Patent · US Expired

Gripping drive for magnetic tape

US4624399A · kind A · utility

2Cited by
12References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 19, 1985
Grant dateNov 25, 1986
Priority date
Expiry dateMar 19, 2005

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B15/29
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Tape drive apparatus having a drive roller 1 and pinch roller 2 including a idler roller 3 around which tape 4 passes. The pinch roller 2 which is rotatable about two normal axes (A2 and A4), is resiliently urged against the drive roller 1 and the idler roller 3, the two rollers being spaced apart from each other. This apparatus is particularly useful for magnetic tape cassettes, the pinch roller 2 being formed as either part of the cassette or as part of a tape recorder/player for using a cassette.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.