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:
Mar. 28, 1989
Filed:
Aug. 26, 1986
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An apparatus for preventing the outflow of a fuel from a fuel tank for vehicle comprises a vent tube device connected to the fuel tank and a canister device connected to the inlet system of an engine to supply the fuel into the tank, an evaporating tube device separated from the vent tube device and connected to the fuel tank and the canister device to supply the evaporated fuel within the tank to the canister device, a shut-off valve disposed in the vent tube device to pass and interrupt the fuel flow through the vent tube device, an opener switch for detecting the opening and closing states of a lid opener opening and closing a filler lid for supplying the fuel into the fuel tank, and a control device for controlling the opening and closing of the shut-off valve by the opener switch to open the shut-off valve only in the open state of the lid opener.