Sewing machine thread monitor
US4192243A · kind A · utility
18Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1978 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | Oct 2, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B59/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The apparatus counts the number of stitches made by a sewing machine, counts the number of predetermined lengths of thread needed to make those stitches and outputs an alarm signal when the number of stitches per thread length either exceeds a predetermined number or is less than a predetermined number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.