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, 2016
Filed:
May. 12, 2011
Veli Kalayci, Farmington, MN (US);
Manpreet Phull, Eagan, MN (US);
Thomas Lundgren, Bloomington, MN (US);
Daniel Adamek, Bloomington, MN (US);
Veli Kalayci, Farmington, MN (US);
Manpreet Phull, Eagan, MN (US);
Thomas Lundgren, Bloomington, MN (US);
Daniel Adamek, Bloomington, MN (US);
Donaldson Company, Inc., Minneapolis, MN (US);
Abstract
Crankcase ventilation filter systems are described, along with components and selected features thereof. Example features include preferred use of a backpressure limiting valve regulation (regulator) arrangement; and, a vacuum limiting valve regulation (regulator) arrangement. An example embodiment is provided which use two filter cartridges and two drain arrangements. Another example is provided which uses a single cartridge. Example filter cartridges are depicted and described.