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Stationary magnetic head with a fluid operated tape lifter

  • US 4,479,158 A
  • Filed: 05/12/1982
  • Issued: 10/23/1984
  • Est. Priority Date: 05/12/1982
  • Status: Expired due to Term
First Claim
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1. A magnetic head for sensing magnetic transitions from a flexible magnetic medium comprising:

  • a plurality of transducers situated on an operative face of the head for sensing the magnetic transitions as the medium passes adjacent to the transducers;

    said operative face having a plurality of slots, at least some of which are formed parallel to the motion of the medium and adjacent to the leading and trailing edges of the medium contact with the operative face;

    means for introducing fluid under pressure between the medium and the operative face of the head; and

    means connected to said fluid introducing means for controlling the fluid under pressure entering into said fluid introducing means;

    said fluid introducing means, when actuated, introducing the fluid under pressure such that the medium forms into a tent-like structure over the operative face of the head with the fluid being contained within the tent-like structure and permitted to controllably escape through the slots;

    said controlling means being actuated to provide fluid to said fluid introducing means when said medium is substantially stationary relative to said head;

    wherein said fluid will quickly evacuate through the slots when said controlling means stops the entry of fluid under pressure into said fluid introducing means.

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