Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Organic polymerization
Patent
1978-04-28
1981-01-20
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Organic polymerization
521917, B01J 402, B01J 1926
Patent
active
042462304
ABSTRACT:
A system and method is disclosed for continuously producing and dispensing foam material including storage containers with respective delivery lines for delivering, via separate motor driven pumps, a foaming agent solution and curable synthetic resinous material to a mixing gun. An air compressor supplies compressed air which is first heated and then directed to the mixing gun wherein the components are mixed in the proper proportions to produce and dispense foam to the point of placement. The system includes an electric motor which conjointly drives the separate pumps which supply the constituent materials to the mixing gun under predetermined constant pressures and continuous flow conditions so as to produce a homogeneous and continuous foam product of desired density generally free of streaks and inconsistencies. In one embodiment, pumping of the materials is accomplished by conjointly driven diaphragm piston-type pumps connected to a gear box of desired gear ratio and driven by the electric motor in a manner to provide high torque with relatively low motor power. In a second embodiment, pumping is accomplished by conjointly driven gear pumps in which at least one gear is of a type having internal teeth for pumping.
REFERENCES:
patent: 2779689 (1957-01-01), Reis
patent: 2885268 (1959-05-01), Breer et al.
patent: 3231363 (1966-01-01), Renner
patent: 3627275 (1971-12-01), Gusmer
patent: 3740355 (1973-06-01), Klug
patent: 3960506 (1976-06-01), Schmitzer
patent: 4115066 (1978-09-01), Muhle
patent: 4170440 (1979-10-01), Gusmer et al.
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