Patent ID: 9605422
Date: 2017-03-28
CPC Classifications: B01D,E03F

Claim:
1. A storm water catch basin automatic valve assembly reactive to the presence of hazardous liquids chosen from the group of hazardous liquids consisting of gasoline and oil, said valve assembly comprising: a spring-operated float valve comprising a float release member; a hazardous liquid sump comprising an open top and depending from a separation floor, said float release member being disposed within said hazardous liquid sump; a hydrophobic nanoparticle barrier member positioned on said separation floor adjacent said open top of said hazardous liquid sump; whereby water present on said separation floor is precluded by said hydrophobic nanoparticle barrier member from passing into said hazardous liquid sump, and whereby said hazardous liquids present on said separation floor pass across said hydrophobic nanoparticle barrier member into said hazardous liquid sump, thereby raising said float release member to actuate said spring-operated float valve and stop flow of storm water through said valve assembly.