Patent ID: 7044440

Claim:
An outfall valve comprising: a casing having an exterior wall provided with a coupler, an inner end of said coupler being provided with a first opening, a circle of hollow flow path being provided along said first opening; a hollow pipe connected with said casing and having a first end provided with a hook and a second end provided with a plurality of exterior threads, said hollow pipe being rotatable in 360 degrees with respect to said casing, a barrier edge being protrudingly provided adjacent said threads, a second opening going through an interior flow path of said hollow pipe, a first peripheral groove provided between said barrier edge and said hook and positioned at one side of said second opening, a second and third peripheral grooves provided between said barrier edge and said hook and positioned at another side of said second opening, each of said peripheral grooves being mounted with an O-ring, said hollow pipe being slidably fitted in said casing and movable between said barrier edge and said hook, combination of said casing and said hollow pipe forming an angle from 60 to 135 degrees; and a nozzle engaged with said exterior threads of said second end of said hollow pipe, said nozzle having a front end provided with a crevice.