Heat transfer monitoring/measuring device
US6471395B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A heat transfer monitoring and/or measuring device, especially a flow indicator for media flowing through a pipe (1), tank or fitting, with a sensor housing (2) and with two sensor elements (3, 4), the sensor elements (3, 4) each having a metallic sensor surface (5) which comes into contact with the flowing medium. In the flow indicator, the problem “deposition or formation” of disruptive layers on the sensor surfaces (5) of the sensor elements (3, 4) is solved by the element (3) which is made as a heating element having an electrically conductive protective lead (6) and by the protective lead (6) forming a closed protective circuit which includes the pipe (1), tank, or the fitting, the flowing medium and the sensor element (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.