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:
Oct. 01, 2019
Filed:
Dec. 13, 2018
Guangxi Liugong Machinery Co., Ltd., Liuzhou, Guangxi, CN;
Edward Wagner, Guangxi, CN;
Guangxi LiuGong Machinery Co., Ltd., Liuzhou, Guangzi, CN;
Abstract
An excavator includes an articulated boom and a balancing mechanism that assists a movement of the articulated boom from a lower position to an upper position by applying a pulling force on the articulated boom. The balancing mechanism comprises a balancing member that generates an assisting force and a force transfer mechanism that couples the balancing member with the articulated boom. The force transfer mechanism comprises a link mechanism that transfers the assisting force from the balancing member to the articulated boom at a transmission ratio independent from a position of the articulated boom.