Molding system with integrated film heaters and sensors

  • US 6,575,729 B2
  • Filed: 07/02/2002
  • Issued: 06/10/2003
  • Est. Priority Date: 06/12/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. A heater for an injection molding runner nozzle, comprising:

  • a cylindrical, heat-conducting band substrate adapted to be placed over an outer surface of the nozzle;

    a first dielectric layer directly deposited on an outer cylindrical surface of said band;

    a conductive-ink resistive heating element directly deposited on said first dielectric layer, said heating element being formed in a pattern to apply heat through said band to the nozzle, said heating element having first and second ends, each said end having an electrical terminal; and

    a second dielectric layer directly deposited over said heating element, but not over the terminals.

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