Device and method for pumping low evaporation products under vacuum
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United States of America Patent
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Oct 24, 2023
Grant Date -
N/A
app pub date -
Nov 29, 2021
filing date -
Nov 30, 2020
priority date (Note) -
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Abstract
The device for pumping products from a pumping area (2) to an enclosure (3) comprises two tanks, a transfer system (8) which generates a suction of the products from the pumping area (2) to the tanks (4A, 4B) and a transfer of the non-gaseous products from the tanks (4A, 4B) to the enclosure (3), valves (3A, 3B, 3D, 3D, 3I, 4C, 4D, 4I, 4J) to, alternately, allow or block the communication from one tank (4A, 4B) to the pumping area (2) and a communication from the other tank (4A, 4B) to the enclosure (3), and a control system (25). The transfer system (8) comprises a suction unit (13) provided with hydro-ejectors (13A, 13B) connected to each tank (4A, 4B) and generating the suction of the products and a transfer unit (20) provided with a pump connected to the tanks (4A, 4B) to transfer non-gaseous products to the enclosure (3).
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