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:
May. 25, 1982
Filed:
Jul. 16, 1979
Eizi Hiramatu, Aichi, JP;
Yasushi Nakagawa, Nagoya, JP;
Hidenori Sato, Nagoya, JP;
Shigeru Yoshida, Aichi, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Nippon Denso Kabushiki Kaisha, Aichi, JP;
Aisan Industry Co. Ltd., Aichi, JP;
Abstract
A device for controlling evaporative emission from an automobile, which device comprises, a casing accommodating fuel gas absorbing agents, a tank port adapted to communicate with a fuel tank of the automobile and having a first check valve for permitting the flow of fuel gas from the fuel tank into the casing, and a purge port adapted to communicate with an internal combustion engine and having a second check valve for permitting the flow of fuel gas from the casing to the engine. Each of the check valves of the first and second check valves comprises a check ball of metal, and a valve seat engaging with the check ball and being made of thin metal plate formed in one body with a reinforcement of plastic.