Patents Assigned to Jin-Liang Chen
  • Stepper
    Patent number: 5232421
    Abstract: A stepper includes a base frame, two swing arms, two hydraulic cylinders and an adjustment assembly. Each of the swing arms is mounted pivotally on the base frame at one end and carries a pedal on the other end. Each of the hydraulic cylinders is mounted pivotally on one of the pedals at one end and on the base frame at the other end. The adjustment assembly is disposed on the base frame and permits adjustments in the angular displacement of the pedals.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: August 3, 1993
    Assignee: Jin-Liang Chen
    Inventors: Jin-Liang Chen, Cheng-Chang Wu