Tape twine detecting device
US4993659A · kind A · utility
9Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | May 16, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tape twine detecting device is disclosed, in which the rotation direction of a reel base is detected on the basis of signals having waveforms of at least three different widths generated by the rotation of the reel base and a tape twine occurrence indicating signal is sent, when it is judged that the rotation is reverse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.