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. 28, 2014
Filed:
Apr. 11, 2012
Linrui Sun, Shanghai, CN;
John Lanning, Shanghai, CN;
Liangjian LI, Shanghai, CN;
Biwen Qiu, Shanghai, CN;
Hua Wan, Shanghai, CN;
Hui Guo, Shanghai, CN;
Linrui Sun, Shanghai, CN;
John Lanning, Shanghai, CN;
Liangjian Li, Shanghai, CN;
Biwen Qiu, Shanghai, CN;
Hua Wan, Shanghai, CN;
Hui Guo, Shanghai, CN;
Shanghai Sany Science and Technology Co., Ltd, Shanghai, CN;
Abstract
Provided is a mobile counterweight equipment of crawler crane, which includes a main platform, wherein the said mobile counterweight equipment further includes a pair of sliding rails on two sides of the main platform, a slider and counterweight equipment on the sliding rails; the counterweight equipment is connected to the slider, the slider sliding back and forth on the sliding rails. Accordingly, total weight of the counterweight is greatly reduced, the structure is simplified and it is easy to operate and to maintain.