(19)
(11) EP 0 623 693 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.01.1995 Bulletin 1995/02

(43) Date of publication A2:
09.11.1994 Bulletin 1994/45

(21) Application number: 94200782.4

(22) Date of filing: 25.03.1994
(51) International Patent Classification (IPC)5: D01D 4/00, D01D 4/08
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 04.05.1993 IT MI930880

(71) Applicant: COGNETEX S.p.A.
I-40026 Imola (Bologna) (IT)

(72) Inventors:
  • Prodi, Paolo
    I-48100 Ravenna (IT)
  • Pini, Mauro
    I-48018 Faenza (Ravenna) (IT)
  • Sangiorgi, Valerio
    I-48014 Castel Bolognese (Ravenna) (IT)

(74) Representative: Fusina, Gerolamo 
Ing. Barzanò & Zanardo Milano S.p.A, Via Borgonuovo, 10
I-20121 Milano
I-20121 Milano (IT)


(56) References cited: : 
   
       


    (54) Improved spinning block


    (57) The present invention relates to an improved spinning block (1) for spinning molten thermoplastic material to obtain synthetic yarn, said spinning block (1) comprising a clamping ring (6) operating at the lower end of the circumferential edge of the spinning block (1) to fix this latter to the overlying boiler body (11) by means of a releasable connection comprising threads (9) of one or more starts or cam-like projections.






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