(19)
(11) EP 0 101 196 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.06.1985 Bulletin 1985/24

(43) Date of publication A2:
22.02.1984 Bulletin 1984/08

(21) Application number: 83304141

(22) Date of filing: 15.07.1983
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 19.07.1982 AU 493482

(71) Applicant: INGERSOLL-RAND (AUSTRALIA) LTD.
 ()

(72) Inventor:
  • Rowland, Thomas John
     ()

   


(54) Pellet mill die


(57) An extrusion die wherein extrusion passageways are provided with a working section having a smooth wall, and a controlled relief section having a rippled wall of similar effective diameter as the working section in order to control pellet expansion and other factors.






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