Sewing machine having a wireless controller
US5247449A · kind A · utility
15Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B69/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a sewing machine having a remote battery powered foot pedal control, that communicates with the sewing machine proper via a wireless signal, a monitoring system that periodically monitors the status of the battery and provides that information from the foot pedal control, along with speed instructions, to the sewing machine proper. A display on the sewing machine informs the operator when battery change time is approaching and when replacement is urgently needed. If the battery is not replaced when replacement is urgent, the sewing machine ceases operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.