Patents by Inventor Yun Yi Song

Yun Yi Song 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).

  • Transmission gear box for bikes
    Patent number: 8684881
    Abstract: Provided is a transmission gear box for bikes including: crank arms that receive a rotational driving force from rotatable pedals of each bike and transmits the received rotational driving force to a main shaft; a transmission gear unit that receives the rotational driving force from the main shaft and performs a transmission mode shifting operation at a gear tooth ratio according to a selected transmission mode gearshift; a lever manipulation unit that selects one of the transmission mode gearshifts of the transmission gear unit according to manipulation of a transmission mode shift lever, to thus manipulate one of cables connected to the respective transmission mode gearshifts; and a clutching unit that is operated by one cable selected by the lever manipulation unit to thus make one of ring gears of the transmission gear unit fixed in a gear tooth engagement coupling manner and to thereby manipulate a transmission mode shifting process of the transmission gear unit.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: April 1, 2014
    Inventor: Yun Yi Song
  • TRANSMISSION GEAR BOX FOR BIKES
    Publication number: 20130017922
    Abstract: Provided is a transmission gear box for bikes including: crank arms that receive a rotational driving force from rotatable pedals of each bike and transmits the received rotational driving force to a main shaft; a transmission gear unit that receives the rotational driving force from the main shaft and performs a transmission mode shifting operation at a gear tooth ratio according to a selected transmission mode gearshift; a lever manipulation unit that selects one of the transmission mode gearshifts of the transmission gear unit according to manipulation of a transmission mode shift lever, to thus manipulate one of cables connected to the respective transmission mode gearshifts; and a clutching unit that is operated by one cable selected by the lever manipulation unit to thus make one of ring gears of the transmission gear unit fixed in a gear tooth engagement coupling manner and to thereby manipulate a transmission mode shifting process of the transmission gear unit.
    Type: Application
    Filed: March 24, 2011
    Publication date: January 17, 2013
    Inventor: Yun Yi Song