Karman's vortex flow meter
US5563350A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1994 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Jun 21, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/325
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Karman's vortex flow meter eliminates the problem of external vibration resonating an amplifier casing to lower measurement accuracy of a vortex detecting section. In the flow meter, O-rings fit in two annular grooves formed on an outer surface of a supporting stand hollow cylinder. A casing fits onto the hollow cylinder of the supporting stand with the two O-rings being placed therebetween. A pair of blind holes or recesses formed in the hollow cylinder diametrically oppose one another and are located between the two O-rings. Bolts inserted into the recesses with gaps spaced around their end portions serve as stoppers by limiting axial movement of the casing with respect to the hollow cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.