Dual air vane actuator latch apparatus for a disc drive
US6339521B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for increasing the operative force on an air vane latch apparatus in a disc drive involves providing an additional air vane on the pivoting air filter/latch to provide more torque on the latch during low pressure operating conditions and/or when less than an optimum number of discs are installed in the disc drive. The additional air vane is positioned beneath a top disc in the disc stack to at least catch wind generated adjacent the underside surface of the disc by the rotation of the top disc. The wind so generated pushes against this additional air vane supplementing that generated by the upper air vane thus increasing the torque applied to the pivoting air filter by the wind to ensure that there is sufficient wind pressure accumulation against the air vane and air filter latch to unlatch the actuator during all conditions of normal disc drive operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.