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Internally replenished enclosure

A shell and supplementary gas technology, applied in the layout of structural components in carrier equipment, recording carrier structural components, reducing physical parameters of the carrier, etc., can solve the problems of unsatisfactory size, weight and complexity

Inactive Publication Date: 2012-09-05
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While using this device may not require opening the housing or providing a fill port, the size, weight and complexity of this device is not ideal in many applications

Method used

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Examples

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example

[0054] The following specific but non-limiting examples serve to illustrate the invention. All percentages are by weight unless otherwise indicated.

[0055] uncoated air bubbles

[0056] Bubbles obtained from the 3M Company under the trademark Scotchlite Glass Bubbles S60 / 10,000 were used. The glass is reported to have 70-80% SiO 2 , 8-15% CaO, 3-8% Na2O, and 2-6% B 2 o 3 . Average cell density was reported as 0.60 + / - 0.02 g / cc, median diameter (i.e., 50 th percentile) was 30 microns, with an average wall thickness of 1.3 microns and an internal diameter of 28 microns.

[0057] Aluminum coated bubbles

[0058] Samples of uncoated bubbles were coated with a thin (approximately 1000 Angstroms) layer of aluminum. Agitation of bubbles when coating with metal atom flux from a sputtering source. A thin film of aluminum oxide was then deposited onto the aluminum layer via reactive sputter deposition involving the simultaneous addition of oxygen during sputtering of the alu...

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Abstract

Internally replenished gas-containing enclosures and methods of internally replenishing an enclosure (100) are described. The replenishing gas source (200) comprises a gas contained within a permeable membrane (210) .

Description

technical field [0001] The present invention relates to an internally replenished gas containment enclosure and a method of internally replenishing the enclosure. The invention is particularly useful in computer hard disk storage devices. Background technique [0002] Gas containment enclosures are advantageous in many applications. Typically, the housing is formed by joining two or more parts using, for example, mechanical fasteners, welding or adhesives. One or more components are disposed in an enclosure, and the enclosure is filled with a gas or gases such as an inert gas. The completed enclosure houses the gaseous environment and one or more components protected by the enclosure. [0003] For example, some hard drives are protected in an enclosure. The enclosure itself is typically located in an air environment, while the interior of the enclosure is filled with an inert gas such as helium. Typically, the helium environment in a hard drive enclosure reduces the ene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B33/14G11B17/02G11B33/12
CPCG11B33/1466G11B33/1413G11B33/1486G11B33/121
Inventor 埃伦·伯茨-库珀罗伯特·C·菲策尔丹尼尔·B·小彭德格拉斯
Owner 3M INNOVATIVE PROPERTIES CO