Coating thickness gauge
US6243661A · kind A · utility
13Cited by
16References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Feb 12, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B21/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A coating thickness gauge is provided with a facility to store one or more zero offset values and to automatically subtract a chosen zero offset value from a measured coating thickness value. The gauge may be used to conveniently determine the thickness of coatings applied to rough surfaces using the zero offset calibration method where the gauge is provided with a key or keys. In order to prevent accidental adjustment of the calibration or any other important operational parameter of the gauge said key or keys must be depressed and held for a predetermined period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.