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:
Jan. 30, 2018
Filed:
Jun. 30, 2016
Olympus Corporation, Tokyo, JP;
Sho Nakajima, Hachioji, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
An endoscope includes a partition wall to shield an inner side space and an outer side space, a cylindrical body including an internal wall surface coupled to the partition wall to be capable of being water tight, and forming a communication hole communicating with the inner side space, and including a through-hole piercing through the internal wall surface to an outer circumference, a valve body fixed to the communication hole keeping watertightness and including a check valve section opening and closing according to a pressure difference between the inner side space and the outer side space, a first frame body provided on an outer circumference side of the cylindrical body and is capable of operating in an axial direction of the cylindrical body, a second frame body sheathed over the cylindrical body and the first frame body keeping watertightness, and forming a first space communicating with the through-hole.