Devices and methods for dispensing a cryogenic fluid
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United States of America Patent
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Feb 11, 2014
Grant Date -
Dec 23, 2010
app pub date -
Jun 23, 2009
filing date -
Jun 23, 2009
priority date (Note) -
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Abstract
A dispensing head for dispensing a cryogenic fluid may comprise a flow passage configured to be placed in flow communication with a reservoir containing a cryogenic fluid, the flow passage defining a flow passage inlet opening configured to receive the cryogenic fluid from the reservoir, and a flow passage outlet opening opposite the flow passage inlet opening. The dispensing head may further comprise a dispensing member configured to dispense the cryogenic fluid, the dispensing member defining a lumen having a lumen inlet opening and a lumen outlet opening; and at least one porous member disposed in the flow passage, the at least one porous member being configured as a primary flow regulation mechanism to limit a flow rate of the cryogenic fluid as it flows from the reservoir to the lumen outlet opening.
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