Prespray processed cylinder inside and cylinder inside prespray processing method
US6622685B2 · kind B2 · utility
29Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jul 12, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F1/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cylindrical surface (3) is roughed to be prepared for a spray film (11) to be formed thereon, by cutting therein rough undulations (21) in a threaded form, using a cut chip (20) leaving a groove part (21a) of a respective undulation (21) in a preset direction or cut form, for breaking or partially tearing off a ridge part (21b) of the rough undulation (21) to have a remainder of the ridge part (21b) formed with finer undulations (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.