Patents by Inventor Chin-Hun Yang

Chin-Hun Yang 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).

  • Motor vehicle bumper system
    Patent number: 6929296
    Abstract: A motor vehicle bumper system includes a bumper unit having pairs of hydraulic cylinders controlled to move a bumper between an extended position and a retracted position, a pump controlled to pump the oil from an oil tank to the hydraulic cylinders to move the bumper between the extended position and the retracted position, a pressure-setup pipe unit connected between the hydraulic cylinders, the pump and the oil tank and equipped with a decompression valve and controlled by a direction control valve to let the oil be alternatively pumped to the upper oil chambers and lower oil chambers of the hydraulic cylinders to retract or extend out the bumper, and a pressure-relief pipe unit using a relief valve and an accumulator to release pressure from the hydraulic cylinders and a hydraulic oil pressure sensor to control the explosion time of the air bag of the motor vehicle.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: August 16, 2005
    Inventor: Chin-Hun Yang
  • Motor vehicle bumper system
    Publication number: 20040032132
    Abstract: A motor vehicle bumper system includes a bumper unit having pairs of hydraulic cylinders controlled to move a bumper between an extended position and a retracted position, a pump controlled to pump the oil from an oil tank to the hydraulic cylinders to move the bumper between the extended position and the retracted position, a pressure-setup pipe unit connected between the hydraulic cylinders, the pump and the oil tank and equipped with a decompression valve and controlled by a direction control valve to let the oil be alternatively pumped to the upper oil chambers and lower oil chambers of the hydraulic cylinders to retract or extend out the bumper, and a pressure-relief pipe unit using a relief valve and an accumulator to release pressure from the hydraulic cylinders and a hydraulic oil pressure sensor to control the explosion time of the air bag of the motor vehicle.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 19, 2004
    Inventor: Chin-Hun Yang
  • Shock absorbing system for an automotive vehicle
    Patent number: 6312027
    Abstract: A shock-absorbing system for as automotive vehicle. the system comprises a hydraulic oil circuit which includes a storage tank for storing hydraulic oil, electric motor for driving the pump. Front and rear bumper subsystems for respectively extending and retracting of front rear bumpers, a pressure, a electric circuit subsystem for controlling valves, and valves control subsystem.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: November 6, 2001
    Inventor: Chin-Hun Yang