Tape cassette
US4844377A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Mar 7, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/08735
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a tape cassette suitable for VTRs which allows mounting of two kinds of tape cassettes whose outer dimensions are different from each other. The tape cassette has a front cover for covering a magnetic tape stretched in the front of a cassette body and a rear cover for covering the rear side of the magnetic tape, and the front edge of the upper surface of the rear cover is arranged to be normal to the upper surface of the cassette body so as to prevent error-insertion and to allow simple and sure insertion into a VTR and provide an excellent air-tightness, resulting in the prevention of image deterioration due to increase of drop out caused by entering of dust and so on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.