Linear actuator
US4191059A · kind A · utility
4Cited by
2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1977 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Oct 25, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18056
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A linear actuator for converting rotary motion to linear motion including an elongated rotary threadless shaft and a rider assembly mounted for movement axially of the shaft and carrying rollers mounted for rotation about their respective axes with their surface in frictional contact with the shaft. The roller's axes are disposed at an acute angle with respect to the shaft so that as the shaft is rotated the rider assembly will move along the shaft and carry with it such parts to which it may be attached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.