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    4.
    发明专利
    未知

    公开(公告)号：DE69318605T2

    公开(公告)日：1999-02-04

    申请号：DE69318605

    申请日：1993-03-02

    Applicant: IBM

    Inventor： HATCHETT MICHAEL ROBERT ,  HEATH JOHN STEWART ,  LEE HUBERT CHEW ,  ROW EUN KYOUNG ,  SPENCER ROGER DALE ,  WORKMAN MICHAEL LEE

    IPC: G11B20/18 ,  G11B25/04 ,  G11B33/08 ,  G11B33/12 ,  G11B33/14 ,  G11B33/04

    Abstract: A multiple disk drive assembly (10) in a 5 1/4 inch disk drive form factor having two 3 1/2 inch disk drive form factor head-disk assemblies (HDA) (11, 13) internally mounted on a rigid frame (15) and accessible via a common industry-standard interface connector (55) is provided. Both the interface and power connectors (55 and 53 respectively) and the frame mounting hole patterns are industry standard to provide interchangeability with 5 1/4 inch form factor disk drives provided by manufacturers for use in computer systems. A single electronics controller board (17) is shared by both HDAs and is mounted on the bottom side of the frame below the HDAs. The controller board may implement SCSI or IPI interfaces in either differential or single-ended versions. A spring vibration damper (47) is utilized to minimize external vibration and shock effects on the HDAs and also to minimize the effects of vibration internally generated by one HDA on the adjacent HDA. The assembly is fully enclosed with metal top and bottom covers (19 and 21 respectively) to provide separate enclosures for the HDAs and the controller board cooling and to provide EMC and RFI protection.

    5.
    发明专利
    未知

    公开(公告)号：AT166486T

    公开(公告)日：1998-06-15

    申请号：AT93301584

    申请日：1993-03-02

    Applicant: IBM

    Inventor： HATCHETT MICHAEL ROBERT ,  HEATH JOHN STEWART ,  LEE HUBERT CHEW ,  ROW EUN KYOUNG ,  SPENCER ROGER DALE ,  WORKMAN MICHAEL LEE

    IPC: G11B20/18 ,  G11B25/04 ,  G11B33/08 ,  G11B33/12 ,  G11B33/14 ,  G11B33/04

    Abstract: A multiple disk drive assembly (10) in a 5 1/4 inch disk drive form factor having two 3 1/2 inch disk drive form factor head-disk assemblies (HDA) (11, 13) internally mounted on a rigid frame (15) and accessible via a common industry-standard interface connector (55) is provided. Both the interface and power connectors (55 and 53 respectively) and the frame mounting hole patterns are industry standard to provide interchangeability with 5 1/4 inch form factor disk drives provided by manufacturers for use in computer systems. A single electronics controller board (17) is shared by both HDAs and is mounted on the bottom side of the frame below the HDAs. The controller board may implement SCSI or IPI interfaces in either differential or single-ended versions. A spring vibration damper (47) is utilized to minimize external vibration and shock effects on the HDAs and also to minimize the effects of vibration internally generated by one HDA on the adjacent HDA. The assembly is fully enclosed with metal top and bottom covers (19 and 21 respectively) to provide separate enclosures for the HDAs and the controller board cooling and to provide EMC and RFI protection.

    MECHANISM FOR CUTTING SINGLE THICKNESS PAPER OR LIKE SHEET MATERIAL AND APPARATUS INCLUDING SUCH MECHANISM
    7.
    发明专利
    MECHANISM FOR CUTTING SINGLE THICKNESS PAPER OR LIKE SHEET MATERIAL AND APPARATUS INCLUDING SUCH MECHANISM 未知

    公开(公告)号：DE3273601D1

    公开(公告)日：1986-11-06

    申请号：DE3273601

    申请日：1982-12-10

    Applicant: IBM

    Inventor： FARRAN JOHN ,  HATCHETT MICHAEL ROBERT ,  HEATH JOHN STANLEY

    IPC: B26D1/30 ,  B26D5/22 ,  B26D7/14 ,  B26D7/26

    Abstract: A paper shear mechanism consists of a guillotine having a fixed blade and a pivoted blade. The cutting edge of the fixed blade is concavely curved so that paper to be cut as fed between the blades assumes a corresponding curvature and is given some longitudinal rigidity during the cutting operation. The pivoted blade is of composite structure to simplify the manufacturing process and thus reduce cost. Essentially, it includes a cutting section stamped from flexible sheet steel shim to provide a cutting edge with the desired nip angle. The flexible steel section is spot welded to a mild steel backing member with an elongated spring member sandwiched between the two. The spring member has a number of spring teeth which exert a force along the length of the flexible section to deflect its cutting edge laterally towards the fixed blade. By this means contact between the cutting edges is maintained along the length of a cut and relief between the facing surfaces of the two blades is provided. A sheet feeding apparatus with a correspondingly curved cross-section to the fixed blade feeds paper web to the shear mechanism. A single motor serves to feed paper during forward rotation and to operate the paper shear during reverse rotation.

    8.
    发明专利
    未知

    公开(公告)号：DE2853216A1

    公开(公告)日：1979-07-05

    申请号：DE2853216

    申请日：1978-12-09

    Applicant: IBM

    Inventor： HATCHETT MICHAEL ROBERT

    IPC: G11B17/03 ,  G11B15/675 ,  G11B17/028 ,  G11B17/035 ,  G11B17/04 ,  G11B17/043 ,  G11B17/00 ,  G11B5/12

    Abstract: A disk, tape, etc. record member is contained in a cartridge or cassette. A cartridge type record player has a movable receptacle for receiving the cartridge. The receptacle has two stable and one momentary positions. A center stable position is a load position wherein the cartridge can be inserted into the receptacle. A second stable position, on one side of the center position, is a play position wherein a transducer is in operative association with the second member. The third and momentary position on a second side of the center stable position causes a spontaneous ejection of the cartridge from the receptacle. Usually, from the eject position, the receptacle returns to the center stable position.

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