Ceramic motor
US5714833A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1996 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Mar 19, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/083
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc drive including a piezoelectric plate having two long and two short edges and a spacer attached to one of the long edges and at least one arm pivotable about an axis, the arm having first and second ends spaced from the axis and on opposite sides thereof, a read/write head attached to the first end of the arm and a rigid element on the second end of the arm, wherein the spacer of the piezoelectric plate is resiliently urged against the rigid element. In one preferred embodiment of the invention, the piezoelectric plate is stationary. In another preferred embodiment of the invention, the piezoelectric plate is movable with respect to the axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.