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:
Jul. 17, 2018
Filed:
Jun. 24, 2015
Aisan Kogyo Kabushiki Kaisha, Obu-shi, Aichi-ken, JP;
Hiroshi Misumi, Nagoya, JP;
Sunao Kitamura, Nagoya, JP;
AISAN KOGYO KABUSHIKI KAISHA, Obu-Shi, JP;
Abstract
A double eccentric valve includes: a drive mechanism which produces drive force for rotating a rotary shaft in a direction to open the valve; a drive force receiving unit provided integrally with the rotary shaft to receive the drive force; a bearing located between a valve element and the drive force receiving unit along the center axis of the rotary shaft to support the rotary shaft; and a return spring which produces return spring force for rotating the rotary shaft in a valve closing direction. The double eccentric valve is configured to generate a separating-direction biasing force which inclines the rotary shaft with the bearing at a fulcrum to bias the valve assembly away from a valve seat, the force being caused by the return spring force when the drive mechanism is not operated and acting in a direction perpendicular to the center axis of the bearing.