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:
Mar. 08, 2022
Filed:
May. 18, 2017
Nara Machinery Co., Ltd., Tokyo, JP;
Kenichi Arizono, Tokyo, JP;
NARA MACHINERY CO., LTD., Tokyo, JP;
Abstract
A port structure of a containment apparatus is capable of providing a highly reliable port by means of a structure with which a port can be formed in any size at any position and high airtightness thereof can be maintained. The port structure has: a port formation hole that is formed in a transparent synthetic resin sheet defining at least a part of a chamber; an inner ring member disposed on the inner surface side of the port formation hole; an outer ring member disposed on the outer surface side of the port formation hole; and a fastening member that joins the inner ring member and the outer ring member to each other while having a rim portion of the port formation hole held therebetween.