Video disc player having caddy lockout mechanism
US4443872A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 1982 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | May 3, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/0328
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A caddy-type player has a pair of spring-loaded lockout members disposed at the opposite ends of the caddy input slot. The lockout members are positioned inside and outside the caddy insertion path, respectively, in response to the presence of and the absence of a record/spine assembly inside the player. The lockout members have square edges and sloping edges which are, respectively, disposed perpendicularly and non-perpendicularly to the caddy insertion path when the lockout members are positioned in the caddy insertion path. When an empty caddy sleeve is inserted into the player to retrieve a retained record/spine assembly, its leading edges engage the respective sloping edges of the lockout members to position the lockout members outside the caddy insertion path. If a full caddy is inserted into the player, while it already has another record/spine assembly inside, the square edges of the lockout members engage the leading edge of the full caddy to prevent it from going in.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.