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:
Apr. 21, 2025
Filed:
Sep. 13, 2021
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Norihisa Takei, Tokyo, JP;
Hidekazu Uehara, Tokyo, JP;
Takumi Hori, Tokyo, JP;
Kohei Ozaki, Tokyo, JP;
Azumi Yoshida, Tokyo, JP;
Masaya Kawano, Tokyo, JP;
Shin Nishimoto, Yokohama, JP;
Tatsuro Furusho, Yokohama, JP;
Shintaro Okumura, Yokohama, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
This seal device comprises: a movable seal ring arranged so as to be deformable in the radial direction, in a state of facing an outer peripheral surface of a rotor of a steam turbine capable of rotating around the axis; a first elastic member provided to each of end surfaces of the movable seal ring in the circumferential direction; and a second elastic member that is provided to an intermediate position in the circumferential direction of the movable seal ring and urges the movable seal ring outward in the radial direction.