Sewing machine cabinet with power lift
US4717212A · kind A · utility
2Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1982 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Sep 20, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47B29/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sewing machine cabinet has a power lift operable by a rack and pinion type of mechanism whose pinion is driven by a reversible electric motor which preferably has incorporated therein braking means and speed reduction gearing. The rack is provided by one of a pair of guide columns, which is preferably indented along its length in sprocket formation. The pinion is preferably a sprocket wheel meshing with the sprocket indentations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.