Patents by Inventor Weibin LAN

Weibin LAN 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).

  • Concealed door closer
    Patent number: 9145726
    Abstract: A concealed door closer includes a housing, an input shaft and an output shaft, the input shaft being connected to a motor, wherein a joining member is arranged between the input shaft and the output shaft, and two ends of the joining member are respectively provided with an upper connection piece and a lower connection piece, which are connected to a roller via vertical rotation shaft, and wherein both the input shaft and the output shaft are provided with a left connection piece and a right connection piece, which are horizontally connected to the roller via a horizontal rotation shaft. The components in the door closer have a simple structure and may be easily processed and assembled. The size of the joint after assembly is equivalent to that of the joining member, so the overall size is small.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: September 29, 2015
    Assignee: Oubao Security Technology Co., Ltd.
    Inventors: Haojie Li, Zhenfeng Fu, Guowei Jiang, Zhenbo Wu, Hongbo Liu, Weibin Lan, Chenxi Zhu, Jun Zhang, Maochen Zhang
  • CONCEALED DOOR CLOSER
    Publication number: 20140304942
    Abstract: A concealed door closer includes a housing, an input shaft and an output shaft, the input shaft being connected to a motor, wherein a joining member is arranged between the input shaft and the output shaft, and two ends of the joining member are respectively provided with an upper connection piece and a lower connection piece, which are connected to a roller via vertical rotation shaft, and wherein both the input shaft and the output shaft are provided with a left connection piece and a right connection piece, which are horizontally connected to the roller via a horizontal rotation shaft. The components in the door closer have a simple structure and may be easily processed and assembled. The size of the joint after assembly is equivalent to that of the joining member, so the overall size is small.
    Type: Application
    Filed: March 13, 2014
    Publication date: October 16, 2014
    Applicant: Oubao Security Technology Co., Ltd.
    Inventors: Haojie LI, Zhenfeng FU, Guowei JIANG, Zhenbo WU, Hongbo LIU, Weibin LAN, Chenxi ZHU, Jun ZHANG, Maochen ZHANG