date of filing: 22.11.1988
(51) International Patent Classification (IPC)5: B30B 9/22
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 06.07.1988 IT 4686888

(71) Applicant: DIEMME S.P.A.
I-48022 Lugo di Romagna(Ravenna) (IT)

(72) Inventors:
  • Melandri, Francesco
    I-48022 Lugo di Romagna Ravenna (IT)
  • Melandri, Primo
    I-48022 Lugo di Romagna Ravenna (IT)

(74) Representative: Corradini, Corrado 
Studio Ing. C. CORRADINI & C. S.r.l. 4, Via Dante Alighieri
42100 Reggio Emilia
42100 Reggio Emilia (IT)


(56) References cited: : 
   
       


    (54) Diaphragm press with internal wash system


    (57) A diaphragm press comprises a cylindrical vessel (7) rotating about its longitudinal axis and divided into two diametrically opposing parts by a flexible diaphragm, (8), a series of perforated longitudinal channels (10) being fixed to a part of the inner surface of the vessel and connected at one end to an external manifold (12) for collecting the juice. At their other end the channels (10) are connected to at least one further manifold (15) which is connected to means (99) for feeding water under pressure by way of valve means (160). The flexible diaphragm (8) is of such dimensions as to perfectly mate with the wall to which the channels (10) are connected and with the channels themselves so as to perfectly close the holes (100) of these latter when the diaphragm is thrust from its rear by the pressurised fluid.







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