Split band actuator
US4399477A · kind A · utility
17Cited by
2References
14Claims
0Family size
Inventor
Key dates
| Filing date | Dec 4, 1980 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Dec 4, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5521
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stepper-motor-driven capstan is connected to a split band whose two portions loop around two idlers disposed on a displacement member and in line with the displacement and are doubled back to be affixed to another stepping device, such as multi-position armature devices or another step-motor-driven capstan. This arrangement permits interspersing of steps in order to reduce the actuator step length for a given stepping angle of the motor or motors, for increasing, for example, track density on a disk cooperating with a transducer on the displacement member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.