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:
Jul. 10, 2001
Filed:
Dec. 10, 1999
Bradley N. Kippe, Holly, MI (US);
Emil Szlaga, Sterling Heights, MI (US);
Saturn Electronics & Engineering, Inc., Auburn Hills, MI (US);
Abstract
A motor vehicle fuel fill pipe shut-off device includes a fuel shut-off valve normally closed relative to a valve seat and disposed in a path of fuel flow through the fuel fill pipe of the motor vehicle to a fuel tank thereof. The valve is connected to a diaphragm in a manner to define in part a chamber communicated by an inlet orifice to the fuel fill pipe and by an outlet orifice to the fuel tank that is vented during fueling to a charcoal canister wherein a fluid pressure in the chamber is lower than that in the fuel fill pipe during fueling to permit opening of the valve by fuel introduced through the fuel fill pipe, A fuel float or solenoid moves a closure to close off communication of the outlet orifice to the fuel tank when fuel level in the fuel tank reaches the predetermined “full” level to increase chamber fluid pressure to permit movement of the valve by a biasing spring as assisted by the diaphragm toward the valve seat and achieve closing of the valve to prevent further filling of the fuel tank with fuel.