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:
Nov. 02, 1999
Filed:
Dec. 28, 1995
Kenji Motosugi, Kawagoe, JP;
Zenjiro Odera, Naka-gun, JP;
Hoechst Aktiengesellschaft, Frankfurt, DE;
Abstract
This invention relates to a refueling nozzle that can be inserted easily into a filler opening in such a manner as to seal up the filler opening, securely engaging the nozzle and opening, and thereby prevent erroneous operation. Additionally, the refueling nozzle can automatically stop or start the refueling. The fuel discharge unit 3 comprises a fitting member 9 in the shape of a truncated cone such that the cross-sectional diameter gradually becomes smaller from a value larger than the inside diameter of the filler opening of a fuel tank. In the fitting member 9, a vapor passage 11 is formed to recover or discharge fuel vapor in the fuel tank. A fuel sensor 14 detects the presence of fuel and kind of fuel vapor present in the fuel tank through contact with the fuel vapor flowing through the vapor passage 11. A liquid level sensor 15 determines the surface level of fuel in the tank and whether the level of the fuel in the fuel tank has reached a predetermined level. A control unit C, responsive to outputs of the fuel sensor and liquid level sensor, controls the start and stop of refueling in the fuel tank.