Method of filling a suspended particle display

Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver

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141 4, 141 7, B65B 3104

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active

052460428

ABSTRACT:
A method and apparatus are disclosed for controllably filling a confined optical cavity primarily with a volatile fluid suspension where a controlled slight pressure is used to force the fluid into the cavity and is followed by adjusting the equilibrium with a slight negative pressure or possibly atmospheric pressure applied at an exit port to the cavity. This method and apparatus is particularly suited to the filling of light valves which are configured with parallel plates positioned by very small distances between one another to create the cavity which is to be filled with the volatile fluid suspension.

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