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:
Dec. 23, 1986
Filed:
Aug. 07, 1985
Russell D Keller, Portland, OR (US);
Other;
Abstract
An anti-siphon fuel filler assembly having restriction means therein for preventing unauthorized fuel removal is provided. In addition, back pressure relief means are provided for preventing the premature deactivation of automatic fuel dispensing systems caused by reverse fuel flow. The back pressure relief means includes a plurality of side openings and tabs extending outwardly from the edges of such side openings to deflect fuel out of the side openings when such fuel splashes upward from the restriction means. The invention may be used as an insert, fixedly positioned within an existing filler neck tube. In the alternative, the invention may be an anti-siphon filler neck tube used as an original equipment component for new vehicles, replacing the conventional filler neck tube.