Patents by Inventor Gale A. Jallen

Gale A. Jallen 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).

  • Self bucking servo transducer
    Patent number: 5461528
    Abstract: A servo head in a disc file data storage system includes a servo transducer and a coil which are connected so that noise induced by a nearby writing data head cancels. The servo transducer, mounted on a slider, reads information stored on a servo disc. The coil, also mounted on the slider, is connected to the servo transducer to produce an output signal so that noise signals induced in the servo transducer by operation of the data head tend to be canceled by noise signals induced in the coil by operation of the data head.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: October 24, 1995
    Assignee: Seagate Technology, Inc.
    Inventors: Beat G. Keel, Gale Jallen, Paul A. Jallen, Lance E. Stover, Halden W. Larson
  • Bubble memory bias field structure
    Patent number: 4692898
    Abstract: A bias magnet for a bubble memory device is comprised of a single material low permeability magnet contoured to enhance the magnetic field in the central area of the magnet and is adapted to be slightly larger than the bubble memory chip and in thermal contact therewith, the entire bubble memory chip and bias magnet structure to be surrounded by the rotating magnetic field drive coil structure.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: September 8, 1987
    Assignee: Control Data Corp.
    Inventors: Gale A. Jallen, Gene P. Bonnie
  • Bubble memory bias field structure
    Patent number: 4530072
    Abstract: In a bubble memory package, a contoured, shaped magnet and filler plate combination is provided to shape the magnetic field in a uniform fashion to prevent the loss of magnetic flux density which normally tends to occur in the center of the magnet area of a planar, uniformly thick magnet.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: July 16, 1985
    Assignee: Control Data Corporation
    Inventor: Gale A. Jallen
  • Speed tolerant alternator system for wind or hydraulic power generation
    Patent number: 4461957
    Abstract: A wind electric generator employs a freewheeling clutch and an induction generator having several synchronous speeds. By selecting the synchronous speed as a function of the ambient wind speed, the generator can be made to operate more efficiently and without overloading. The freewheeling clutch which connects the generator to the wind turbine prevents the generator from acting as a motor when connected to a power grid, and wasting energy in turning the wind turbine.
    Type: Grant
    Filed: June 17, 1982
    Date of Patent: July 24, 1984
    Assignee: Control Data Corporation
    Inventor: Gale A. Jallen