Simplified actuation of two step buttonhole in electronically controlled sewing machine
US4161150A · kind A · utility
4Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1978 |
| Grant date | Jul 17, 1979 |
| Priority date | — |
| Expiry date | Oct 23, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B19/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electronically controlled sewing machine having buttonhole capability and a reverse stitch actuating switch wherein actuation of the reverse switch during a buttonholing operation will initiate the second step of the buttonhole. Signals characteristic of selection of a buttonhole mode of operation are used in a logic combination to enable reverse selecting means to be used to initiate the second step of the buttonhole while inhibiting its use to implement reverse stitching. Absence of these characteristic signals will permit the reverse selecting means to be used to implement reverse stitching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.