Patent ID: 7434753

Claim:
A nozzle hub for securing a nozzle core comprising: a) a cylindrically shaped wall extending downward to an exterior groove, then outward to a break point defined by a hexagonal shape spaced apart from said exterior groove, downward there-from along the faces to an adjacent fund-us which has a hexagonal perimeter; b) a interior cylindrically shaped barrel wall made with a slight inward slant or cast and extends downward from the upper surface to said fund-us; c) a groove with a ledge defined by a vertical perimeter and a flare extending inward from said perimeter; d) a longitudinal slot descending along said hub set inward at an acute angle; e) a horizontal furrow intersecting said groove and spaced tangent to said ledge defined by said vertical perimeter and said flare extending inward from said perimeter; f) wherein there is a controlled ratio of diameter of said interior cylindrically shaped barrel wall made with a slight inward slant or cast measured at any elevation between tangency point at intersection of said flare extending inward from said perimeter and said fund-us to width of said longitudinal slot descending along said hub set inward at an acute angle measured at an identical elevation.