Patents by Inventor Liu Yuanwei

Liu Yuanwei 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).

  • Publication number: 20190322509
    Abstract: A frame for a pallet truck includes a frame body, a fork connected to and extending longitudinally from a front of the frame body. The frame body includes a frame housing, a front cover and a top block; with the top block connected to the rear face of the frame housing. The frame housing has an inner cavity with a forward facing opening and a partition wall divides the inner cavity into a battery cavity and an electrical components cavity.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 24, 2019
    Inventors: Kang Jianming, Chen Jianwei, Liu Yuanwei
  • Patent number: 9079754
    Abstract: A powered pallet truck is provided having a frame assembly that includes a base support portion and a load lift portion. The base support portion includes a lift cylinder device seat spaced from and above a steering seat, and the load lift portion includes a pair of forks which extend forwardly of the base support portion. The powered pallet truck has a lift cylinder device connected to the load lift portion and to the base support portion.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: July 14, 2015
    Assignee: BIG LIFT, LLC
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Publication number: 20140353562
    Abstract: A powered pallet truck is provided having a frame assembly that includes a base support portion and a load lift portion. The base support portion includes a lift cylinder device seat spaced from and above a steering seat, and the load lift portion includes a pair of forks which extend forwardly of the base support portion. The powered pallet truck has a lift cylinder device connected to the load lift portion and to the base support portion.
    Type: Application
    Filed: August 7, 2014
    Publication date: December 4, 2014
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Patent number: 8833736
    Abstract: A powered pallet truck is provided having a frame assembly that includes a base support portion and a load lift portion. The powered pallet truck has a lift cylinder device connected to the load lift portion and to the base support portion.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: September 16, 2014
    Assignee: Big Lift, LLC
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Publication number: 20130306922
    Abstract: A powered pallet truck is provided having a frame assembly that includes a base support portion and a load lift portion. The powered pallet truck has a lift cylinder device connected to the load lift portion and to the base support portion.
    Type: Application
    Filed: July 24, 2013
    Publication date: November 21, 2013
    Applicant: BIG LIFT, LLC
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Patent number: 8540213
    Abstract: A powered pallet truck is provided having a drive motor mounted in a drive wheel, a lift mechanism in general fore-and-aft alignment with the center of the drive wheel, and a pressurized fluid supply mechanism mounted to the load lift portion of the frame assembly. In one aspect, the powered pallet truck has a fluid conduit connected to an upper portion of a lift cylinder device adjacent a pivot connection between the lift cylinder device and a load lift portion of the pallet truck to limit movement of the fluid conduit during up and down movement of the load lift portion. In another aspect, the powered pallet truck has a base support portion with an arcuate window permitting movement of one or more cables extending therethrough as a steering assembly of the pallet truck is turned.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: September 24, 2013
    Assignee: Big Lift, LLC
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Publication number: 20130153840
    Abstract: A powered pallet truck is provided having a drive motor mounted in a drive wheel, a lift mechanism in general fore-and-aft alignment with the center of the drive wheel, and a pressurized fluid supply mechanism mounted to the load lift portion of the frame assembly which keeps an overall longitudinal length of the pallet truck to a minimum. In another form, the powered pallet truck has a fluid conduit connected to an upper portion of a lift cylinder device adjacent a pivot connection between the lift cylinder device and a load lift portion of the pallet truck to limit movement of the fluid conduit during up and down movement of the load lift portion. In one aspect, the powered pallet truck has a base support portion with an arcuate window permitting movement of one or more cables extending therethrough as a steering assembly of the pallet truck is turned.
    Type: Application
    Filed: January 31, 2012
    Publication date: June 20, 2013
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Patent number: D692202
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: October 22, 2013
    Assignee: Big Lift, LLC
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Patent number: D692203
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: October 22, 2013
    Assignee: Big Lift, LLC
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Patent number: D692204
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: October 22, 2013
    Assignee: Big Lift, LLC
    Inventors: Meng Feiquan, Liu Yuanwei, Jinhui He
  • Patent number: D872965
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: January 14, 2020
    Assignee: Zhejiang E-P Equipment Co., Ltd.
    Inventors: Liu Yuanwei, Chen Jianwei, Meng Feiquan, Kang Jianming, Yu Jiandong
  • Patent number: D903972
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: December 1, 2020
    Inventors: Liu Yuanwei, Chen Jianwei, Meng Feiquan, Kang Jianming, Yu Jiandong
  • Patent number: D903973
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: December 1, 2020
    Inventors: Liu Yuanwei, Chen Jianwei, Meng Feiquan, Kang Jianming, Yu Jiandong