Patent EP0218851A2 successfully refreshed from Google Patents.
EP0218851A2
Expired / Lapsed
EP
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A disk enclosure
Assignee: International Business Machines Corp
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Filing: 1986-08-19
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Granted: —
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Expires: 2006-08-19
Abstract
Abstract An enclosure for a rigid disk data file is shown which includes a base casting (6) and a cover (24) that interface along a planar surface that is not perpendicular to the axis of the spindle supporting the data disks (8). The base casting (6) at one side extends axially along the disk stack and has the transducer positioning actuators mounted through openings therein. At the opposite side, the disk stack is fully exposed to permit easy access to the disk surface for procedures such as servo writing during manufacture of the drive. This structure makes possible concurrent operation of the product heads and servo writing heads.
Inventors
- 👤 Darrell Eugene Bratvold
- 👤 Richard William Luoma
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 15:24
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/04; G11B25/043; G11B17/00; G11B17/02; G11B17/038; G11B33/00; G11B33/14
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
A head-disk enclosure assembly for a rigid disk drive which includes a plurality of disks mounted on a spindle for rotation in unison about the axis of the spindle said assembly being characterized in that it includes : a base on which said spindle is mounted for rotation about said spindle axis; said base extending axially along one side of said disks and presenting means for mounting an actuator carrying transducer heads; a cover member that cooperates with said base along a continuous closed planar interface surface to enclose said plurality of disks, said planar interface being nonperpendicular with respect to said spindle axis, whereby radial access to said disks diametrically opposite said actuator mounting means is unobstructed when said cover member is removed; and securing means for attaching said cover member to said base.
Claim 2
Dependent Claim
135 words
A head-disk enclosure assembly for a rigid disk drive which includes a plurality of disks mounted on a spindle for rotation in unison about the axis of the spindle said assembly being characterized in that it includes : a base on which said spindle is mounted for rotation about said spindle axis; said base extending axially along one side of said disks and presenting means for mounting an actuator carrying transducer heads; a cover member that cooperates with said base along a continuous closed planar interface surface to enclose said plurality of disks, said planar interface being nonperpendicular with respect to said spindle axis, whereby radial access to said disks diametrically opposite said actuator mounting means is unobstructed when said cover member is removed; and securing means for attaching said cover member to said base.
Claim 3
Dependent Claim
33 words
The head-disk enclosure assembly of claim 1 further comprising gasket means that extends in a continuous closed configuration along said planar interface between said base and said cover and is compressively retained therebetween.
Claim 4
Dependent Claim
33 words
The head disk enclosure according to claim 1 or 2 wherein said base comprises a casting which at said one side has an opening therethrough for mounting the said actuator carrying transducer heads.
Claim 5
Dependent Claim
34 words
The head-disk enclosure assembly according to claim 1, 2 or 3 wherein said base includes flange portions along the outer margins of said planar interface which confine said gasket means and said cover member.
Claim 6
Dependent Claim
169 words
A head-disk enclosure assembly for a rigid disk drive which includes a plurality of disks mounted on a spindle for rotation in unison about the axis of such spindle, characterized in that it comprises : a base upon which said spindle is mounted for rotation about the said axis of said spindle; said base extending axially along one side of said plurality of disks and presenting a planar, continuous closed interface surface surrounding said disks with said interface surface at said one side being above the plane of the uppermost disk surface and at the side diametrically opposite said one side being below the plane of the lowermost disk surface; a cover member that cooperates with said base along said planar interface surface to enclose said plurality of disks, said interface surface being nonperpendicular with respect to said spindle axis, whereby radial access to said disks diametrically opposite said one side is unobstructed when said cove member is removed; and securing means for connecting said cover to said base.
Claim 7
Dependent Claim
169 words
A head-disk enclosure assembly for a rigid disk drive which includes a plurality of disks mounted on a spindle for rotation in unison about the axis of such spindle, characterized in that it comprises : a base upon which said spindle is mounted for rotation about the said axis of said spindle; said base extending axially along one side of said plurality of disks and presenting a planar, continuous closed interface surface surrounding said disks with said interface surface at said one side being above the plane of the uppermost disk surface and at the side diametrically opposite said one side being below the plane of the lowermost disk surface; a cover member that cooperates with said base along said planar interface surface to enclose said plurality of disks, said interface surface being nonperpendicular with respect to said spindle axis, whereby radial access to said disks diametrically opposite said one side is unobstructed when said cove member is removed; and securing means for connecting said cover to said base.
Claim 8
Dependent Claim
39 words
The head-disk enclosure assembly of claim 5 wherein said base is comprised of a configuration which at said one side has an opening therethrough for receiving said actuator and mounting means adjacent said opening for securing said actuator thereto.
Claim 9
Dependent Claim
34 words
The head-disk enclosure assembly of claim 6 further comprising gasket means that extends in a continuous closed configuration along said planar interface surface between said base and said cover and is compressively retained therebetween.
Claim 10
Dependent Claim
29 words
The head-disk enclosure assembly of claim 7 wherein said base includes flange portions along the margins of said interface surface which confine said gasket means and said cover member.
References Cited (Backward Citations)
No citation records indexed.
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