Patents Represented by Attorney, Agent or Law Firm Sung Oh
  • Patent number: 6193115
    Abstract: An exemplary reusable mist sprayer according to the present invention includes a container with an opening which has double walls that is vacuum sealed between the walls to provide insulation from the atmosphere. The exemplary sprayer also includes a plunger to pump atmospheric air into the container. The plunger respectively has a hole and hollow opening at the opposing ends, the hole provides a path for atmospheric air to enter the interior space of the plunger. Enclosing the opening of the container is a removable dispenser mechanism having a protruding end adapted to receive the hollow opening of the plunger, and a flange adapted to removably seal the opening of the container. A one-way valve is associated with the protruding end, which only opens to allow the air within the interior space of the plunger to enter the container as the plunger is being pressed relative to the protruding end.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: February 27, 2001
    Inventor: Ajit Kumar Das