B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
B29B 9/06 (2006.01)
Patent
CA 2155863
An improved rotary melt cutter (17) capable of accomodating a wide variation in polymer melt viscosities and melt charac- teristics is provided by use of a controlled pressure spring mechanism (25) which oper- ates in conjunction with each of several inde- pendently articulated knife-assemblies (19) of the cutter (17). The knife-blade (10) cutting-edges (11) thereby maintain near- zero clearance from an extruder die-face (13) from which polymer strands are being ex- truded. The cutter (17) operates more effec- tively with less interruption and fouling than cutters of similar design but which utilize hy- draulic pressure as the means of maintaining near-zero clearance.
Cates Allen Arthur
Mcmullen Donald Ray
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
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