Patents by Inventor Yuan-Huan Chang

Yuan-Huan Chang 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: 8281870
    Abstract: A fire apparatus includes a housing, a water tank mounted in the housing, a support unit mounted on the housing, a spray gun mounted on and supported by the support unit, a hose having a first end connected with the water tank and a second end connected with the spray gun, a drive motor mounted in the housing and electrically connected with the spray gun to pressurize the spray gun, and an electric storage unit mounted in the housing and electrically connected with the drive motor to supply an electric power to the drive motor. Thus, the spray gun injects atomized water outward to extinguish the fires easily and quickly.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: October 9, 2012
    Assignee: Yue San Enterprise Co., Ltd.
    Inventor: Yuan-Huan Chang
  • Publication number: 20120024548
    Abstract: A fire apparatus includes a main body, a water tank mounted in the main body, a spray gun mounted on the main body, a hose connected with the water tank and the spray gun, a drive pump connected with the spray gun, a power source mounted on the main body, and a transmission unit connected between the power source and the drive pump. When the power source is disposed at a slow running state during a neutral position, the power of the power source is transmitted by the transmission unit to the drive pump so that the drive pump is driven to pressurize the water tank and the spray gun, and the spray gun sprays atomized water or bubbles to extinguish the fire. Thus, the drive pump is driven by a single power of the power source without needing an external power supply.
    Type: Application
    Filed: September 30, 2010
    Publication date: February 2, 2012
    Inventor: Yuan-Huan Chang
  • Publication number: 20120024549
    Abstract: A fire extinguishing device is disclosed. The fire extinguishing device is installed at a motor vehicle with an engine. The fire extinguishing device includes a first and a second water tanks, a foam tank and a spray gun. Utilizing a pump and a driving unit, the fire extinguishing device in the present invention uses the engine in the motor vehicle without installing and purchasing another engine to become a flexible fire extinguisher which can as well save costs.
    Type: Application
    Filed: December 3, 2010
    Publication date: February 2, 2012
    Applicant: YUE SAN ENTERPRISE CO., LTD.
    Inventors: Yuan-Huan CHANG, Ming-Hua CHANG
  • Publication number: 20110303424
    Abstract: A fire apparatus includes a housing, a water tank mounted in the housing, a support unit mounted on the housing, a spray gun mounted on and supported by the support unit, a hose having a first end connected with the water tank and a second end connected with the spray gun, a drive motor mounted in the housing and electrically connected with the spray gun to pressurize the spray gun, and an electric storage unit mounted in the housing and electrically connected with the drive motor to supply an electric power to the drive motor. Thus, the spray gun injects atomized water outward to extinguish the fires easily and quickly.
    Type: Application
    Filed: July 30, 2010
    Publication date: December 15, 2011
    Inventor: Yuan-Huan Chang