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:
Dec. 27, 2022
Filed:
Oct. 17, 2019
Nitto Denko Corporation, Ibaraki, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
A ventilation component () includes a gas-permeable membrane (), a ventilation valve (), and a structural member (). The ventilation component () is to be attached to a housing () having a ventilation opening (). The ventilation valve () includes an elastic body, and is opened and closed by elastic deformation of the elastic body. The structural member () supports the gas-permeable membrane () and the ventilation valve (). In an attached state where the ventilation component () is attached to the housing (), ventilation between an inside of the housing () and an outside of the housing () is carried out via the gas-permeable membrane (), and the ventilation valve () is opened to discharge a gas inside the housingto the outside of the housingwhen a difference between a pressure inside the housing () and a pressure outside the housing () is equal to or higher than a predetermined value. The elastic body included in the ventilation valve () is formed of a rubber whose rate of change in breaking strength is 95% to 120%.