Patents by Inventor Ki Cheol Na

Ki Cheol Na 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).

  • Conductor base and finger module of air circuit breaker
    Patent number: 8123553
    Abstract: A conductor base coupled to a finger module of an air circuit breaker. Since the connector of the conductor base has the curved surface formed on a side of an end portion thereof and tooth-coupled with the contactor of the finger module, the contactor of the finger module has another curved surface corresponding to the curved surface of the connector and the contactor is elastically supported in a vertical direction by the plate spring to allow both end portions of the contactor to perform a vertical elastic movement relative to a longitudinal center of the contactor. The present invention can prevent damages due to a mechanical impact between the connector of the conductor base and the contactor of the finger module, which may occur while the breaker terminal is inserted into the finger module, to thereby extend the lifespan of the conductor base and the finger module.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: February 28, 2012
    Assignee: LS Industrial Systems Co., Ltd.
    Inventors: Gae Goo Lyu, Ki Cheol Na, Myoung Soo Kim, Hyun Jae Kim
  • CONDUCTOR BASE AND FINGER MODULE OF AIR CIRCUIT BREAKER
    Publication number: 20100105255
    Abstract: A conductor base coupled to a finger module of an air circuit breaker. Since the connector of the conductor base has the curved surface formed on a side of an end portion thereof and tooth-coupled with the contactor of the finger module, the contactor of the finger module has another curved surface corresponding to the curved surface of the connector and the contactor is elastically supported in a vertical direction by the plate spring to allow both end portions of the contactor to perform a vertical elastic movement relative to a longitudinal center of the contactor. The present invention can prevent damages due to a mechanical impact between the connector of the conductor base and the contactor of the finger module, which may occur while the breaker terminal is inserted into the finger module, to thereby extend the lifespan of the conductor base and the finger module.
    Type: Application
    Filed: January 4, 2010
    Publication date: April 29, 2010
    Inventors: Gae Goo Lyu, Ki Cheol Na, Myoung Soo Kim, Hyun Jae Kim
  • CONDUCTOR BASE AND FINGER MODULE OF AIR CIRCUIT BREAKER
    Publication number: 20080113551
    Abstract: Disclosed therein are a conductor base and a finger module of an air circuit breaker. Since the connector of the conductor base has the curved surface formed on a side of an end portion thereof and tooth-coupled with the contactor of the finger module, the contactor of the finger module has another curved surface corresponding to the curved surface of the connector and the contactor is elastically supported in a vertical direction by the plate spring to allow both end portions of the contactor to perform a vertical elastic movement relative to a longitudinal center of the contactor, the present invention can prevent damages due to a mechanical impact between the connector of the conductor base and the contactor of the finger module, which may occur while the breaker terminal is inserted into the finger module, to thereby extend the lifespan of the conductor base and the finger module.
    Type: Application
    Filed: October 16, 2007
    Publication date: May 15, 2008
    Inventors: Gae Goo Lyu, Ki Cheol Na, Myoung Soo Kim, Hyun Jae Kim