Insulator for thermoplastic molding nozzle assembly
US5569475A · kind A · utility
37Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1994 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Nov 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2766
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In a thermal plastic molding device, a thermal insulator is provided between the nozzle assembly and the surrounding plates. Preferably, the insulator is a ceramic material, such as zirconia oxide, which is sprayed on in a thin coating, preferably in the range of 0.007-0.012 inches. Alternatively, other nonmetallic coatings can be used, or the insulator can be provided as a ring around the nozzle assembly instead of as a coating. A coating can be applied either to the plate or to the nozzle assembly. A protective coating, preferably a metal, is sprayed or plated over the ceramic insulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.