Patents Represented by Attorney Charles M. Carman

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  • Bearing structure
    Patent number: 4043612
    Abstract: A spiral-groove self-pressurizing bearing structure is provided with a magnetic lubricant and magnetic means to retain the lubricant in the bearing at rest. During operation, the spiral grooves pressurize and distribute the lubricant within the bearing structure, and the magnetic retention means prevents entrainment of air into the bearing, and consequent loss of lubricating action.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: August 23, 1977
    Assignee: Ampex Corporation
    Inventor: Frederic K. Orcutt
  • Tape guiding structure
    Patent number: 4040575
    Abstract: For guiding tape between a reference planar path and a helical path that is axially tilted with respect to the reference plane, there is provided a single right-cylindrical guide having normal flanges that engage the tape edges with uniform pressure throughout the zone of contact.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: August 9, 1977
    Assignee: Ampex Corporation
    Inventor: Dennis M. Ryan