Patents by Inventor Biwen Qiu

Biwen Qiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mobile counterweight equipment of crawler crane and the crane including the equipment
    Patent number: 8870001
    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.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: October 28, 2014
    Assignee: Shanghai Sany Science and Technology Co., Ltd
    Inventors: Linrui Sun, John Lanning, Liangjian Li, Biwen Qiu, Hua Wan, Hui Guo
  • MOVABLE WEIGHT COUNTERBALANCE APPARATUS OF CRAWLER CRANE AND CRANE CONTAINING APPARATUS THEREOF
    Publication number: 20130161278
    Abstract: The present invention discloses 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, slider means and counterweight equipment on the said sliding rails; the said counterweight equipment is connected to the said slider means, the said slider means slides back and forth on the said sliding rails. The beneficial effects of the present invention are: the total weight of the counterweight is greatly reduced, the structure is simplified and it is easy to operate and to maintain.
    Type: Application
    Filed: April 11, 2012
    Publication date: June 27, 2013
    Applicant: SHANGHAI SANY SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Linrui Sun, John Lanning, Liangjian Li, Biwen Qiu, Hua Wan, Hui Guo