Sewing machine cassette threading system
US4183313A · kind A · utility
15Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1978 |
| Grant date | Jan 15, 1980 |
| Priority date | — |
| Expiry date | Dec 14, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B51/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sewing machine cassette threading system in which the thread handling instrumentalities of a sewing machine are arranged to accept thread from either a cassette or a conventional thread spool with a minimum of operator intervention. The sewing machine has a chamber formed therein to accept the cassette. The sewing machine thread handling instrumentalities are threaded by inserting a cassette into a cover enclosing the chamber and closing the cover. Thread from a conventional spool carried on the sewing machine arm may be placed in the cover for insertion into the thread handling instrumentalities when the cover is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.