Method and apparatus for duct sealing using a clog-resistant...

Coating processes – Interior of hollow article coating – Coating by vapor – gas – mist – or smoke

Reexamination Certificate

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C427S422000

Reexamination Certificate

active

07851017

ABSTRACT:
A method for forming a duct access region through one side of a previously installed air duct, wherein the air duct has an air flow with an air flow direction by inserting an aerosol injector into a previously installed air duct through the access region. The aerosol injector includes a liquid tube having a liquid tube orifice for ejecting a liquid to be atomized; and a propellant cap. The method is accomplished by aligning the aerosol injector with the direction of air flow in the duct; activating an air flow within the duct; and spraying a sealant through the aerosol injector to seal the duct in the direction of the air flow.

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