Patents by Inventor Tung-Hai Lan

Tung-Hai Lan 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: 5377778
    Abstract: An emergency corridor and ladder for multi-storied building comprising a bridge corridor, a safety ladder and a temporary emergency shelter. The structure is provided in each floor of the multi-storied building. The bridge corridor is connected to the emergency exit on each floor, both sides of the bridge corridor are respectively provided with a fire-blocking wall, and a safety ladder is provided along the bridge corridor such that the safety ladder are connected together from the top floor to the ground level. Said safety ladder has a passage to the sun deck of the emergency shelter. A feed through emergency escape rod is provided in the emergency shelter in which a man hole is opened in alternate floors. Rescuers gain access to the emergency shelter and rescue the casualty during an emergency. The man hole can also be used to cooperate with the emergency escape rod so that people can slide down to the ground level. In addition, an intermediate wall is provided for an upper an a lower safety ladder.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: January 3, 1995
    Inventor: Tung-Hai Lan