Spray charging and discharging system for polymer spray deposition device
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United States of America Patent
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Jan 30, 2018
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app pub date -
Dec 17, 2014
filing date -
Dec 17, 2014
priority date (Note) -
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Abstract
The disclosed spray deposition systems and methods use spray charging and discharging techniques to assist with digital deposition of spray droplets on a substrate. For example, the disclosed systems and methods have a charging system that generates spray droplets from a spray generator and charges the droplets. Focusing electrodes help to collimate the droplets into a tight droplet stream and, optionally, steering electrodes help direct the tight droplet stream. A charge removal system neutralizes or removes the charge from the droplets, either during the deposition of the droplets on a substrate or after the droplets have been deposited on a substrate.
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