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. 20, 2026
Filed:
Jan. 19, 2023
Oiles Corporation, Fujisawa, JP;
OILES CORPORATION, Fujisawa, JP;
Abstract
Proposed is a butterfly valve for minimizing leak of exhaust gas from an exhaust pipe even under high back pressure. The butterfly valve may include a valve plate provided in the exhaust pipe, a valve shaft crossing the exhaust pipe and holding the valve plate, and a bearing unit slidably supporting the valve shaft and including an annular sealing bush and an annular support bush into which the valve shaftis inserted. The valve may also include a housing attached to the exhaust pipe and accommodating the bearing unit. The support bush is arranged between the housing and the sealing bush and contacts the housing on an outer peripheral surface of the support bush. The sealing bush contacts the housing on an outer peripheral surface of the sealing bush and contacts a flange of the valve shaft on a valve shaft opposing surface of the sealing bush.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile