Granulator and knife construction therefor

Details Granulator and knife construction therefor Granulator and knife construction therefor

1977-04-11

1978-08-15

Lake, Roy

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

241242, 241294, B02C 1302, B02C 1818

Patent

active

041067088

ABSTRACT:
The present disclosure relates to a knife construction adapted for positioning within cut out seat portions of a rotor. The base of the knife is provided with a downwardly extending relatively narrow leg at the front face thereof which is adapted to engage base portions of the rotor seat so as to form an area of high sealing contact between the engaging surfaces and thus prevent liquified, i.e. fluid acting under high pressures, plastic material from flowing underneath the knife and thus undesirably altering its position vis-a-vis the rotor. A further embodiment includes an elevated or stepped pad forming the seat for receipt of the knife, the stepped or elevated front face of the pad forming a continuation of the blade face of the knife so as to distribute the forces imparted by such liquified plastic material over a larger combined area and thus reduce the force thereof upon the knife/seat interface.

REFERENCES:
patent: 2830770 (1958-04-01), DeLuca
patent: 3270968 (1966-09-01), Hess et al.
patent: 3301291 (1967-01-01), Hughes
patent: 3378210 (1968-04-01), Bambach
patent: 4000860 (1977-01-01), Gotham

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