Patents by Inventor Kwon EunJin

Kwon EunJin 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).

  • PIT SWITCH MODULE OF LANDING DOOR OF ELEVATOR
    Publication number: 20180162689
    Abstract: A pit switch module of elevator landing door for switching a mode of elevator between an inspection mode and a normal mode comprises a pit switch arranged that ON/OFF operation is configured to be done by an operator at a landing at the state when the elevator landing door has been closed such that the mode of elevator is switched before the operator enters a hoistway or after the operator leaves the hoistway.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 14, 2018
    Inventors: Yong Hun Kim, Jong-Kon Bae, Kwon EunJin, Jusik Kim