Waterhammer suppression apparatus
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United States of America Patent
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-
Apr 8, 2003
Grant Date -
Aug 29, 2002
app pub date -
Feb 25, 2002
filing date -
Feb 26, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Phenomena in water systems caused by hydraulic transients known as 'waterhammer' are suppressed by surge vessels containing crushable, cellular, polymeric materials such as polyethylene, polyurethane and polystyrene foam. The foam may be one piece or in the form of several separate particles contained in nylon netting. A water permeable screen is located between a nozzle connection and the cellular polymeric materials for retaining the materials in the surge vessels as the water flows into and out of the vessels. The foam occupies much of the volume in the surge vessels not occupied by the water and the gas contained in the foam can not readily dissolve into the water.
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