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:
Oct. 18, 1977
Filed:
Jan. 06, 1976
Mikiji Ito, Nagoya, JA;
Zyunziro Yosimura, Okazaki, JA;
Nippondenso Co., Ltd., Kariya, JA;
Abstract
A check valve has a valve member seated on a separating wall member in a housing to interrupt the flow of fluid. The valve member is formed to be unseated from the separating wall member in its free state so that the fluid may flow through a clearance between the valve member and the separating wall member when the pressure difference between one side of the separating wall member and the other is small, while it is formed to be seated on the separating wall member when the pressure difference has become larger. Therefore, the fluid can pass in the both directions crossing the separating wall member when the pressure difference is small, while it is interrupted when the pressure difference has increased.