Patent · US Expired

Disk storage drive

US5777822A · kind A · utility

14Cited by
23References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 2, 1995
Grant dateJul 7, 1998
Priority date
Expiry dateJun 2, 2015

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02K11/014
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A disk storage has one or more disks provided with center holes. An electric motor extends coaxially through these holes and has an external rotor to the outer circumference of which the disks are secured so that they rotate with the rotor. A seal is provided for at least reducing the escape of contaminants from the motor.

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