Rotary body of hard material with plastic supporter
US4886377A · kind A · utility
14Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1987 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Dec 17, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49694
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary body of hard material with a plastic supporter and a method of manufacturing therefor, which essentially comprises a coating film coated with the rotary body and removed after molding so as to make a clearance between the rotary body and the supporter, so that rotation of the rotary body may be allowed smoothly. The method of this invention defines steps of molding, coating of film and removing of the film so as to obtain rotation of rotary body relative to the plastic supporter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.