Patents by Inventor Hwan Chang Kil

Hwan Chang Kil 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).

  • Switching mechanism for motor protection circuit breaker
    Patent number: 8217287
    Abstract: A switch for a motor protection circuit breaker capable of reducing a force required to adjust a handle and capable of enhancing the reliability to break a circuit. The switch includes a push link having an outer circumferential curved surface of a varying cam profile, so as to enhance a function to break the circuit by pressing movable contact plates.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: July 10, 2012
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Hwan-Chang Kil
  • Arc extinguishing device of circuit breaker for manual motor starter
    Patent number: 8097824
    Abstract: Disclosed is an arc extinguishing device of circuit breaker for manual motor starter capable of swiftly extinguishing and discharging an arc generated by a fault current flowing into a motor circuit during an interruption operation of a circuit breaker, thereby enhancing the performance of interruption.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: January 17, 2012
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Hwan Chang Kil
  • SWITCHING MECHANISM FOR MOTOR PROTECTION CIRCUIT BREAKER
    Publication number: 20100059350
    Abstract: Disclosed is a switching mechanism for a motor protection circuit breaker capable of reducing a force required to adjust a handle, and capable of enhancing the reliability to break a circuit. The switching mechanism for a motor protection circuit breaker comprises a push link having an outer circumferential curved surface of a varying cam profile, so as to enhance a function to break the circuit by pressing movable contact plates.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 11, 2010
    Applicant: LS INDUSTRIAL SYSTEMS CO., LTD.
    Inventor: Hwan-Chang Kil
  • ARC EXTINGUISHING DEVICE OF CIRCUIT BREAKER FOR MANUAL MOTOR STARTER
    Publication number: 20090057273
    Abstract: Disclosed is an arc extinguishing device of circuit breaker for manual motor starter capable of swiftly extinguishing and discharging an arc generated by a fault current flowing into a motor circuit during an interruption operation of a circuit breaker, thereby enhancing the performance of interruption.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Inventor: Hwan Chang Kil