PORVAIR PLC Patent applications |
Patent application number | Title | Published |
20140348693 | Matrix Riser Breaker Insert - A casting system for molding metal. The casting system has a mold comprising a cavity in a predefined shape. A riser in flow communication with the mold wherein the riser provides molten metal to said cavity as the molten metal freezes. A riser breaker insert is between the mold and the riser wherein the riser breaker insert comprises voids. A molten metal supply is provided which is capable of filling the mold and the voids of said riser breaker insert and at least partially filling the riser. | 11-27-2014 |
20120175804 | LOW EXPANSION CORROSION RESISTANT CERAMIC FOAM FILTERS FOR MOLTEN ALUMINUM FILTRATION - A ceramic foam filter for molten aluminum alloys comprising an alumina silicate rich core and a boron glass shell and a chemical composition comprising: 20-70 wt % Al | 07-12-2012 |
20100113244 | LOW EXPANSION CORROSION RESISTANT CERAMIC FOAM FILTERS FOR MOLTEN ALUMINUM FILTRATION - A ceramic foam filter for molten aluminum alloys comprising an alumina silicate rich core and a boron glass shell and a chemical composition comprising: 20-70 wt % Al | 05-06-2010 |