The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2006
Filed:
Dec. 31, 2003
Vijay Kumar Garikipati, Eagan, MN (US);
Patrick L. Mcphail, Minneapolis, MN (US);
Shu Lam Sin, Hong Kong, HK;
Katsushi Isogawa, Eagan, MN (US);
Vijay Kumar Garikipati, Eagan, MN (US);
Patrick L. McPhail, Minneapolis, MN (US);
Shu Lam Sin, Hong Kong, HK;
Katsushi Isogawa, Eagan, MN (US);
Donaldson Company, Inc., Minneapolis, MN (US);
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.