Power arm
US4934203A · kind A · utility
39Cited by
19References
36Claims
0Family size
Inventors
Key dates
| Filing date | Jan 6, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Jan 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18672
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This invention is directed to a mechanical means for moving a member such as a gate. The mechanical means comprises a screw which can be extended and can be retracted for moving and for rotating the member. There is a power means for rotating the screw and a control for the power means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.