Patents by Inventor Pan Ju Na

Pan Ju 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).

  • Patent number: 9409042
    Abstract: An emergency escape device includes an escape hole cap fitted from above to an escape hole of a fire evacuation area of a high-rise building so as to cover an inner edge of the escape hole, a guide unit vertically installed to extend above and below the escape hole cap, a descending unit positioned below the escape hole cap and slidably attached to the guide unit in such a manner as to descend along the guide unit, a slowing unit configured to ensure that the descending unit descends along the guide unit at a reduced speed, and a returning unit for returning the descending unit descended along the guide unit to an original position. The emergency escape device may further include a locking unit for keeping the descending unit against downward movement in an upper portion of the guide unit.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: August 9, 2016
    Assignee: ASIA FIRE PROTECTION CO., LTD.
    Inventor: Pan Ju Na
  • Publication number: 20130206509
    Abstract: An emergency escape device includes an escape hole cap fitted from above to an escape hole of a fire evacuation area of a high-rise building so as to cover an inner edge of the escape hole, a guide unit vertically installed to extend above and below the escape hole cap, a descending unit positioned below the escape hole cap and slidably attached to the guide unit in such a manner as to descend along the guide unit, a slowing unit configured to ensure that the descending unit descends along the guide unit at a reduced speed, and a returning unit for returning the descending unit descended along the guide unit to an original position. The emergency escape device may further include a locking unit for keeping the descending unit against downward movement in an upper portion of the guide unit.
    Type: Application
    Filed: March 29, 2011
    Publication date: August 15, 2013
    Applicant: ASIA FIRE PROTECTION CO., LTD.
    Inventor: Pan Ju Na