Slide valve position indicator and magnetic coupler
US4743170A · kind A · utility
4Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1987 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Sep 3, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K49/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Movement in a pressurized environment is transmitted to a non-pressurized environment by means of a strong magnetic coupling whereby linear movement of a magnet in a pressurized environment causes linear movement of a surrounding magnet which is in a non-pressurized environment. Because of the strong magnetic coupling, the surrounding magnet is used to drive a linear to rotary motion converter. In the preferred embodiment, the pressurized environment is within a screw compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.