Patents by Inventor Yu-Chu Lu

Yu-Chu Lu 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: 20120085788
    Abstract: A container includes a container body, a rotation seat having a shaft tube, a plurality of limit bars mounted in the shaft tube, a threaded rod having a plurality of limit slots slidably mounted on the limit bars, an inner box having a receiving chamber which has an inner threaded portion screwed onto the threaded rod, a fixing cap having an outlet hole, a piston movably mounted in the receiving chamber and moved by the threaded rod, and an outer cover mounted on the fixing cap. Thus, the cream is compressed by rotation of the rotation seat so that a determined amount of cream is squeezed outward from the fixing cap. In addition, the space between the fixing cap and the receiving chamber is disposed at a vacuum state by the piston to prevent the cream from contacting the ambient air.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Inventor: Yu-Chu Lu