Patents by Inventor Longjie HAN

Longjie HAN 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).

  • Elastic adjustable brake pad for use in train
    Patent number: 10731721
    Abstract: An elastic adjustable brake pad for use in a train, comprising a brake pad frame (1) provided with a fourth through hole (18), a brake block assembly, and a spiral compression spring (6); the brake block assembly comprises a brake block (16), a rivet (4), a Belleville spring (5), and a rivet sleeve (3), the brake block (16) comprising a friction block (10) and a static sheet steel back (7) fixedly mounted together, the rivet (4) passing through the brake block (16) and being sleeved in turn by the Belleville spring (5) and the rivet sleeve (3); the fourth through hole (18) is a stepped counterbore, and the rivet (4) in the brake block (16) penetrates the fourth through hole (18) and extends outward therefrom, the spiral compression spring (6) being sleeved over the outside of the rivet sleeve (3), and the outer side of one end of the rivet sleeve (3) being provided with a clamping groove clamped to an elastic retainer ring (2), one end of the spiral compression spring (6) abutting a step on which a secondary
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: August 4, 2020
    Assignee: BEIJING BEI MO GAO KE FRICTION MATERIAL CO. LTD
    Inventors: Jianfeng Chen, Changkun Yang, Xiang Zhao, Kai Xiao, Dan Zheng, Guangyu Li, Hua Feng, Xiaohua Liu, Yan Wang, Zhiwei Liu, Longjie Han, Xueqiang Li, Zhen Xiao, Hongbo Yang
  • ELASTIC ADJUSTABLE BRAKE PAD FOR USE IN TRAIN
    Publication number: 20180266508
    Abstract: An elastic adjustable brake pad for use in a train, comprising a brake pad frame (1) provided with a fourth through hole (18), a brake block assembly, and a spiral compression spring (6); the brake block assembly comprises a brake block (16), a rivet (4), a Belleville spring (5), and a rivet sleeve (3), the brake block (16) comprising a friction block (10) and a static sheet steel back (7) fixedly mounted together, the rivet (4) passing through the brake block (16) and being sleeved in turn by the Belleville spring (5) and the rivet sleeve (3); the fourth through hole (18) is a stepped counterbore, and the rivet (4) in the brake block (16) penetrates the fourth through hole (18) and extends outward therefrom, the spiral compression spring (6) being sleeved over the outside of the rivet sleeve (3), and the outer side of one end of the rivet sleeve (3) being provided with a clamping groove clamped to an elastic retainer ring (2), one end of the spiral compression spring (6) abutting a step on which a secondary
    Type: Application
    Filed: April 20, 2017
    Publication date: September 20, 2018
    Inventors: Jianfeng CHEN, Changkun YANG, Xiang ZHAO, Kai XIAO, Dan ZHENG, Guangyu LI, Hua FENG, Xiaohua LIU, Yan WANG, Zhiwei LIU, Longjie HAN, Xueqiang LI, Zhen XIAO, Hongbo YANG