Vacuum treatment unit

Details Vacuum treatment unit Vacuum treatment unit

1979-09-19

1981-05-12

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Evacuation apparatus

15353, 15413, 52749, 406170, B65B 304

Patent

active

042665817

ABSTRACT:
A vacuum treatment unit for removing excess water from newly poured concrete. The unit comprises a vacuum pump connectable to at least two suction mats or the like via separate suction pipes. So that the pump will always obtain sufficient cooling, the suction pipes are readily disconnectably connected to the suction mats and said pipes are connected at their other ends to the vacuum pump via a settable valve device so constructed that at least one of the pipes is always connected to the suction side of the pump.

REFERENCES:
patent: 1945145 (1934-01-01), Gordon
patent: 2226466 (1940-12-01), Heltzel
patent: 2244297 (1941-06-01), Heltzel

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