Nozzle seal for an injection molding apparatus
US6869276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2002 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Oct 3, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2766
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A nozzle for an injection molding apparatus is provided. The nozzle includes a nozzle body, a heater and a first gap seal surface. The nozzle body defines a nozzle body melt passage, that is adapted to be downstream from and in fluid communication with a melt source, and upstream from and in fluid communication with a gate into a mold cavity in a mold component. The heater is thermally connected to the nozzle body for heating melt in the nozzle body melt passage. The first gap seal surface is positioned on a structure that is connected at least indirectly to the nozzle body. The first gap seal surface is adapted to be separated by a gap with respect to a second gap seal surface on the mold component. The gap is sized to inhibit the flow of melt between the first gap seal surface and the second gap seal surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.