Patents by Inventor Ma Lai San

Ma Lai San 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).

  • Publication number: 20090142986
    Abstract: A bubble-forming device includes a collapsible/expandable bubble-forming member (resilient ring, multi-link, or guillotine slides) movable between open and closed positions. A pump deposits bubble-making solution from a container to the bubble-forming member so that when expanded, a film forms across its opening. A blower blows air through a duct toward the opening to form bubbles. The bubble-forming member is anchored in a collection tub and includes a top connected to a lift, which is in turn pivoted to the duct and operably connected to a trigger. The trigger is slidably mounted on the air duct and configured to actuate the lift. The trigger also operates a switch that actuates a battery-operated motor to drive both the blower and the pump. Thus, actuation of the trigger mechanism causes the bubble-forming member to move from the closed position to the open position, as well as pumps solution and turns on the blower.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventor: Ma Lai San