Vacuum extractor of a vacuum container
OwnerShiu Chu Tsayinventor
Life of this patent
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Abstract
A vacuum extractor mounted in an one-way valve in a lid of a container body of a vacuum container and adapted to extract air out of the vacuum container, including an extraction pump mounted in the one-way valve and driven to draw air away from the container body, a motor mounted in the lid, a reciprocating mechanism driven by the motor to reciprocate the extraction pump, causing it to draw air away from the container body, and a vacuum a detector mounted in the lid and adapted to detect the pressure of air in the container body, the vacuum detector connecting a power source to the motor when the pressure of air in the container body surpasses a predetermined high value, and cutting off the power source from the motor when the pressure of air in the container body drops below a predetermined low value.
Claims4
A vacuum extractor mounted in an one-way valve in a lid of a container body of a vacuum container and adapted to extract air out of said vacuum container, comprising:
- an extraction pump mounted in said one-way valve and driven to draw air away from said container body;
- a motor mounted in said lid;
- a reciprocating mechanism driven by said motor to reciprocate said extraction pump, causing it to draw air away from said container body;
- and
- a vacuum detector mounted in said lid and adapted to detect the pressure of air in said container body, said vacuum detector connecting a power source to said motor when the pressure of air in said container body surpasses a predetermined high value, and cutting off said power source from said motor when the pressure of air in said container body drops below a predetermined low value.
Dependencies are inferred from the claim text.