Wenderoth, Lind & Ponack
Apparatus for making cooled concrete
 The apparatus for making cooled concrete of this invention produces cooled fresh concrete by cooling the aggregate (or gravel). The aggregate is cooled by immersion in a cooling water bath accommodated in a cooling water tank. The cooling water in the tank is cooled by a heat exchanger, which in turn is cooled by a forced cooling device. The aggregate is immersed into the cooling water bath by a supply and ejection apparatus, which also removes the cooled aggregate from the cooling water bath. The cooled aggregate is supplied to a cement mixer where it is mixed to become cooled fresh concrete. 
I. P. Co., Ltd. Ushio Co., Ltd.
B
B28C
inventional
Masayuki Ryuzo
Takeuchi Yamada