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    ACTUATOR MECHANISM FOR DISK STORAGE APPARATUS
    1.
    发明专利
    ACTUATOR MECHANISM FOR DISK STORAGE APPARATUS 未知

    公开(公告)号：CA1078513A

    公开(公告)日：1980-05-27

    申请号：CA255203

    申请日：1976-06-18

    Applicant: IBM

    Inventor： RIGBEY LEONARD J ,  WALLIS CHRISTOPHER N

    IPC: G11B21/02 ,  G11B5/55 ,  G11B21/24 ,  G11B5/54

    Abstract: ACTUATOR MECHANISM FOR DISK STORAGE APPARATUS The invention relates to an actuator mechanism suitable for positioning a recording head over the surface of a recording disk. The actuator consists of a planar coil etched from a copper laminated board. The board is pivoted at one end and carries a recording head supported on an extended arm. Magnets produce a flux perpendicular to the plane of the laminate so that current through the coil produces limited motion of the board about its pivot. The actuator mechanism is located in relation to the disk so that the limited motion of the board moves the head over the disk from one transducing position to another. The mechanism is included in a closed loop servo system which derives position information from servo tracks on the disk and enables track access and track following operations to be conducted.

    5.
    发明专利
    未知

    公开(公告)号：FR2396381A1

    公开(公告)日：1979-01-26

    申请号：FR7814826

    申请日：1978-05-12

    Applicant: IBM

    Inventor： HATCHETT MICHAEL R ,  RIGBEY LEONARD J

    IPC: G11B17/022 ,  G11B23/033 ,  G11B23/04

    Abstract: A record disk cartridge has a single internal shutter for opening and closing a head access port adjacent a spindle access member in one wall. A further aperture allows the shutter to be actuated to an open position as the cartridge is moved into a playing position. The shutter also brakes the disk against movement when the cartridge apertures are closed. A magnetic coupling enables rotation of the disk inside the cartridge.

    FLEXIBLE DISK CARTRIDGE
    6.
    发明专利
    FLEXIBLE DISK CARTRIDGE 未知

    公开(公告)号：CA1114500A

    公开(公告)日：1981-12-15

    申请号：CA300787

    申请日：1978-04-10

    Applicant: IBM

    Inventor： HATCHETT MICHAEL R ,  RIGBEY LEONARD J

    IPC: G11B17/022 ,  G11B23/033 ,  G11B23/02

    Abstract: A disk cartridge containing a flexible record disk has a single internal spring loaded shutter for opening and closing a head access port adjacent a spindle access member in one face of the cartridge. A further aperture allows the shutter to be actuated to an open position as the cartridge is loaded into a playing position on a disk drive. The shutter also holds the disk against movement within the cartridge when it is not in use on the drive.

    7.
    发明专利
    未知

    公开(公告)号：FR2435098A1

    公开(公告)日：1980-03-28

    申请号：FR7825569

    申请日：1978-08-29

    Applicant: IBM

    Inventor： RIGBEY LEONARD J ,  PASCUAL RAPHAEL ,  COX ALLEN R

    IPC: G11B5/60 ,  G11B17/32 ,  G11B21/16

    Abstract: In a recorder having a transducer with a gap which coacts with a flexible medium to record and/or reproduce data, an endless groove is positioned on the transducer to circumscribe the gap.

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