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:
Aug. 23, 2011
Filed:
Nov. 06, 2007
Ismail Bagci, Cookeville, TN (US);
Chad Brummitt, Algood, TN (US);
Abby True-dahl, Sparta, TN (US);
Wassem Abdalla, Cookeville, TN (US);
Yiming Zhang, Cookeville, TN (US);
Ismail Bagci, Cookeville, TN (US);
Chad Brummitt, Algood, TN (US);
Abby True-Dahl, Sparta, TN (US);
Wassem Abdalla, Cookeville, TN (US);
Yiming Zhang, Cookeville, TN (US);
Cummins Filtration IP, Inc., Minneapolis, MN (US);
Abstract
A 'no filter, no run' filtration system that is designed to verify that an appropriate filter cartridge is installed. A flow control sleeve is provided on a standpipe to control the flow of fluid, for example fuel, into the standpipe. The sleeve can be axially moveable between closed and open positions, with one or more members on an installed filter cartridge designed to release the sleeve to permit the movement from the closed position to the open position to allow fluid flow. A spring acts on the sleeve to bias the sleeve back to the closed position upon removal of the filter cartridge. The sleeve can also be designed without axial movement, but nonetheless is configured to be opened and closed to control fluid flow into the standpipe.