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US 7,095,584 B2Granted
Integrated chemical breather filter with high and low pressure surfaces
AssigneeDonaldson Company, Inc.
InventorRandy Jon Logan
Life of this patent
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Abstract
Filters and methods of using the filters, as well as assemblies having the filters are disclosed. The present invention includes a breather filter combined with an adsorbent filter in a single enclosure that utilizes pressure differentials within the housing of an operating data storage device to provide improved contaminant removal from the enclosure
Claims18
A filter, comprising:
- (a) a housing comprising a base, a top, and at least one sidewall extending from the base to the top, the housing defining a first chamber and a second chamber separate from the first chamber, the housing also defining an inlet port in fluid communication with the second chamber, the inlet port located in the base of the housing;
- (b) adsorbent media disposed within the first chamber of the housing;
- (c) filter media disposed within the second chamber of the housing;
- and
- (d) a porous membrane disposed over at least a portion of the first chamber and a porous membrane disposed over at least a portion an opening of the second chamber;
- wherein the filter media disposed in the second chamber is retained by a porous cover.
3 more elements
A data storage device assembly comprising:
- (a) an enclosure;
- (b) at least one disk rotatably mourned within the enclosure;
- and
- (c) a filter construction positioned within the enclosure, the filter construction comprising:
- (i) a housing comprising a base, a top, and at least one sidewall extending from the base to the top, the housing defining a first chamber and a second chamber separate from the first chamber, the housing also defining an inlet port for the second chamber, the inlet port located in the base of the housing;
- (ii) adsorbent media disposed within the first chamber of the housing;
- and
- (iii) filter media disposed within the second chamber of the housing,
- (iv) a porous membrane disposed over at least a portion of an opening in the first chamber;
- and a porous membrane disposed over at least a portion of the second chamber;
- and
- wherein the filter media disposed in the second chamber is retained by a porous cover.
9 more elements
A method for protecting an electronic device from contaminants, the method comprising:
- (a) positioning a filter construction inside an electronic device housing, the filter construction comprising:
- (i) a housing comprising a base, a top, and at least one sidewall extending from the base to the top, the housing defining a first chamber and a second chamber separate from the first chamber, a the housing also defining an inlet port for the second chamber, the inlet port located in the base of the housing;
- (ii) adsorbent media disposed within the first chamber of the housing;
- (iii) filter media disposed within the second chamber of the housing;
- and
- (b) removing contaminants using the filter media and adsorbent media;
- wherein the filter media disposed in the second chamber is retained by a porous cover.
4 more elements
Dependencies are inferred from the claim text.