Magnetostrictive ambler motor
US5281875A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Aug 18, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An actuator having first and second brake sections, one of the first and second sections movable relative to the other along a predetermined axis, spaced apart pairs of brakes in each of the brake sections, a spring connected between the first and second brake sections for biasing the first section away from the second section along the axis, a pusher rod between the first and second sections parallel to the predetermined axis, operative in response to an activating control signal to expand axially and upon removal of the control signal to contract to its original length, and a device for selectively activating the brakes in each section and the push rod such that the actuator moves in a selected direction along the axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.