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:
Jun. 03, 2025
Filed:
Aug. 28, 2019
Shanghai Zhenhua Heavy Industries Co. Ltd, Shanghai, CN;
Xianhai Sun, Shanghai, CN;
Min Zhu, Shanghai, CN;
Hongya Su, Shanghai, CN;
Zhiwen Feng, Shanghai, CN;
Cong Jia, Shanghai, CN;
Shanghai Zhenhua Heavy Industries Co. Ltd, Shanghai, CN;
Abstract
A boom extension device for a dockside container crane. A boom comprises a rear boom section () and a front boom section (). The extension device comprises: an extension trolley tool () which is disposed below the rear boom section () and the front boom section () during an extension operation, and which comprises a wheel set (), a trolley frame (), a construction platform (), and a movement track () disposed on the construction platform; a fits support frame trolley () disposed on the movement track () and used to carry a boom extension section () and guide the boom extension section () to move in a first direction; and a second support frame trolley () disposed on the movement track () and used to carry the front boom section () and guide the front boom section () to move in a second direction perpendicular to the first direction in a first plane. Further included is an extension method for a boom of a dockside container crane. The invention reduces usage of heavy-duty equipment.