System for dispensing polyurethane and the like

Details System for dispensing polyurethane and the like System for dispensing polyurethane and the like

1974-10-07

1976-08-24

Reeves, Robert B.

Dispensing

With heating or cooling means

Cooling only

219307, 219328, B67D 562

Patent

active

039762300

ABSTRACT:
A polyurethane foam dispensing system wherein electrical lines in the conduits thereof are used to controllably heat the foam precursor materials and to maintain such material at optimum temperature for foam formation. A thermistor at the dispensing end of such conduits senses the temperature of the throughput material and controls the heating element(s) by feedback therefrom.

REFERENCES:
patent: 2833909 (1958-05-01), Levey
patent: 2890836 (1959-06-01), Gusmer et al.
patent: 3097288 (1963-07-01), Dunlap
patent: 3263928 (1966-08-01), Gusmer
patent: 3687370 (1972-08-01), Sperry
patent: 3770938 (1973-11-01), Agarate

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