Dispensing – Automatic control – Constant weight – volume or pressure control by output
Reexamination Certificate
2011-01-25
2011-01-25
Nicolas, Frederick C. (Department: 3754)
Dispensing
Automatic control
Constant weight, volume or pressure control by output
C222S001000, C222S061000, C222S063000, C222S146200, C222S146500, C222S255000, C222S333000, C137S884000
Reexamination Certificate
active
07874456
ABSTRACT:
A modular system, for delivering hot melt adhesive materials, comprises a modular metering assembly, having metering stations disposed therein, that is able to be attachably and detachably mounted upon a modular tank assembly. Alternatively, one or more of the metering stations may be disposed externally of the modular metering assembly, and alternatively still further, one or more additional modular metering assemblies may be attachably and detachably connected to the first modular metering assembly. Also disclosed is a closed-loop fluid pressure control system, for independently controlling the pressure of the hot melt adhesive material being conveyed to the metering devices, whereby the working pressures of the hot melt adhesive materials being conveyed to the metering devices can have different working pressures.
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Bolyard, Jr. Edward W.
MacLean Mairi
McGuffey Grant
Illinois Tool Works Inc.
Law Offices of Steven W. Weinrieb
Nicolas Frederick C.
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