Container capable of being evacuated by rotating a cap member thereof
OwnerChin-Der Changinventor
Life of this patent
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Abstract
A container includes a container body, a cap member, a disk member and an evacuating unit. The cap member is mounted on a top open end of the container body and is rotatable about a vertical axis. The disk member is provided beneath and inside the cap member to sealingly close the top open end. The disk member has a downward hollow mounting portion in fluid communication with the top open end. The evacuating unit is operable by the cap member for evacuating air from the container body, and is coupled with the disk member. The evacuating unit has a piston mounted on the downward hollow mounting portion. The piston is movable upward and downward in the downward hollow mounting portion via rotation of the cap member so as to suck out air from the container body.
Claims15
A container comprising:
- a container body having a top open end;
- a cap member mounted on said top open end of said container body and rotatable about a vertical axis;
- a disk member provided beneath and inside said cap member to sealingly close said top open end, said disk member having a downward hollow mounting portion in fluid communication with said top open end;
- and
- evacuating means operable by said cap member for evacuating air from said container body and coupled with said disk member, said evacuating means having a piston mounted in said downward hollow mounting portion, said piston being movable upward and downward in said downward hollow mounting portion via rotation of said cap member so as to suck out air from said container body during said rotation.
Dependencies are inferred from the claim text.