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:
May. 22, 2001
Filed:
Jul. 20, 1998
Bradley N. Kippe, Holly, MI (US);
Barry L. Thater, Oxford, MI (US);
Saturn Electronics & Engineering, Inc., Auburn Hills, MI (US);
Abstract
A one-piece check valve is provided for a fuel filler pipe connected to a vehicle fuel tank to provide a fuel filling passage communicated to the fuel tank. The check valve comprises a thin sheet of material shaped to comprise a mounting portion, a flapper valve and an intermediate connecting portion that connects the flapper valve and the mounting portion with the connecting portion being contoured so as to normally impart a spring bias to the flapper valve to close off the fuel filling passage. An elastomeric seal is fastened on the flapper valve or on the fill pipe in a manner to provide a liquid fuel and vapor tight seal when the flapper valve is in a closed position relative to the fuel filling passage. The flapper valve is opened when fuel is introduced into the fuel filler pipe to permit fueling of said tank.