Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1994-03-07
1996-01-30
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
G11B 3314
Patent
active
054885213
ABSTRACT:
An information storage apparatus is disclosed for reading and/or writing information on a rigid disk, which includes a non-Newtonian liquid bearing interface between a transducer and a storage medium, instead of a conventional air or Newtonian liquid bearing. The non-Newtonian liquid has a composition which exhibits plastic or pseudoplastic flow at high rates of shear. Preferably, the liquid is of the class of compounds whose viscosity shows a negative dependence on share rate. Thus, as the relative speed of the transducer and the storage medium increases, while their relative spacing decreases, the increasing shear rate to which the liquid bearing is subjected causes the viscosity of the liquid to reduce. Resultantly, very low flying heights can be achieved, which increases the potential storage density on the storage medium, while the reduced drag exerted on the transducer by the lowered viscosity greatly reduces the power required to rotate the medium.
REFERENCES:
patent: 4626941 (1986-12-01), Sawada et al.
patent: 5097368 (1992-03-01), Lemke et al.
French William W.
Lemke James U.
Conner Peripherals, Inc.
Wolff John H.
LandOfFree
Information recording apparatus with a non-newtonian liquid bear does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Information recording apparatus with a non-newtonian liquid bear, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information recording apparatus with a non-newtonian liquid bear will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-160230