Apparatus for retaining a heater on an injection molding nozzle
US6854971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2002 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Apr 30, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2745
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for retaining a heater on an injection molding nozzle comprises a retaining body configured to fit around the injection molding nozzle. The retaining body has two flanges extending inward. One is configured to be received in a groove in the injection molding nozzle; the other is configured to be received in a groove in the heater. An axial slot allows the retaining body to elastically spread outward. The retaining body also has at least one aperture that receives a thermocouple. The aperture is preferably an elongated hole having an axis parallel to a longitudinal axis of the retaining body. Preferably the heater is a thick-film heater and the thermocouple is installed adjacent one on the resistive elements of the thick-film heater. When the resistive elements produce different heat levels, the thermocouple is preferably installed adjacent the resistive element that produces the greatest heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.