Vacuum sewage system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 15, 1981
Grant Date -
N/A
app pub date -
Sep 5, 1980
filing date -
Sep 7, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vacuum sewage system, comprising a collection tank, in which the sewer waste arrives with the aid of vacuum through an entrance pipe and from which it departs from time to time through an exit pipe. The arrival and removal of the sewer waste has been arranged to take place with the aid of one pump. The entrance pipe terminates within the collection tank at a minor distance from the intake aperture of the pump.
First Claim
Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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