Fluidic dispensing device
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United States of America Patent
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-
Nov 13, 2018
Grant Date -
Jun 14, 2018
app pub date -
Dec 8, 2016
filing date -
Dec 8, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A fluidic dispensing device for dispensing a fluid has a body having a chamber with a perimetrical end surface. An ejection chip is attached to the body in fluid communication with the chamber. A diaphragm has a dome portion and a perimeter sealing surface. The perimeter sealing surface of the diaphragm is in sealing engagement with the perimetrical end surface of the chamber to define a fluid reservoir that contains the fluid. The diaphragm has a deflection axis that is substantially perpendicular to a plane of the perimeter sealing surface. The diaphragm has a cross-section profile that controls a deflection of the dome portion to collapse along the deflection axis in a direction that is at least one of toward or away from a plane of the perimeter sealing surface as the fluid is depleted from the fluid reservoir.
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