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. 29, 2013
Filed:
Sep. 08, 2009
Hiroshi Nishi, Aichi-ken, JP;
Hiroaki Kito, Aichi-ken, JP;
Hiroshi Nishi, Aichi-ken, JP;
Hiroaki Kito, Aichi-ken, JP;
Toyoda Gosei Co., Ltd., Aichi-pref., JP;
Abstract
In a fuel cutoff valve, a casingincluding a valve chestis fastened to a cover memberthermally welded to an upper tank wall FTa of a fuel tank FT. A floatis located in the valve chestof the casing. The casinghas bottomed recessesformed as concaves in an outer circumferential wall of the valve chest, and vent holesprovided at respective bottom areas of the bottomed recesses. Each of the vent holesis a through hole of a small diameter, which is determined to be sufficient for ventilation of the fuel vapor in the valve chest. The vent holehas a short dimension by the depth of the bottomed recess