Vacuum sewer system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 5, 2002
Grant Date -
Apr 25, 2002
app pub date -
Aug 2, 2001
filing date -
Aug 7, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an arrangement in a vacuum sewer system, which comprises a sewer network having a sewage source and sewer piping adapted for receiving sewage from the sewage source. A liquid driven ejector device functions as a source of vacuum for the vacuum sewer system. In order to improve the efficiency of and to ensure the function of the ejector device, the ejector device forms a primary circuit, which is separated from a secondary circuit formed by the sewage collecting process.
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Cited Art Landscape
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