Apparatus and method for handling a flexible disk for testing
US4863039A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1983 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S209/933
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method are disclosed for handling a flexible disk for testing. The apparatus includes guide rails for initially positioning a disk for test. The apparatus also includes a variable speed motor for rotating the disk at a preselected rotation speed. The disk is rotated by clamping the disk betwen a motor driven rotating spindle and a retractable collet. The collet passes through an aperture in the disk to center and position the disk. Testing is accomplished by a test head assembly which is moved by a voice coil actuator. Positioning of the test head assembly is controlled by a light detector and ground glass scale coupled to the actuator and to the test head assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.