Load/unload ramps and their compositions

Details Load/unload ramps and their compositions Load/unload ramps and their compositions

2005-06-07

2005-06-07

Heinz, A. J. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head mounting

For moving head into/out of transducing position

Reexamination Certificate

active

06903902

ABSTRACT:
Compositions and materials for use in load/unload ramps in magnetic disk drive assemblies are disclosed, particularly compositions or materials to improve at least one of the desired characteristics of low wear, low cost, high mechanical stability and high moldability. Thermoplastic polymers, such as acetal homopolyrners, acetal copolymers, polyetherimides, polyphenylene sulfides, and polysulfones, are combined with other compositions, such as polyaramides, to improve the characteristics of a load/unload ramp constructed therefrom. Additionally, another material may be added, such as a polytetrafluoroethylene or perfluoropolyether.

REFERENCES:
patent: 5664015 (1997-09-01), Ford et al.
patent: 5831795 (1998-11-01), Ma et al.
patent: 6104573 (2000-08-01), Nicklos et al.
patent: 6181528 (2001-01-01), Reinhart et al.
patent: 6183929 (2001-02-01), Chow et al.
patent: 6424501 (2002-07-01), Tsujino et al.
patent: 6452753 (2002-09-01), Hiller et al.
patent: 2002/0123282 (2002-09-01), McCarthy et al.

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