发明名称 Waste water conveyance apparatus
摘要 An arrangement for conveyance of waste water or liquid by vacuum operation, including a vertically movable container in which the waste water is collected. By causing the weight of the liquid to surmount a spring force and a force originating from the vacuum in the pipeline system an inlet for the waste water is opened. The waste water present in the container is then drawn into the conduit system by means of the vacuum present therein.
申请公布号 US4280528(A) 申请公布日期 1981.07.28
申请号 US19800138504 申请日期 1980.04.09
申请人 AKTIEBOLAGET ELECTROLUX 发明人 SODERSTROM, SIGVARD V.
分类号 E03F7/00;E03F1/00;E03F9/00;(IPC1-7):F16K21/00 主分类号 E03F7/00
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