Agitating – With heating or cooling – Including temperature control
Patent
1977-09-07
1979-10-16
Gilreath, Stanley N.
Agitating
With heating or cooling
Including temperature control
366146, 366159, 366160, B01F 1504, B01F 1506
Patent
active
041711637
ABSTRACT:
The invention relates to apparatus for use in the production of mouldings of a plastics material which initially consist of at least two liquid components which have to be intimately mixed before introduction into a mould. Such an apparatus comprises a mixing head, and for each component to be mixed, a reservoir tank, a pump for supplying the component from the reservoir tank to the mixing head, and a valve at the mixing head operable to direct the component either into the mixing head or back to the tank. To keep the lengths of connecting pipes short, the reservoir tanks, the pumps, and the valves are arranged as a compact unit in close proximity to the mixing head, and in a preferred arrangement, the mixing head, the pumps, the valves and the tanks are mounted in or on a metal block which is formed with ducts through which the components flow.
The metal block, and if necessary the reservoir tanks and the pumps, may be provided with electric heating elements and thermostats to ensure the components are each maintained at the required operating temperature, and by running the pumps for a time before a mixing operation uniformity of temperature of each component throughout the system is ensured.
REFERENCES:
patent: 3026183 (1962-03-01), Cole
patent: 3051455 (1962-08-01), Magester
patent: 3092469 (1963-06-01), Jaffe et al.
patent: 3128995 (1964-04-01), Shaeffer
patent: 3180350 (1965-04-01), Rill, Jr. et al.
patent: 3424439 (1969-01-01), Baker
patent: 3905582 (1975-09-01), Fiorentini
patent: 3964731 (1976-06-01), Ernst
patent: 4070008 (1978-01-01), Schlieckmann
C. & J. Clark Ltd.
Gilreath Stanley N.
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