Patent Number: 6,168,651

Title: Filter assembly with shaped adsorbent article; and devices and methods of use

Abstract: A filter assembly includes a shaped adsorbent article disposed in a housing. The shaped adsorbent article has one or more projections extending from a surface of the article toward the housing to provide for flow of fluid between the shaped adsorbent article and the housing. The filter assembly may optionally include a diffiusion channel for additional filtering and/or one or more porous polymer films disposed over inlet or outlet openings in the housing to reduce or prevent particulate contamination. The filter assembly may be used in a device, such as a computer disk drive, to filter a fluid, such as air, within and/or entering or exiting the device.

Inventors: Tuma; Daniel L. (St. Paul, MN), Dahlgren; Andrew C. (Discovery Bay, HK), Garikipati; Vijay (Plymouth, MN), Logan; Randy J. (St. Paul, MN)

Assignee: Donaldson Company, Inc.

International Classification: B01D 53/04 (20060101); B01D 53/26 (20060101); B01J 20/28 (20060101); G11B 33/14 (20060101); B01D 053/04 ()

Expiration Date: 01/02/2018