Patents Assigned to Han Chi Hang Co., Ltd.
  • Auto turning-off humidifier
    Patent number: 4853161
    Abstract: An auto turning-off humidifier having a water sensor with a sensing needle that can automatically function to cut off electricity if the water in the hollowed space of the base becomes less and cannot be touched by the sensing needle.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: August 1, 1989
    Assignee: Han Chi Hang Co., Ltd.
    Inventor: Koa-Cherng Huang