| 摘要 |
<p>PCT No. PCT/NL92/00070 Sec. 371 Date Dec. 9, 1993 Sec. 102(e) Date Dec. 9, 1993 PCT Filed Apr. 14, 1992 PCT Pub. No. WO92/18714 PCT Pub. Date Oct. 29, 1992.Sewage system comprised of a collector pipe with one or more house connections and to which collector pipe an air compressor and/or vacuum pump is connected, wherein a house connection is comprised of a collection gully with a connection for the sewer pipe, and which gully, at its bottom side is provided with a valve, which may be operated under the control of a level switch arranged in the gully, while the valve at the discharge side is connected to the collected pipe which at that place is provided with a bend situated in a vertical plane, to the middle part of which the valve is connected and from which both the sideways running bend parts run upwards to a height below the valve.</p> |
