Turbine meter bearing
US3972233A · kind A · utility
9Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1974 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Sep 9, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2206/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A turbine meter having a center support bearing structure including components with mating coaxial cylindrical bearing surfaces formed of fired ceramic materials, in which one of the bearing surfaces is formed of a high strength ceramic consisting of at least 99.9% alumina having a crystal size of less than about 6 microns, and has a surface finish of about 7 microinches or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.