Patents by Inventor Yu-Zen Tseng

Yu-Zen Tseng 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).

  • Patent number: 9333980
    Abstract: An assistance device includes a body having two wheels, and a pivotal device located in the body. Two transmission units are pivotably connected to the pivotal device by two shafts. A restriction unit includes a first link, a second link and a rail which is connected to the body. The first link has the first end pivotably connected to one of the two transmission units. The second link is pivotably connected to the other one of the two transmission units. A roller is connected to the first end of the second link and movable along the rail. A leg having a top end to which the second end of the first link is pivotably connected. The second end of the second link is pivotably connected between the top end and the lower end of the leg. The leg contacts against the ground to lift the body to climb stairs.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: May 10, 2016
    Assignee: FOOTWEAR & RECREATION TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Pao Pao Liu, Li-Heng Chang, Yu-Zen Tseng, Chin-Chia Liu
  • Patent number: 9192213
    Abstract: A cane includes a tube, an extension rod telescopically mounted within one end of the tube, and a control mechanism sandwiched between the tube and the extension rod. The tube defines a first aperture and a second aperture. The extension rod defines a plurality of holes. The control mechanism is movable among a first position where the control mechanism is positioned in a selected one of the holes in the extension rod, and the tube, the extension rod and the control mechanism are prohibited from moving axially with respect to one another; a second position where the extension rod and the control mechanism together are allowed to move axially with respect to the tube; and a third position where the extension rod is allowed to move axially with respect to the control mechanism and the tube.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: November 24, 2015
    Assignees: FOOTWEAR & RECREATION TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ching-Ming Lin, Szu-Yuan Huang, Yu-Zen Tseng, Yu-Ju Chen
  • Publication number: 20150013735
    Abstract: A cane includes a tube, an extension rod telescopically mounted within one end of the tube, and a control mechanism sandwiched between the tube and the extension rod. The tube defines a first aperture and a second aperture. The extension rod defines a plurality of holes. The control mechanism is movable among a first position where the control mechanism is positioned in a selected one of the holes in the extension rod, and the tube, the extension rod and the control mechanism are prohibited from moving axially with respect to one another; a second position where the extension rod and the control mechanism together are allowed to move axially with respect to the tube; and a third position where the extension rod is allowed to move axially with respect to the control mechanism and the tube.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 15, 2015
    Inventors: Ching-Ming Lin, Szu-Yuan Huang, Yu-Zen Tseng, Yu-Ju Chen