Systems and methods for automatic and continuous coating...

Details Systems and methods for automatic and continuous coating... Systems and methods for automatic and continuous coating...

2006-02-21

2006-02-21

Koch, George (Department: 1734)

Coating apparatus

Control means responsive to a randomly occurring sensed...

Responsive to attribute, absence or presence of work

C118S684000, C118S679000, C137S208000, C137S209000, C222S064000, C222S052000, C222S334000

Reexamination Certificate

active

07001466

ABSTRACT:
Systems and methods are disclosed for an automatic and continuous supply of coating material to a coating applicator in optical fiber fabrication. The present invention switches from one coating reservoir to another by way of a transitional period in which both coating reservoirs are supplying coating material to the coating applicator. For example, while an in-use reservoir is supplying the coating material to the coating applicator, a standby reservoir is being filled, settled to off gas air bubbles and then slowly pressurized. A sized orifice is used to slowly bleed off pressure from the in-use reservoir at a rate that does not allow the pressure in the in-use reservoir from falling out of a desired pressure range. When the in-use reservoir is substantially emptied of coating material and the pressures in both reservoirs are substantially equalized, then both reservoirs simultaneously supply coating material to the coating applicator for a period of time before switching completely over to the standby reservoir.

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patent: 6204304 (2001-03-01), Houlihan et al.
patent: 6817486 (2004-11-01), Yang

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