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:
Feb. 13, 2018
Filed:
Apr. 01, 2015
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Ben Dominick Williams, Chatham, CA;
David William Balsdon, Chatham, CA;
Robert Douglas Jefford, Chatham, CA;
David Rene Forgeron, Chatham, CA;
Brian Gordon Woods, Chatham, CA;
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Abstract
A valve assembly providing flow control between a fuel tank and a carbon canister, which includes two valves providing two different flow paths, where the first valve provides active vacuum relief along the first flow path, and the second valve provides passive vacuum relief along the second flow path. A reservoir is added to the cap which is common for both flow paths. The second valve has a sealing valve member and a biasable member that passively relieves fuel tank vacuum pressure at a predetermined vacuum level.