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:
Apr. 24, 2018
Filed:
Dec. 24, 2014
Aisan Kogyo Kabushiki Kaisha, Obu-shi, Aichi-ken, JP;
AISAN KOGYO KABUSHIKI KAISHA, Obu-Shi, JP;
Abstract
A double eccentric valve includes a valve seat having a seat surface, a valve element having a sealing surface, a passage in which the valve seat and the valve element are arranged, and a rotary shaft which rotates the valve element attached to an attaching part of the rotary shaft. With respect to the valve element and the valve hole, a main axis of the rotary shaft is doubly eccentric in a passage direction and a direction perpendicular to the passage. By rotation about the main axis, the valve element moves between a fully closed position where the sealing surface contacts the seat surface and a fully open position where the sealing surface is furthest away from the seat surface. A second axis of the attaching part extends parallel to the main axis and eccentrically in a radial direction of the rotary shaft from the main axis.