Patent · US Expired

Hermetically sealed disk file

US4556969A · kind A · utility

26Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 28, 1984
Grant dateDec 3, 1985
Priority date
Expiry dateDec 28, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B23/0323
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An improved hermetically sealed disk file is disclosed in which the axis of rotation of the disk spindle and the longitudinal axis of a surrounding cylindrical housing are positioned transverse to one another so that cross-sectional diameter of the housing need be only slightly larger than that of the disks mounted on the spindle.

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