Patents Assigned to Smiley Chien
  • Patent number: 4930670
    Abstract: A pumping mechanism for a bottled lotion is constructed so that lotion is prevented from flowing out of the bottle if the bottle is inadvertently not placed upright. The pumping mechanism includes a hollow cylindrical member, a piston member, a hollow operating rod, a cap, a hollow pressing member, a ball, an upper valve, and a compression spring arranged in a manner so that when the operating rod is pressed downward, it will disengage the upper valve from the piston member before the bottom end thereof matches against the piston member.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: June 5, 1990
    Assignee: Smiley Chien
    Inventor: Frauk Kuo