B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
B29B 13/02 (2006.01) B05C 5/04 (2006.01)
Patent
CA 2185278
An apparatus for liquifying and supplying thermoplastic material including a melting hopper having a plurality of separately controlled heating zones. The hopper is formed of thin, rolled metal having a relatively low heat conductivity, such as carbon steel. Heaters are located along the length of the hopper and are separately controlled by way of thermostats or temperature sensors, such that the heat applied in a nonuniform manner to the thermoplastic material in the hopper during various stages of the melting and dispensing process.
Bondeson Benjamin J.
Frates Paul S.
Gabryszewski Gregory J.
Petrecca Peter J.
Corporation Nordson
Macrae & Co.
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