Granted Patent B2

US 8,248,724 · App. 12/488,501 · Granted Aug 21, 2012

Abstract

Claims (32)

1. A method for re-injecting low density gas into a disk drive having a hermetically sealed disk enclosure, said method comprising:

providing a disk drive including a hermetically sealed disk enclosure;

re-injecting low density gas through a hole penetrating said hermetically sealed disk enclosure from an exterior of said disk drive to an interior of said disk drive;

covering said hole with a sealing label including a metal layer and an adhesive layer, wherein said hole is created in an outer surface of said hermetically sealed disk enclosure and said low density gas is re-injected through said hole, wherein said disk enclosure comprises:

a base, an inner cover secured to said base, and an outer cover joined to said base and covering said inner cover;

said disk enclosure has a re-injection part where a gap between said outer cover and an opposing surface is larger than a periphery of said re-injection part; and

said hole for re-injecting said low density gas is created within said re-injection part on said outer cover;

wherein said inner cover is secured to said base with a gasket interposed between said inner cover and said base;

said re-injection part is disposed inside the periphery of said gasket and includes a depression formed in said inner cover; and

said hole for re-injecting said low density gas is created at a location on said outer cover opposite said depression.

2. The method according to claim 1 , wherein a protection label is attached to said outer surface of said disk enclosure; and

said hole is created at a location from which said protection label is removed.

3. The method according to claim 1 , wherein said low density gas is re-injected through said hole into said disk enclosure through a filter placed inside said disk enclosure.

4. The method according to claim 3 , wherein

said hole is provided in said outer cover; and

said low density gas is re-injected into said base through said hole in said outer cover, a previously formed hole in said inner cover, and said filter disposed on the inside of said inner cover at a location overlapping said hole in said inner cover.

5. The method according to claim 1 , wherein a diameter of said hole is less than or equal to 2.0 mm.

6. The method according to claim 5 , wherein a diameter of said sealing label is greater than or equal to 10 mm.

7. The method according to claim 1 , wherein said hole is previously formed;

said hole is covered by a sealing label comprising a metal thin film and an adhesive layer;

said sealing label is removed and low density gas is re-injected through said hole; and

said hole is covered with a new sealing label after said re-injection of said low density gas.

8. A method for re-injecting low density gas into a disk drive having a hermetically sealed disk enclosure, said method comprising:

providing a disk drive including a hermetically sealed disk enclosure;

re-injecting low density gas through a hole penetrating said hermetically sealed disk enclosure from an exterior of said disk drive to an interior of said disk drive;

covering said hole with a sealing label including a metal layer and an adhesive layer, wherein said hole is created in an outer surface of said hermetically sealed disk enclosure and said low density gas is re-injected through said hole, wherein said disk enclosure comprises:

a base, an inner cover secured to said base, and an outer cover joined to said base and covering said inner cover;

said disk enclosure has a re-injection part where a gap between said outer cover and an opposing surface is larger than a periphery of said re-injection part; and

said hole for re-injecting said low density gas is created within said re-injection part on said outer cover;

wherein said inner cover is secured to said base with a gasket interposed between said inner cover and said base;

said re-injection part is disposed outside the periphery of said gasket; and

said hole for re-injecting said low density gas is created at a location opposite a portion of said inner cover including a hole formed in said inner cover.

Assignments (6)