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:
Dec. 31, 2013
Filed:
Jun. 18, 2010
Applicants:
Thomas DE Paepe, Nossegem, BE;
Gert Willems, Wilsele, BE;
Inventors:
Thomas De Paepe, Nossegem, BE;
Gert Willems, Wilsele, BE;
Assignee:
Donaldson Company, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pressure control valve assembly, (i.e. pressure regulator valve assembly) is described which is configured for at least a two stage operation including: a first stage in which flow is allowed through two sections of the valve frame; and, a second stage in which the valve member is biased against one of the sections of the valve frame and not the second section. Specific example features and configurations are depicted and described. A crankcase ventilation filter assembly including the pressure control valve assembly is described.