公开(公告)号：DE3276209D1

公开(公告)日：1987-06-04

申请号：DE3276209

申请日：1982-11-30

Applicant: IBM

Inventor： RIGBEY LEONARD JOHN ,  MACWILLIAMS DAVID

IPC: B65G11/00 ,  B65G11/02 ,  H05K13/04

公开(公告)号：NO150099C

公开(公告)日：1984-08-22

申请号：NO773305

申请日：1977-09-27

Applicant: IBM

Inventor： HATCHETT MICHAEL ROBERT ,  RIGBEY LEONARD JOHN

IPC: G11B23/033 ,  G11B17/32 ,  G11B25/04 ,  G11B5/016

公开(公告)号：MX143614A

公开(公告)日：1981-06-10

申请号：MX17076977

申请日：1977-09-30

Applicant: IBM

Inventor： HATCHETT MICHAEL ROBERT ,  RIGBEY LEONARD JOHN

IPC: G11B23/033 ,  G11B17/32 ,  G11B25/04 ,  G11B11/00

公开(公告)号：CH621644A5

公开(公告)日：1981-02-13

申请号：CH841777

申请日：1977-07-07

Applicant: IBM

Inventor： HATCHETT MICHAEL ROBERT ,  RIGBEY LEONARD JOHN

IPC: G11B23/033 ,  G11B17/32 ,  G11B25/04

公开(公告)号：NO140574C

公开(公告)日：1979-09-26

申请号：NO78372

申请日：1972-03-10

Applicant: IBM

Inventor： CUZNER DAVID EVERARD ,  DODMAN CHARLES OWEN REARDON ,  HEATH JOHN STEWARD ,  RIGBEY LEONARD JOHN ,  CROUCH HOWARD STANLEY ,  GEORGE IAN CHARLES

IPC: G11B5/48 ,  G11B5/55 ,  G11B17/028 ,  G11B23/02 ,  G11B23/50 ,  H02K41/035 ,  G11B25/04 ,  G11B21/16

Abstract: A magnetic disc apparatus including a sealed module which encloses magnetic discs, magnetic heads attached to head arm assemblies, an electromagnetic actuator for positioning the magnetic heads on the head arm assemblies, and a drive spindle on which the discs are seated. All control of the positioning of the head arm assembly, the operation of the electromagnetic actuator and the read write function being provided by electrical signals communicated between the file housing and the sealed module. A drive motor within the file housing is coupled to the enclosed spindle, which extends from the module while maintaining the module seal, for providing only rotary motion to the discs attached to the spindle.

公开(公告)号：NO773305A

公开(公告)日：1978-03-31

申请号：NO773305

申请日：1977-09-27

Applicant: IBM

Inventor： HATCHETT MICHAEL ROBERT ,  RIGBEY LEONARD JOHN

IPC: G11B23/033 ,  G11B17/32 ,  G11B25/04 ,  G11B

CPC classification number: G11B17/32

公开(公告)号：DE2623572A1

公开(公告)日：1976-12-23

申请号：DE2623572

申请日：1976-05-26

Applicant: IBM

Inventor： RIGBEY LEONARD JOHN ,  WALLIS CHRISTOPHER NORMAN

IPC: G11B21/02 ,  G11B5/55 ,  G11B21/24 ,  G11B5/012