Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Edgardo Campomanes0
Patrick Campomanes0
Date of Patent
September 18, 2007
0Patent Application Number
108555500
Date Filed
May 26, 2004
0Patent Primary Examiner
Patent abstract
This invention consists of the use of an evaporative foam riser made with expanded polystyrene and with a cavity on top that contains an exothermic mixture. The reaction of the exothermic material, which is set off when it comes in contact with the metal, prolongs the solidification time of the riser thus rendering it more effective.
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