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. 30, 2018
Filed:
Sep. 24, 2014
Kawasaki Jukogyo Kabushiki Kaisha, Hyogo, JP;
Keiichiro Kamura, Kobe, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Hyogo, JP;
Abstract
An air spring includes: an upper surface plate; a lower surface plate opposing the upper surface plate; an elastic film airtightly coupling a peripheral portion of the upper surface plate and a peripheral portion of the lower surface plate to each other to form an air chamber inside the air spring; the air chamber connected to the lower surface plate; and an exhaust passage forming body at which an exhaust passage is formed. The exhaust passage includes an exhaust passage inlet and an exhaust passage outlet. The exhaust passage inlet is open to an outside of the air chamber when a clearance between the upper surface plate and the lower surface plate in an upward/downward direction falls within a predetermined allowable range and is open to an inside of the air chamber when the clearance exceeds an upper limit of the predetermined allowable range.