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:
Sep. 16, 1997
Filed:
Nov. 08, 1994
John J Roetker, Connersville, IN (US);
Stant Manufacturing Inc., Connersville, IN (US);
Abstract
A fuel vapor control valve for controlling the flow of fuel vapor and liquid fuel through an aperture in a fuel tank is provided. The fuel vapor control valve includes a housing mounted in the aperture and formed to include an inlet and an outlet, a chamber disposed in the housing, a pressure-relief valve disposed in the camber, and a vacuum valve disposed in the chamber and formed for movement relative to the pressure-relief valve. The vacuum valve is biased to relieve subatmospheric tank pressure below a predetermined minimum pressure and includes a base that is mounted on the pressure-relief valve and arranged to define a venting aperture. In addition, the fuel vapor control valve includes a ball that is movably positioned in the chamber to selectively interrupt the flow of fuel vapor through the venting aperture.