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. 13, 2003
Filed:
Oct. 18, 2001
Jeffrey Devall, Aberquenny, GB;
Stant Manufacturing Inc., Connersville, IN (US);
Abstract
A vent valve for use with a fuel containing system including a fuel tank and a vapor recovery system. The vent valve includes a housing which communicates with the fuel tank and the vapor recovery system. The housing defines a path between the fuel tank and vapor recovery system. A float valve is positioned in the housing and is responsive to the presence of fuel in the tank. The housing has at least one vacuum vent positioned in the path. An umbrella valve is carried on the housing and positioned between the fuel tank and the vapor recovery system. The umbrella valve has a wall defining an orifice extending therethrough and a cover portion extending from the wall. The orifice is selectively sealed at one end by the float valve and is selectively sealed at the opposite end by the head valve. The covering portion of the umbrella valve displaceably overlies the vacuum vent for preventing passage of liquid fuel and fuel vapor through the vent when the force against the covering portion is generally positive relative to the fuel vent and covering portion. The covering portion allows passage of liquid fuel and fuel vapor through the vent when the force on the covering portion is greater than the resisting force of the covering portion there against.