Grooved active and passive adsorbent filters
AssigneeGore Enterprise Holdings, Inc.
InventorsEdwin George Dauber, Earl R Ball, Thomas E. Finan, Darlene K. Gorton
Life of this patent
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Abstract
The invention relates to a device for filtering contaminants, such as particulates and vapor phase contaminants, from a confined environment such as electronic or optical devices susceptible to contamination (e.g. computer disk drives) by improving performance and possibly incorporating multiple filtration functions into a unitary filter. Filtration functions include a passive adsorbent assembly and can include a combination of inlet, or breather filter and adsorbent filter. Moreover, recirculation filter, diffusion tube, and outside mount functions can be added to the filter depending on desired functionality within the enclosure.
Claims66
An adsorbent assembly for removing contaminants within an enclosure comprising:
- a) an adhesive;
- b) an adsorbent media having a bottom surface adjacent to said adhesive, a top surface, and at least one side surface;
- and
- c) a filter media covering the adsorbent, wherein the filter media is adjacent to the top surface and at least one side surface of said adsorbent media and said adsorbent media includes at least one groove in the top surface of said adsorbent media.
An adsorbent breather assembly for removing contaminants within an enclosure having a fluid inlet/outlet port comprising:
- a) an adhesive;
- b) an adsorbent media having a bottom surface, a top surface, and at least one side surface, the adsorbent media in fluid communication with the fluid inlet/outlet port;
- and
- c) a filter media covering the adsorbent,
- wherein the filter media is adjacent to the top surface and at least one side surface of the adsorbent media and the adsorbent media includes at least one groove adjacent to the filter media.
A method of removing contaminants from an enclosure comprising the steps of:
- a) providing an enclosure defining a sealed volume and having a fluid inlet port;
- b) providing an adsorbent having a bottom surface adjacent to the enclosure, a top surface opposite the bottom surface and at least one side surface, the adsorbent in fluid communication with the fluid inlet port and the sealed volume;
- and
- c) covering at least the top surface and a side surface of the adsorbent with a filter media,
- wherein the adsorbent includes at least one groove adjacent to the filter media.
An adsorbent assembly for removing contaminants within an enclosure comprising:
- a) an adhesive;
- b) an adsorbent media having a bottom surface adjacent to said adhesive, a top surface opposite the bottom surface, and at least one side surface;
- and
- c) a filter media adjacent to the top surface and covering the adsorbent, wherein at least one side surface of said adsorbent media media includes at least one groove in the side surface of said adsorbent media.
An adsorbent assembly for removing contaminants within an enclosure comprising:
- a) an adhesive;
- b) an adsorbent media having a bottom surface adjacent to said adhesive, a top surface opposite the bottom surface, and at least one side surface;
- said adsorbent media comprising a first layer having at least one groove and a second layer adjacent to the first layer, the first and second layers positioned such that the at least one groove of the first layer is adjacent to the second layer,
- c) a filter media adjacent to the top surface of said adsorbent media.
An adsorbent breather assembly for removing contaminants within an enclosure having a fluid inlet/outlet port comprising:
- a) an adhesive;
- b) an adsorbent media comprising two or more layers, said media having a bottom surface, a top surface, and at least one side surface, the adsorbent media in fluid communication with the fluid inlet/outlet port;
- and
- c) a filter media covering the adsorbent adjacent to the top surface and at least one side surface of the adsorbent media and said adsorbent media includes a first layer having at least one groove and a second layer adjacent to the first grooved adsorbent layer, the first and second adsorbent layers positioned such that the at least one groove of the first layer is adjacent to the second layer.
Dependencies are inferred from the claim text.