Concrete pumping apparatus

Details Concrete pumping apparatus Concrete pumping apparatus

1978-05-10

1980-04-22

Schwadron, Martin P.

Fluid handling

With heating or cooling of the system

Circulating fluid in heat exchange relationship

1510406A, 222146H, 137334, F16K 4900

Patent

active

041990021

ABSTRACT:
This invention relates to an improved concrete pumping apparatus, in particular of the truck-mounted type and adapted to operate at low environmental temperatures.
Said apparatus comprises means which define an essentially closed circuit for circulation of the cooling air of the auxiliary engine controlling the pumping group in heat exchange contact with apparatus components disposed in separate bays to be maintained within well defined temperature ranges above the temperature of the environment, and means for independently adjusting and maintaining the air temperature in each bay. The engine exhaust gases are used to preheat the casting tube.

REFERENCES:
patent: 1433713 (1922-10-01), Fricker
patent: 2578080 (1951-12-01), Middlestadt
patent: 3106344 (1963-10-01), Band, Jr. et al.
patent: 3108012 (1963-10-01), Curtis
patent: 3279383 (1966-10-01), Smith
patent: 3394025 (1968-07-01), McCune
patent: 3570526 (1971-03-01), Fisco, Jr.
patent: 3714960 (1973-02-01), Yamada
patent: 3735769 (1973-05-01), Miller

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