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. 19, 2020
Filed:
Feb. 13, 2015
Applicant:
Donaldson Company, Inc., Minneapolis, MN (US);
Inventor:
Douglas Jon Nagel, Stout, IA (US);
Assignee:
Donaldson Company, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); B60T 17/00 (2006.01);
U.S. Cl.
CPC ...
B01D 46/0086 (2013.01); B01D 46/0087 (2013.01); B60T 17/002 (2013.01);
Abstract
An air brake filter assembly and methods are shown. Example configurations include a filter lock that holds an indicator in an actuated position after a filter has become clogged. Example configurations may also include a bypass pathway to allow air to bypass the filter when the filter is clogged.