Metering system for simultaneously dispensing two different adhesives from a single metering device or applicator onto a common substrate
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United States of America Patent
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Aug 1, 2017
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app pub date -
Aug 31, 2009
filing date -
Aug 31, 2009
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Abstract
A new and improved hot melt adhesive or other thermoplastic material dispensing system comprises two separate and independent rotary gear-type metering pumps with two separate and independent supply sources and fluid supply passageways, or two separate and independent sets of rotary gear-type metering pumps with two separate and independent supply sources and fluid supply passageways, which are able to independently output precisely metered amounts of the hot melt adhesive materials simultaneously onto a particularly substrate through suitable output devices so as to result in a multitude of different hot melt adhesive patterns and at different locations.
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