Patent ID: 7121536

Claim:
An aerator, comprising: an intake housing comprising a first opening, a second opening vertically spaced from said first opening, and an annular intake housing inner surface that extends between said first and second openings and that comprise a convergent section that converges in a direction of said second opening; a discharge housing vertically spaced from said intake housing and comprising a third opening, a fourth opening vertically spaced from said third opening, and an annular discharge housing inner surface that extends between said third and fourth openings, wherein said discharge housing inner surface comprises a divergent section that diverges in a direction of said fourth opening; a conduit interconnecting said second opening of said intake housing and said third opening of said discharge housing, wherein said first opening of said intake housing is disposed at a greater depth in a fluid body than said fourth opening of said discharge housing when said aerator is disposed within the fluid body; at least one gas injector disposed vertically under and spaced from said convergent section of said intake housing inner surface; and a wave generator.