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US 2002/0054932 A1Published application
Compact cartridge hot runner nozzle and method of making
AssigneeMold-Masters Limited
InventorsJobst U. Gellert, Denis Babin, Jonathon Fischer
Life of this patent
Estimating the term…
Abstract
The present invention provides an electrically heated nozzle for injection molding which is insulated to prevent conduction of electricity and loss of thermal transmission to the casing, with first and second thermocouples for sensing temperature of the nozzle, the two thermocouples are independent so they can act either independently or simultaneously to sense temperature conditions in the melt channel of the nozzle.
Claims3
An injection molding hot runner nozzle comprising:
- a nozzle,
- said nozzle having a melt channel,
- a nozzle heater for providing heat to a selected portion of said melt channel,
- a first thermocouple located in thermal contact with said nozzle and a second thermocouple located in thermal contact with said nozzle, wherein each of said first and second thermocouples are in thermal contact with said selected portion of said melt channels and wherein said thermocouples are electrically independent of each other so that said thermocouples may be operated simultaneously and alternatively with respect to each other.
1 more element
An injection molding hot runner nozzle comprising:
- a nozzle, said nozzle having a melt channel,
- a nozzle heater to provide heat to said melt channel,
- a first thermocouple located in thermal contact with said nozzle and a second thermocouple located in thermal contact with said nozzle, and wherein said thermocouples are electrically independent of each other so that said thermocouples may be operated simultaneously and alternatively with respect to each other, and wherein said thermocouples are located substantially at two similar locations along said nozzle.
An injection molding system comprising:
- an injection manifold having manifold melt channels,
- an injection nozzle in communication with the manifold,
- a first thermocouple located in thermal contact with said nozzle and a second thermocouple located in thermal contact with said nozzle, wherein said thermocouples are electrically independent of each other so that said thermocouples may be operated simultaneously and alternatively with respect to each other.
Dependencies are inferred from the claim text.