Tape surface discriminating system
US4467215A · kind A · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1981 |
| Grant date | Aug 21, 1984 |
| Priority date | — |
| Expiry date | Dec 16, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/86
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for discriminating between the front and back surfaces of a tape over the entire length thereof, which comprises a device for discriminating the tape surfaces at least at one end of the tape, and a device for detecting any twisted section at an intermediate point of the moving tape on the basis of a change in the projected area of the tape in the tape width direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.