Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1996-02-27
1998-07-07
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
36013021, 242548, G11B 1560
Patent
active
057778230
ABSTRACT:
A linear-type tape transport includes a pair of air bearings on each side of a transducer when viewed in reference to the tape transport direction. Each air bearing includes a housing and a bear member formed of a porous material. The housing and the bearing member form a plenum connectable to a pressurized air source such that air flow through the porous material creates an air cushion to support a tape medium during transport. The porous material is preferably a ceramic that is between two and fifty percent open. The bearing member has a datum face with the bearing surface thereof being planar and at a small obtuse angle to the datum face thereby to automatically urge an edge of the tape against the datum face. The housing is preferably U-shaped in cross-section with an arcuate bottom and parallel sidewalls.
REFERENCES:
patent: 3840894 (1974-10-01), Arseneault
patent: 3961369 (1976-06-01), Baumann et al.
patent: 5155639 (1992-10-01), Platter et al.
IBM Technical Disclosure Bulletin, "Air Supported Compliant Tape Guide", vol. 17, #4, Sep. 1974, p. 966, P.J. Arseneault et al.
Henson Michael R.
Levy Stuart S.
Martin Timothy J.
Watkins Kevin M.
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