(19)
(11) EP 0 879 360 A1

(12)

(43) Date of publication:
25.11.1998 Bulletin 1998/48

(21) Application number: 97952804.0

(22) Date of filing: 26.11.1997
(51) International Patent Classification (IPC): 
F04D 9/ 06( . )
F04D 29/ 44( . )
(86) International application number:
PCT/EP1997/006591
(87) International publication number:
WO 1998/023864 (04.06.1998 Gazette 1998/22)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

(30) Priority: 27.11.1996 IT 1996VI00192

(71) Applicant: CALPEDA S.p.A.
I-36050 Montorso Vicentino (VI) (IT)

(72) Inventor:
  • SERAFIN, Carlo
    I-36100 Vicenza (IT)

(74) Representative: Bonini, Ercole 
c/o STUDIO ING. E. BONINI SRL Corso Fogazzaro 8
36100 Vicenza
36100 Vicenza (IT)

   


(54) DIFFUSER AND CONVEYOR DEVICE FOR A SINGLE-IMPELLER CENTRIGUGAL SELF-PRIMING PUMP