Apparatus and methods for cooling slot step elimination
USRE39398E1 · kind E1 · reissue
4Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2004 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jun 1, 2024 |
Classification
- Technology area (CPC —)General
Abstract
An airfoil core die includes a tab for forming a continuous and smooth contour and extension of a first trailing edge slot recessed all to a bottom of the airfoil. The contour is formed on each airfoil core at injection and is maintained through to finish casting of the airfoil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.