Device for applying a coating agent

Coating apparatus – Control means responsive to a randomly occurring sensed... – Temperature responsive

Reexamination Certificate

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Details

C118S684000, C118S687000, C118S713000

Reexamination Certificate

active

07018476

ABSTRACT:
A device for applying a coating medium onto a substrate, includes at least one spray valve that has a nozzle opening that can be adjusted with regard to its effective outlet area using a closing mechanism, whereby the substrate can be moved past the spray valve, which can be supplied with the coating medium under pressure via a supply line, whereby the positioning device is assigned a regulator that has at least one target value input for the instantaneously required outflow rate of the coating medium from the spray valve and at least one actual value input for the mass flow rate through a supply section arranged in front of the nozzle opening, and from the deviation between these values, the regulator forms an adjustment signal that moves the positioning device in the direction to offset the deviation.

REFERENCES:
patent: 4922852 (1990-05-01), Price
patent: 5755882 (1998-05-01), Patrick
patent: 6423366 (2002-07-01), Falck et al.
patent: 6436556 (2002-08-01), Bleck et al.
patent: 6517891 (2003-02-01), Estelle et al.
patent: 2002/0079325 (2002-06-01), Estelle

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