×

System for pollution suppression

  • US 4,035,301 A
  • Filed: 09/24/1975
  • Issued: 07/12/1977
  • Est. Priority Date: 04/23/1964
  • Status: Expired due to Term
First Claim
Patent Images

1. A surge suppression system for dampening surge pressures comprising,a force main carrying a liquid,a flat plate orifice, said flat plate orifice causing a downstream vena contracta portion in said liquid,said flat plate orifice located in said main,the diameter of said orifice ranging from about 0.7 to about 0.9 of the diameter of said main,an injector means for introducing an amount of a gas into said main,said injection means having a small pipe, said pipe having a tip,said gas flowing through said pipe tip,said pipe tip located in said vena contracta portion so that said gas is dispersed into said liquid,said small pipe tip being located at about 0.25 to about 0.5 main diameters downstream from said flat plate orifice,said vena contracta portion located in the central portion of said main,and the amount of said introduced gas being in excess of that required to saturate said liquid so as to dampen surge pressures.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×