Method of making piston rings
US6154958A · kind A · utility
3Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Mar 8, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49282
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of making piston rings includes the following steps: forming a base body on a mandrel by thermally spraying a metal on the mandrel; applying a low-friction coating to the base body; removing the base body from the mandrel; and cutting rings from the base body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.