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:
Feb. 16, 2021
Filed:
Apr. 24, 2019
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Kazuyuki Terada, Tokyo, JP;
Keigo Yoshida, Tokyo, JP;
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Abstract
The present invention can ensure a large capacity while curbing enlargement of occupancy space or quality degradation due to unstable winding of a fiber-reinforced resin material. A pressure container () is provided with: a container body (); and a cylindrical straight body part () and a hemispherical dome part () which are formed of an outer shell () made of a fiber-reinforced resin material, wherein, in a cross-section of the dome part () taken along the central axis of the straight body part (), the shape of the outer surface () of the dome part () of the container body () is a curved shape that falls within the range of ellipse A and ellipse B when the outside diameter of the straight body part () of the container body () is defined as 2a. The ellipse A is an ellipse that satisfies b/a=0.55, where the major axis thereof is defined as a straight line k connecting boundary points p between the straight body part () and the outer surface () of the dome part () of the container body (), the diameter along the major axis is defined as 2a, and the diameter along the minor axis is defined as 2b. The ellipse B is an ellipse that satisfies b/a=0.70, where the major axis thereof is defined as the straight line k, the diameter along the major axis is defined as 2a, and the diameter along the minor axis is defined as 2b.