Method and apparatus for detecting the presence of yarns
US4088010A · kind A · utility
0Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1976 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | Dec 30, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for sensing the presence or absence of yarns using a simple airflow in an open slot formed between parallel plates, the pressure upstream of the proper yarn path being sensed. In one form, the pressure is sensed at multiple points and averaged to accommodate yarn oscillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.