Sewing machine frame cover and fastening therefor
US4651662A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1985 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Dec 23, 2005 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B73/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sewing machine frame and cover construction and fastening means for securing a warped cover in place over a frame opening without imparting frame distorting stresses. To obviate imparting stresses to the sewing machine frame as result of clamping a warped cover thereto, surfaces are provided at locations on the frame and cover chosen so that the surfaces engage simultaneously in spaced localized areas when the warped cover is positioned loosely over the frame opening. Fastening means located within the localized areas of engagement of these surfaces clamp the cover securely in place without disturbing the warp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.