Rotary pelletizing machine with matrix disc having copper and lower plungers

  • US 5,148,740 A
  • Filed: 03/08/1991
  • Issued: 09/22/1992
  • Est. Priority Date: 06/08/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. A rotary pelletizing machine, comprising a rotatable matrix disc;

  • a plurality of upper plungers and lower plungers guided in said matrix disc; and

    means for holding said lower plungers form falling out during a dismounting of said matrix disc, said holding means including a braking ring arranged in said matrix disc and pressing radially against said lower plungers so as to hold said lower plungers from falling out, said matrix disc being provided with a peripheral groove in which said braking ring is arranged, said matrix disc having a plurality of openings for receiving said lower plungers, and a plurality of connecting openings, said peripheral groove being connected with said openings for receiving said lower plungers through said connecting openings.

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