Contact start-stop self-elevating air supported magnetic recordi

Details Contact start-stop self-elevating air supported magnetic recordi Contact start-stop self-elevating air supported magnetic recordi

1974-08-26

1976-05-11

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360130, G11B 560

Patent

active

039567702

ABSTRACT:
The present device is a flying head type element comprising a light weight housing means formed to provide sled or runner means protruding from its underside. Each sled or runner means has a magnetic read, write or erase head (or any combination thereof) located therein. Since the land area, or flying face, against which the layer of air (being dragged by the recording medium) pushes is relatively small, i.e., the area of the runner, the value of the loading force necessary to keep the head in close proximity to the recording surface is relatively small. In addition, the loading device is also the support means for the housing and is formed to keep the housing means from being spuriously moved axially or radially in response to a run-out of the disc surface. The housing area is so light and loaded so lightly that if the cushion of air fails for any reason and the housing means comes in contact with the disc surface, there will be no damage inflicted to the disc surface.

REFERENCES:
patent: 2913536 (1959-11-01), Fuller et al.
patent: 3177495 (1965-04-01), Felts
patent: 3193810 (1965-07-01), Sampson
patent: 3754104 (1973-08-01), Piper et al.
patent: 3774183 (1973-11-01), Roscamp
patent: 3812535 (1974-05-01), Higgins et al.

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