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Apparatus and method for near contact magnetic recording

  • US 5,850,317 A
  • Filed: 03/16/1993
  • Issued: 12/15/1998
  • Est. Priority Date: 10/31/1988
  • Status: Expired due to Fees
First Claim
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1. A rotating magnetic memory device comprising:

  • a rotating storage medium presenting a rotating magnetic data surface;

    a magnetic transducer;

    recirculating means for maintaining a recirculating film of liquid lubricant on said magnetic data surface; and

    a head-disk enclosure surrounding said rotating storage medium and said magnetic transducer, said magnetic transducer being supported above said rotating magnetic surface by said liquid film when writing data to or reading data from said rotating magnetic data surface, wherein said recirculating means includes;

    a reservoir in a lower portion of said head-disk enclosure,a hub assembly rotatably supporting said rotating storage media,a spiral channel formed in said hub assembly and extending from said reservoir for inducing an upward flow of lubricant from said reservoir through said channel, andmeans for distributing liquid lubricant from said spiral channel to the surface of said rotating storage media.

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