Stylus protecting mechanism for video disc player
US4442517A · kind A · utility
2Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1982 |
| Grant date | Apr 10, 1984 |
| Priority date | — |
| Expiry date | Dec 13, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B3/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The stylus arm carriage is provided with a slidably-mounted plunger. When the carriage is driven to an off-record home position, a portion of the front wall of the player engages a protruding end of the plunger to drive it in. The other end of the plunger engages a carriage-mounted stylus cleaner mechanism to lock it in place while the carriage is disposed at the home position to prevent the possibility of accidental contact between a pickup stylus and the cleaner mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.