Linear voice coil retractor
US5726508A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1995 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Dec 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53178
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An actuator for precisely moving and positioning a manufacturing component includes a housing on which a magnet is mounted. An electromagnetic is slidingly mounted on the housing for movement within the magnetic field generated by the magnet. A rod, having a member for gripping the component, is attached for translational movement with the electromagnetic coil. In the operation of the actuator, a current is selectively applied to the electromagnetic coil. The current in the coil creates a magnetic field that moves the electromagnetic coil and the attached grip within the magnetic field to position the component as desired in translation. A retractor causes the grip to preferentially adopt a predetermined position, or dwell configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.