Relief valves for sanitation systems or the like
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 21, 1985
Grant Date -
N/A
app pub date -
Feb 19, 1982
filing date -
Feb 21, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A relief valve for sanitation systems, said relief valve incorporating a valve seat 11, 25, within a valve chamber 5, 22, and a freely flexible valve element 12, provided for engagement with the valve seat 11, 25 to prevent inflow of air to the valve chamber 5, 22 through an air inlet 10, 26. Guide means 16, 17 are provided for assisting the valve element 12 into sealing engagement with the valve seat 11.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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