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:
Jan. 05, 1988
Filed:
Jan. 08, 1987
Applicant:
Inventor:
Billy G Crute, Connersville, IN (US);
Assignee:
Stant Inc., Connersville, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137 39 ; 137 43 ; 220203 ;
Abstract
A fuel cap having a pressure-vacuum valve assembly for sealing a vehicle fuel tank is provided. The cap has a normally closed vent to vent the fuel tank, with a first valve member to open the vent when the pressure within the tank reaches a predetermined superatmospheric level. The cap also has a second valve member to open the vent when the pressure within the tank reaches a predetermined subatmospheric level. The cap includes a roll-over valve disposed above the first and second valve members to close the vent when the vehicle and cap are rolled over to a substantially inverted orientation to prevent fuel from spilling out of the cap.