Sap collection system and sap lifter therefor
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United States of America Patent
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Feb 14, 2023
Grant Date -
Nov 18, 2021
app pub date -
May 12, 2021
filing date -
May 13, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention generally related to a maple sap lifter configuration and to a sap collection system making use of the sap lifter. The system includes a vacuum pump, a number of pipes, and the sap lifter. The sap lifter includes a body; an inlet for conveying sap towards the sap lifter; a first outlet for conveying the sap away from the sap lifter; and a pump operatively coupled to the pipes and adapted to pump the sap away from the body once a maximum level of sap is reached, and wherein the maximum level of sap is set to leave an air space in the body and in the pipes for maintaining the level of constant vacuum. The sap lifter and the pipes alternatively define a closed-circuit with no fluid communication with ambient air for maintaining the level of constant vacuum.
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