Electronic stator measurement device
US4653318A · kind A · utility
5Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1985 |
| Grant date | Mar 31, 1987 |
| Priority date | — |
| Expiry date | Sep 10, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring the cross section of the stator of a downhole motor having a carrier shaped to travel through the helicoidal interior of the stator and a sensor including first and second bending beam-strain gage structures for generating electrical signals indicative of the cross section of the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.