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:
Jun. 07, 2011
Filed:
Dec. 22, 2009
Applicants:
Enrico Greco, Villa Poma, IT;
Fabrizio Buratto, Sustinente, IT;
Mauro Cantoni, Mantova, IT;
Christian Guernieri, Revere, IT;
John F. Connelly, Chanhassen, MN (US);
John R. Hacker, Minneapolis, MN (US);
Inventors:
Enrico Greco, Villa Poma, IT;
Fabrizio Buratto, Sustinente, IT;
Mauro Cantoni, Mantova, IT;
Christian Guernieri, Revere, IT;
John F. Connelly, Chanhassen, MN (US);
John R. Hacker, Minneapolis, MN (US);
Assignee:
Donaldson Company, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 35/147 (2006.01); B01D 35/153 (2006.01);
U.S. Cl.
CPC ...
Abstract
A liquid filter arrangement is provided, as well as methods of assembly and use. The liquid filter arrangement includes an anti-drain back valve assembly therein. Advantageous features, relating to a preferred filter cartridge and preferred anti-drain back valve arrangement, are provided.