Pistons
US4586553A · kind A · utility
8Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1983 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Jun 24, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2253/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is provided for pressure casting a piston with a crown insert and a cavity. The process comprises casting crown down in a mould and, before casting, placing in the mould means for forming a crown insert and a soluble salt core forming a cavity in the piston. The salt core is held by the crown insert means to position the salt core in the mould so preventing the salt core moving during pressure casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.