Liquid hammer prevention device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 10, 2004
Grant Date -
May 9, 2002
app pub date -
Jul 3, 2001
filing date -
Jul 14, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid hammer prevention device has a casing led to a fluid channel via passage hole, an elastic cushion made of foamed material incorporated in the casing; and a diaphragm partitioning the inside of the into an area led to the fluid channel and another area incorporating the elastic cushion. The elastic cushion is 'Asker C 30 and 85' according to Japanese Industrial Standard S 6050 measured by the level gauge of a durometer 'Asker C,' and is 0.30-0.70 of apparent specific gravity.
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