Omni-directional thread cutter
US4325316A · kind A · utility
1Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1980 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Nov 12, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B65/003
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An omni-directional thread cutter in a sewing machine including an annular groove formed in the cylindrical surface of the presser bar. The lower surface of the groove forms an acute angle with the cylindrical surface thereby forming a sharp cutting edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.