Patents by Inventor Harry Ray Duer

Harry Ray Duer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus and method for testing magnetic disk drive components
    Patent number: 6099362
    Abstract: An apparatus for testing magnetic heads that interact with magnetic disks includes a translational slide and a rotatable arm mounted to one end of the slide. The translational slide moves the rotatable arm in a longitudinal direction parallel to the surface of a magnetic disk. The arm rotates the magnetic head to different positions relative to data tracks on the disk. A second translational slide moves the magnetic head vertically above the disk to adjust the vertical position of the head. The three movements of the head, (1)horizontally across the disk, (2)rotationally by the arm, and (3)vertically relative to the disk surface are controlled by servomechanisms. A read/write amplifier circuit is connected to the head under test. The test apparatus is controlled by a computer that interfaces with circuitry connected to the servomechanisms.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: August 8, 2000
    Assignee: Read-Rite Corporation
    Inventors: Elliot Viches, Mostafa Mahmoudian, Jagdeep S. Buttar, Oleg A. Gergel, Patrick A. Weber, Victor Rudman, Harry Ray Duer
  • Apparatus and method for testing magnetic heads using translational slides and a rotatable arm
    Patent number: 5801531
    Abstract: An apparatus for testing magnetic heads that interact with magnetic disks includes a translational slide and a rotatable arm mounted to one end of the slide. The translational slide moves the rotatable arm in a longitudinal direction parallel to the surface of a magnetic disk. The arm rotates the magnetic head to different positions relative to data tracks on the disk. A second translational slide moves the magnetic head vertically above the disk to adjust the vertical position of the head. The three movements of the head, (1)horizontally across the disk, (2)rotationally by the arm, and (3)vertically relative to the disk surface are controlled by servomechanisms. A read/write amplifier circuit is connected to the head under test. The test apparatus is controlled by a computer that interfaces with circuitry connected to the servomechanisms.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: September 1, 1998
    Assignee: Read-Rite Corporation
    Inventors: Elliot Viches, Mostafa Mahmoudian, Jagdeep S. Buttar, Oleg A. Gergel, Patrick A. Weber, Victor Rudman, Harry Ray Duer