Patents by Inventor Huling Liao

Huling Liao 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 REAR COUNTERWEIGHT DEVICE FOR CRAWLER CRANE
    Publication number: 20130292352
    Abstract: A mobile rear counterweight device for crawler crane is provided wherein comprising: a slide rail, mounted at the rear of the crawler crane, and one end of the slide rail is connected with the rear of the main platform while the other end of the slide rail is connected with a mast by a pull rod; and, a hoist driving mechanism and a trolley driven by the mechanism, one end of the said mechanism is connected with the end of the slide rail which is near the rear of the main platform, the other end of the mechanism is connected with the trolley, the said trolley bearing counterweight block is mounted on the slide rail.
    Type: Application
    Filed: June 27, 2011
    Publication date: November 7, 2013
    Applicants: Kunshan Sany Mechanical, Co., Ltd., Hunan Sany Intelligent Control Equipment Co., Ltd.
    Inventors: Zhi Zhang, Huling Liao, Ce Wang