Coating system and method for e-coating and degasification of e-coat fluid during e-coat

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United States of America Patent

PATENT NO 11692278
APP PUB NO 20210172083A1
SERIAL NO

16769211

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Abstract

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A coating system includes an electrocoat (e-coat) bath having an e-coat fluid with a first amount of dissolved gases, a plurality of ultrasonic transducers mounted on at least two sides of the e-coat bath, a carrier frame and control circuitry. The control circuitry is configured to control a trajectory of a metal part dipped in the e-coat bath using the carrier frame, control the plurality of ultrasonic transducers to direct a plurality of acoustic waves at a defined ultrasonic operating frequency and at a first intensity to cause a plurality of localized pressure drops in the e-coat fluid, the first amount of dissolved gases is reduced or removed as bubbles from the e-coat fluid of the e-coat bath based on the directed plurality of acoustic waves, and increase the first intensity of the directed plurality of acoustic waves over a defined time period to accelerate dispersion of an e-coat pigment.

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Patent Owner(s)

Patent OwnerAddress
TESLA INC1 TESLA ROAD AUSTIN TX 78725

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Agarwal, Gunjan Mountain View, US 4 1
Avudaiappan, Sundaresan Sunnyvale, US 5 1
Lillywhite, Christopher Pleasanton, US 2 0

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