Continuous testing of the thickness of the enamel coating of electric wires
US4197651A · kind A · utility
0Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1978 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Mar 6, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for continuously testing the thickness of the enamel coating of electric wires, in which the wire, after enamelling, passes between a fixed and a movable measuring roller. The wire is wrapped around the fixed measuring roller such that its wrap-around angle has a value between 0 and 15 degrees and the fixed and movable measuring rollers are positioned relative to each other such that their respective planes of symmetry are vertically displaced by a value between 0.5 and 2 mm. Using the process according to the invention, the thickness of enamel applied to the wire can be kept constant to about 0.5 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.