Magnetic tape apparatus
US4354211A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1980 |
| Grant date | Oct 12, 1982 |
| Priority date | — |
| Expiry date | May 19, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/64
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic tape apparatus is disclosed herein and comprises a drum, means for supporting and rotating the drum, at least one transducer extending past the surface of said drum adapted to rotate therewith in a given plane, and means for presenting tape to said drum with its longitudinal axis parallel to said plane. Means are also provided adjacent the transducer for venting air from the air cushion between the rotating drum and the tape at the region of the transducer to bring the tape closer to the face of the transducer and at least one groove formed on the face of the transducer is used for venting air from the cushion between the transducer and tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.