Linear voice actuator with replaceable magnetic coil
US5798582A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Mar 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49133
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear voice coil actuator using a removable electromagnetic coil includes an electrically conductive wire wound on a plastic bobbin. The wire which is wrapped around the bobbin is connected to an external power source as the electromagnetic coil is attached to the linear voice coil actuator. Current applied from the external power source causes the electromagnetic coil to selectively generate a magnetic field and, in response to generation of the magnetic field, to move translationally within a fixed magnetic field. The translational movement of the coil moves a grip which is mounted on the coil to allow the grip to selectively position and manipulate objects and things.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.