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:
Aug. 12, 2025
Filed:
Oct. 15, 2021
Valqua, Ltd., Tokyo, JP;
Koji Sato, Gojo, JP;
VALQUA, LTD., Tokyo, JP;
Abstract
A metal gasket having an annular planar shape with a vertical cross-section having a sideways U-shape has angular portions in an upper surface portion and a lower surface portion, respectively. In the angular portions, inclined faces inclined toward the inner peripheral direction and having a minimum thickness portion with a thickness corresponding to 3-25% of the height of the metal gasket are formed at a boundary between an upper surface of the upper member and an inner peripheral surface of an inner peripheral portion and a boundary between a lower surface of the lower surface portion and the inner peripheral surface of the inner peripheral portion, respectively. A height from the upper surface of the upper surface portion to a vertex of the angular portion and a height from the lower surface of the lower surface portion to a vertex of the angular portion are 0.01 mm or greater.