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:
May. 06, 2008
Filed:
Jul. 11, 2005
Applicant:
Katsushi Isogawa, Eagan, MN (US);
Inventor:
Katsushi Isogawa, Eagan, MN (US);
Assignee:
Donaldson Company, Inc., Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B03C 3/155 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to an improved electronic enclosure filter for very small spaces, such as small disk drives. The filter includes an exposed electrostatic layer that functions to catch and retain particulate contamination within the filter. The filter can be placed within disk drive enclosures such that the electrostatic layer is in very close proximity to the rotating disk without causing excessive turbulence. The close proximity of the electrostatic layer to the disk creates relatively high levels of airflow over the electrostatic layer.