Fermetically sealed disk file

• US 4,367,503 A
• Filed: 12/24/1980
• Issued: 01/04/1983
• Est. Priority Date: 12/24/1980
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Treseder, Robert C.
• Primary Examiner(s): Wolff, John H.
• Application Number:
  US06/219,794
• Time in Patent Office: 741 Days
• Field of Search: 360/98, 360/97, 360/99, 360/137, 360/133, 360/86
• US Class Current: 360/97.03
• CPC Class Codes: G11B 17/038 Centering or locking of a plurality of discs in a single cartridge
• CPC Class Codes: G11B 23/021 comprising means for reducing influence of physical parameters, e.g. temperature change, moisture combined with means for reconditioning or cleaning G11B23/507
• CPC Class Codes: G11B 23/0323 for disc-packs
• CPC Class Codes: G11B 33/121 the apparatus comprising a single recording/reproducing device

Abstract

A hermetically sealed, helium filled magnetic disk storage file is disclosed in which a thin walled container encloses the disk file. The container body is clamped between the baseplate of the file and an external mounting bracket which mounts the file to a frame so that the container "floats" relative to both the frame and the baseplate. A double-seamed visco-elastic seal is employed for attaching the cover of the container to the container body.

Claims

1. A hermetically sealed disk file comprising:

(a) a baseplate for mounting the major components of said disk file in fixed relationship to each other;

(b) a two-part thin walled container for completely enclosing said baseplate and said components of said disk file, said parts being hermetically sealed by a double-seamed viscoelastic seal; and

(b) means for mounting said baseplate to a frame while simultaneously mounting said thin walled container to said baseplate and in generally floating relationship to both said baseplate and said frame.

2. The combination recited in claim 1 further including a frame for supporting said baseplate.

3. The combination recited in claim 2 in which said disk file further includes helium gas disposed in said container at substantially atmospheric pressure.

4. The combination recited in claim 2 in which said mounting means includes a plurality of clamping devices, each of which includes a first and second member, one of which is selectably clampable to the other with a section of said container disposed therebetween, one of said members being attached to said baseplate and disposed internally of said container, said other member being disposed externally of said container and adapted to be connected to said frame.

5. The combination recited in claim 4 in which said second member has one end which is provided with a circular cross-section, said container includes a circumferential section provided with a corregation adapted to receive said one end of said member having said circular cross-section, said first member comprises two separate parts which together define an opening for receiving said convex corregation and said one end, and means for moving said two parts relative to each other to clamp said first member to said second member with said corregation disposed between said members.

6. The combination recited in claim 5 in which said container is mounted to said baseplate to provide two separate substantially independent compartments within said container.

7. The combination recited in claim 6 in which said file includes a plurality of magnetic disks which are supported for rotation by a disk spindle whose axis is normal to the plane of said baseplate and which is mounted in said baseplate.

8. The combination recited in claim 7 further including a transducer positioning mechanism mounted on said baseplate for positioning magnetic transducers in transducing relationship with said disks.

9. The combination recited in claim 8 further including means for feeding electrical connections to and from said major components through the wall of said container without affecting the hermetically sealed characteristics of said container.