Thermal barrier for hot glue adhesive dispenser

Details Thermal barrier for hot glue adhesive dispenser Thermal barrier for hot glue adhesive dispenser

B - Operations, Transporting

05

D

B05D 1/26 (2006.01) B05C 5/00 (2006.01) B05C 9/14 (2006.01)

Patent

CA 2147235

THERMAL BARRIER FOR HOT GLUE ADHESIVE DISPENSER Abstract of the Disclosure An apparatus (10) for dispensing hot melt adhesives includes an air gap (100) in the body (16) of the dispenser (10). The apparatus (10) includes a heater (80), a temperature sensing device (RTD) (82) and adhesive passageway (84) located within the body (16) of the dispenser (10). The dispenser (10) delivers heated adhesive to a gun body (12) where it is applied to a substrate. The air gap (100) is interposed between the heater (80) and the adhesive passageway (84) and directs a majority of the heat generated by the heater (80) toward the gun body (12) and toward regions of the apparatus (10) needing additional heating. The air gap (100) enables a desired temperature gradient within the dispenser (100) to be maintained and prevents localized heating or cooling, thus decreasing the possibility that the adhesive will coagulate and plug the dispenser (10).

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