Method of monitoring the quality of a package of thread
US4713655A · kind A · utility
4Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1985 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Jun 18, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Logic signals corresponding to a detected thread break and/or thread loop in a package being wound on a bobbin are evaluated within a logic circuit to communicate the quality of a thread package. The logic signals can be processed in various ways. In one embodiment, discrimination is made of repeated logic signals produced by a single thread break. In another embodiment, the total number of logic signals are counted. Blocking arrangements can be provided to block logic signals caused by the same thread break or thread loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.