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:
Sep. 21, 2021
Filed:
Dec. 21, 2017
Hitachi, Ltd., Tokyo, JP;
Hisashi Tanie, Tokyo, JP;
Makoto Kitano, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Some materials desired to acquire mechanical characteristics and fatigue characteristics are difficult to make in a large-size bulk material for a test piece. The invention provides a test jig which includes a primary jig which fixes both sides of a test piece, which is a test object, an upper jig which includes a load portion to load a weight on two places of an upper surface and two places of a lower surface of the primary jig, and a lower jig which includes a load portion to load a weight on two places of the upper surface and two places of the lower surface of the primary jig. The upper surface and the lower surface of the primary jig disposed on both sides of the test piece are on almost the same flat surface.