Fluent material handling – with receiver or receiver coacting mea – Evacuation apparatus
Patent
1997-04-11
1998-09-15
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Evacuation apparatus
141 95, 141192, 99472, 417437, 22020301, 22020319, 220212, 215228, 215311, B65D 5116
Patent
active
058065750
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.
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