公开(公告)号：FI62428C

公开(公告)日：1982-12-10

申请号：FI44772

申请日：1972-02-18

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 ,  G11B21/08

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：FI62428B

公开(公告)日：1982-08-31

申请号：FI44772

申请日：1972-02-18

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 ,  G11B21/08

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：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：NO140574B

公开(公告)日：1979-06-18

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：DK136557B

公开(公告)日：1977-10-24

申请号：DK113072

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 ,  G11B5/012

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.