Fluid conduit having a variable inner diameter
US5316261A · kind A · utility
33Cited by
17References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Oct 26, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow measuring or flow metering device having a dynamically variable inner diameter. The flow device uses electrorheological fluid to support an inner flexible membrane. The quantity of electrorheological fluid is varied to change the inner diameter of the flexible membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.