Method and apparatus for freezing dispensed droplets of liquid
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United States of America Patent
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Jan 9, 2024
Grant Date -
Jun 24, 2021
app pub date -
Jun 14, 2019
filing date -
Jun 20, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for freezing a liquid droplet includes dispensing, by a liquid dispenser (14), a droplet (13) of liquid into a fluid chamber (10) containing a freezing fluid (12). The droplet of liquid is allowed to dwell in the freezing fluid for at least a predetermined dwell time so that the droplet of liquid freezes to a frozen droplet. The method and apparatus further includes injecting, by a gas injector (17), a stream (16) of gas transversely to a surface of the freezing fluid at about where the frozen droplet is located along the surface of the freezing fluid contained in the fluid chamber so that the frozen droplet sinks in the freezing fluid.
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