Magnetic tape cassette
US4969611A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1989 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Sep 29, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/08721
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic tape cassette, particularly, a digital audio tape cassette, having an improved hub brake structure. The cassette includes upper and lower casing body half portions, and a window member secured to the upper casing body half portion. The window portion rotatably supports the pair of hubs on which a tape is wound. The hub brake includes a pair of lugs engageable with the hubs to prevent their rotation when the cassette is not in use. The hub brake is provided with a pair of engaging portions slidably received between respective support portions of the window member and the upper casing body half portion of slidably mounting the hub brake thereon. A spring urges the hub brake into engagement with the hubs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.