Heated blades for wax melting
US6957686B2 · kind B2 · utility
3Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2003 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Jul 21, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C7/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A knife for heating the wax on the surface of a wax runner. The knife as a surface which is recessed in the center of the surface to permit melted wax to flow up into the recessed area and not flow away from the knife. Alternately, conformal heating surface which melts only that portion of the wax runner to which the pattern gate is affixed. Additionally an electrical circuit is provided which includes a heater and a temperature controller to limit the temperature at which wax is melted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.