Injection nozzle with enhanced heat transfer characteristics
US8714965B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 30, 2013 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | May 30, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/2708
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection nozzle that can be used in an injection blow molding system without use of an external heat source comprises a two-piece structure broadly including a structural outer body for coupling the nozzle to a resin manifold and a thermally conductive insert. At least a portion of an axial length of the insert has an outer diameter that is less than an inner diameter of a coinciding coaxial portion of the outer body, such that the differences in the inner and outer diameters present an insulating air gap along at least a portion of the nozzle length. A sufficient operating temperature for hot melt resin can then be obtained without use of the external heat source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.