Importance

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Abstract

Gas injection apparatuses include a gas module, a coupling module, and a blending module. The gas module has a gas inlet, a gas outlet, and a first gas sub-chamber that is in fluid communication with the gas inlet and the gas outlet. The coupling module has a second gas sub-chamber, and is couplable with the gas module such that the first gas sub-chamber and the second gas sub-chamber together form a primary gas chamber having a first cross sectional size. The blending module is couplable to the coupling module and has a gas reduction chamber that is fluidly connected to a fluid dispensing passageway by a gas delivery orifice. The gas reduction chamber has a second cross sectional size that is less than the first cross sectional size, and the gas delivery orifice has a third cross sectional size that is less than the second cross sectional size.

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First Claim