Patents by Inventor En-Hsin Liu

En-Hsin Liu 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: 20160295994
    Abstract: A cosmetic vacuum bottle includes: a bottle body with a mouth portion, a sealing member, a press member disposed at the mouth portion of the bottle body, and a piston being disposed in the bottle body. A first sealing surface of the sealing member is closely abutted against a first flat surface of the mouth portion to form a first sealing structure, a second sealing surface of the sealing member is abutted against an inner surface of the mouth portion to form a second sealing structure, and a third sealing surface is abutted against a pipe portion of the press member to form a third sealing structure. With the above three sealing structures, vacuum can be created in the bottle body simply by putting the sealing member and the press member to the mouth portion, without having to apply 10 kg torque.
    Type: Application
    Filed: April 8, 2015
    Publication date: October 13, 2016
    Inventor: En-Hsin LIU
  • Publication number: 20090120938
    Abstract: A cosmetic container includes a peripheral wall that defines an accommodating space and that has opposite first and second openings, a lid detachably connected to the peripheral wall to close the first opening, and a bottom wall detachably connected to the peripheral wall to close the second opening.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 14, 2009
    Inventor: En-Hsin Liu
  • Publication number: 20070110602
    Abstract: A pump includes a main body having upper and lower body parts that confine a chamber and an inlet, respectively, an inlet valve including a valve seat and a ball member seated movably on the valve seat to block fluid communication between the inlet and the chamber, a delivery shaft including a valve-control segment and a delivery segment that is formed with a channel to be disposed in fluid communication with the chamber, a piston disposed movably in the chamber, an elastic component disposed in the main body for providing a biasing force to move the valve-control segment of the delivery shaft away from the inlet valve, and a delivery tube operable to drive movement of the delivery shaft toward the inlet valve such that the valve-control segment forces the ball member to be seated on the valve seat.
    Type: Application
    Filed: November 17, 2005
    Publication date: May 17, 2007
    Inventor: En-Hsin Liu