Gas separation – Combined or convertible – Involving communication receiving or transmitting apparatus
Reexamination Certificate
2006-10-24
2006-10-24
Lawrence, Frank M. (Department: 1724)
Gas separation
Combined or convertible
Involving communication receiving or transmitting apparatus
C096S139000, C360S097020
Reexamination Certificate
active
07125433
ABSTRACT:
A multiple diffusion channel filter assembly is disclosed. The filter assembly provides filtration of air entering and exiting an electronic enclosure through a breather hole. In one implementation, the filter assembly contains a housing with an adsorbent component and a first diffusion channel and a second diffusion channel. In another implementation, the filter assembly contains a first layer and a second layer which surround an adsorbent component and a first and a second diffusion channel that are in fluid communication with the interior space defined by the first and second layers. In yet another implementation, the invention, includes a filter accessory containing a diffusion channel configured to work in conjunction with a separate filter assembly thereby adding an additional diffusion channel to the existing design.
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Garikipati Vijay Kumar
Isogawa Katsushi
McPhail Patrick L.
Sin Shu Lam
Donaldson & Company, Inc.
Lawrence Frank M.
Pauly DeVries Smith & Deffner, LLC.
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