Patents by Inventor Yoon-Chul Song

Yoon-Chul 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).

  • Active dynamic vibration absorber apparatus for vehicle
    Patent number: 8616536
    Abstract: An active dynamic vibration absorber apparatus for a vehicle that may be mounted to a frame of the vehicle and vibrates when power may be supplied to attenuate vibration of the vehicle, may include a housing, an upper spring and a lower spring, and a yoke assembly disposed between the upper spring and the lower spring which may be plates arranged in parallel, and selectively vibrates up/down in the housing, wherein the yoke assembly has an upper protrusion and a lower protrusion that protrude from the top and the bottom thereof, respectively, the upper protrusion being fastened to the center of the upper spring through the housing, and the lower protrusion being fastened to the center of the lower spring in the housing.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: December 31, 2013
    Assignees: Hyundai Motor Company, Pavco Co., Ltd.
    Inventors: Jae-San Kim, Jeong-Hoon Kim, Un-Hwan Park, Yoon-Chul Song, Sang-Heun Oh
  • ACTIVE DYNAMIC VIBRATION ABSORBER APPARATUS FOR VEHICLE
    Publication number: 20110316206
    Abstract: An active dynamic vibration absorber apparatus for a vehicle that may be mounted to a frame of the vehicle and vibrates when power may be supplied to attenuate vibration of the vehicle, may include a housing, an upper spring and a lower spring, and a yoke assembly disposed between the upper spring and the lower spring which may be plates arranged in parallel, and selectively vibrates up/down in the housing, wherein the yoke assembly has an upper protrusion and a lower protrusion that protrude from the top and the bottom thereof, respectively, the upper protrusion being fastened to the center of the upper spring through the housing, and the lower protrusion being fastened to the center of the lower spring in the housing.
    Type: Application
    Filed: November 23, 2010
    Publication date: December 29, 2011
    Applicants: PAVCO Co., Ltd., Hyundai Motor Company
    Inventors: Jae-San Kim, Jeong-Hoon Kim, Un-Hwan Park, Yoon-Chul Song, Sang-Heun Oh