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. 14, 2010
Filed:
Dec. 22, 2008
Applicants:
Mark V. Holzmann, Stoughton, WI (US);
Ryan W. Rutzinski, Waukesha, WI (US);
Michael J. Conner, Stoughton, WI (US);
Christopher E. Holm, Madison, WI (US);
Bradley T. Clark, Janesville, WI (US);
Inventors:
Mark V. Holzmann, Stoughton, WI (US);
Ryan W. Rutzinski, Waukesha, WI (US);
Michael J. Conner, Stoughton, WI (US);
Christopher E. Holm, Madison, WI (US);
Bradley T. Clark, Janesville, WI (US);
Assignee:
Cummins Filtration IP, Inc., Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
F01M 13/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A crankcase ventilation system for an internal combustion engine has an engine driven pump pumping scavenged separated oil from the oil outlet of an air-oil separator to the crankcase, preferably using engine generated pulsating oscillatory positive and negative relative pressure pulses.