Patents by Inventor Cal E. Hardie

Cal E. Hardie 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).

  • Patent number: 5896246
    Abstract: An apparatus comprising a magnetic head suspension assembly (10) comprised of a rectangular portion (12), load beam (14) and flexure (16) fabricated from a silicon structure using the etching techniques of the integrated circuit fabrication industry. The magnetic head suspension assembly (10) has electrical leads (23) to a slider, a pre-amp circuit (25) and a microactuator (27) fabricated directly thereon. A system of providing a loading force passing to slider (50) comprises either a tapered base plate (40) adapted to be held by a horizontally oriented actuator arm or an actuator arm (60) having at least one angled receiving surface (62,64) for attachment to said suspension assembly.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: April 20, 1999
    Assignee: Seagate Technology, Inc.
    Inventors: Richard August Budde, Kevin Jon Schultz, Daniel E. Glumac, Patrick J. Ryan, Cal E. Hardie
  • Patent number: 5812343
    Abstract: A base plate is disclosed for swage or ball stake mounting a transducer carrying arm to a support arm. The base plate includes a flange and a tubular member or boss. The flange has a non-rectangular profile and first, second, third and fourth arms extending generally in first, second, third and fourth directions. Each of the arms of the flange defines a separate corner of a rectangular profile so that rectangular profile compatible equipment can be used with the base plate of the present invention. The non-rectangular profile of the flange fits within the defined rectangular profile such that the mass of the flange is reduced to thereby improve resonance, shock and access time performance of the disc drive.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: September 22, 1998
    Assignee: Seagate Technology, Inc.
    Inventors: Richard A. Budde, Cal E. Hardie
  • Patent number: 5711063
    Abstract: An apparatus comprising a magnetic head suspension assembly (10) comprised of a rectangular portion (12), load beam (14) and flexure (16) fabricated from a silicon structure using the etching techniques of the integrated circuit fabrication industry. Said magnetic head suspension assembly (10) having electrical leads (23) to a slider, a pre-amp circuit (25) and a microactuator (27) fabricated directly thereon. A system of providing a loading force passing to slider (50) comprising either a tapered base plate (40) adapted to be held by a horizontally oriented actuator arm or an actuator arm (60) having at least one angled receiving surface (62,64) for attachment to said suspension assembly.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: January 27, 1998
    Assignee: Seagate Technology, Inc.
    Inventors: Richard August Budde, Kevin Jon Schultz, Daniel E. Glumac, Patrick J. Ryan, Cal E. Hardie