Patents by Inventor Jung Bai Hwang

Jung Bai Hwang 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).

  • Fan motor noise reduction device and vacuum cleaner with the same
    Patent number: 7788763
    Abstract: A vacuum cleaner includes a fan motor generating air current, a main body receiving the fan motor, a wheel allowing the main body to smoothly move, a flexible connecting hose extending from the main body, an expandable extending tube connected to the connecting holes, a suction nozzle connected to an end of the extending tube to suck outer air, an inner sound absorption member disposed around the fan motor to absorb noise generated by the fan motor, a casing disposed around the inner sound absorption member to enclose the fan motor, the casing being provided with an air hole through which the air is exhausted in a side direction of the fan motor, and an outer sound absorption member disposed around the casing to absorb the noise generated by the fan motor.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: September 7, 2010
    Assignee: LG Electronics Inc.
    Inventor: Jung Bai Hwang