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:
Dec. 30, 2025
Filed:
Jan. 24, 2022
Komatsu Ltd., Tokyo, JP;
KOMATSU LTD., Tokyo, JP;
Abstract
A hydraulic excavator includes a vehicular body, a boom bottom pin supported by the vehicular body, a boom rotatably coupled to the vehicular body by the boom bottom pin, a boom top pin attached to a tip end of the boom, an arm rotatably coupled to the boom by the boom top pin, an arm top pin attached to a tip end of the arm, and a bucket rotatably coupled to the arm by the arm top pin. The computing device calculates a weight of a load conveyed by a work implement based on any two equilibrium equations of an equation of moment equilibrium around the boom bottom pin, an equation of moment equilibrium around the boom top pin, and an equation of moment equilibrium around the arm top pin.