Double grooved spacer for a disc drive
US6172844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/038
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a double grooved spacer for reducing coning of discs. A double grooved spacer includes a body portion with a plurality of spring flanges radially extending therefrom to form an inner radial groove and an outer radial groove. The body portion in conjunction with the plurality of spring flanges form a generally I-shaped cross-section. The double grooved spacer further includes circumferentially extending contact nodes disposed on the spring flanges so that the clamping force is localized at selected positions on the discs and the double grooved spacers to provide uniform distribution of the clamping force within the disc stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.