US 11,732,803 B2
Metal seal
Kazuyuki Kashihara, Arida (JP); and Satoshi Toudou, Arida (JP)
Assigned to MITSUBISHI CABLE INDUSTRIES, LTD., Tokyo (JP)
Filed by MITSUBISHI CABLE INDUSTRIES, LTD., Tokyo (JP)
Filed on Oct. 20, 2021, as Appl. No. 17/506,530.
Claims priority of application No. 2020-191060 (JP), filed on Nov. 17, 2020.
Prior Publication US 2022/0154828 A1, May 19, 2022
Int. Cl. F16J 15/3204 (2016.01)
CPC F16J 15/3204 (2013.01) 11 Claims
OG exemplary drawing
 
1. A metal seal, entirely ring-shaped and disposed between a first plane and a second plane which are mutually parallel, comprising a construction in which:
a middle base portion of which cross-sectional configuration is rectangular, a first main convex portion on an inner side to contact the first plane, a first auxiliary convex portion on an outer side, a second main convex portion on the outer side to contact the second plane, and a second auxiliary convex portion on the inner side, are provided;
an inner peripheral portion of the first main convex portion, an inner short side of the middle base portion, and an inner peripheral portion of the second auxiliary convex portion are continuous in cross-sectional face with a common straight line;
an outer peripheral portion of the second main convex portion, an outer short side of the middle base portion, and an outer peripheral portion of the first auxiliary convex portion are continuous in cross-sectional face with a common straight line; and
the first main convex portion and the second main convex portion respectively have an arc-shaped peak portion on a forth end, and, the first auxiliary convex portion and the second auxiliary convex portion respectively have an arc-shaped peak portion on a forth end.