Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1998-04-15
2000-05-09
Ometz, David L.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360106, G11B 555, G11B 2112
Patent
active
060612061
ABSTRACT:
A head stack assembly for mounting to a pivot bearing cartridge in a disk drive includes a coil having opposite electrical ends and a unitary molded plastic E-block fabricated from a first thermoplastic material containing electrically conductive filler material such that the E-block is electrically conductive. The E-block defines a generally cylindrically shaped body portion and a plurality of elongated arms, the body portion having a pivot bore for receiving the pivot bearing cartridge, a plurality of spaced-apart arm-support regions, and a surface defining a mounting site. Each arm is cantilevered from a respective one of the arm-support regions to project radially away from the pivot bore. The head stack assembly further includes an overmolded coil frame securing the coil to the body portion such that the coil is cantilevered to project radially away from the pivot bore. The overmolded coil frame is fabricated from a second thermoplastic material and is electrically non-conductive. The head stack assembly further includes a flex circuit cable having a portion secured at the mounting site, the flex circuit cable including a plurality of conductors, an electrical path from a first one of the conductors to provide ground potential to the E-block, and a pair of electrical paths from a second and a third of the conductors to the opposite electrical ends of the coil.
REFERENCES:
patent: 4233477 (1980-11-01), Rice et al.
patent: 4549157 (1985-10-01), Loubier
patent: 4855853 (1989-08-01), Matsushita et al.
patent: 5051855 (1991-09-01), Ghose et al.
patent: 5122703 (1992-06-01), Takahashi et al.
patent: 5165090 (1992-11-01), Takahashi et al.
patent: 5305169 (1994-04-01), Anderson et al.
patent: 5382851 (1995-01-01), Loubier
patent: 5497282 (1996-03-01), Hoffmann et al.
patent: 5528091 (1996-06-01), Loubier et al.
patent: 5621590 (1997-04-01), Pace et al.
patent: 5677815 (1997-10-01), Chan
patent: 5734528 (1998-03-01), Jabbari et al.
patent: 5818667 (1998-10-01), Larson
Edwards John
Foisy Gregory G.
Larson Nils Eric
Narayan Sudha
Sancheti Ajit Fathailal
Ometz David L.
Shara Milad G.
Western Digital Corporation
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