Patent ID: 7549509

Claim:
A pulsation dampener for receiving a fluid medium comprising pressure pulsations, the pulsation dampener comprising: a body having an inlet end and an outlet end, the inlet end having an inlet having a first cross-sectional area and the outlet end having an outlet; and a fluid path defined at least partially by the body and extending between the inlet and the outlet, the fluid path including: a first contracting chamber positioned adjacent the inlet and having a second cross-sectional area, the second cross-sectional area being the minimum of the first contracting chamber, a first expansion chamber positioned adjacent the first contracting chamber and having a third cross-sectional area, the third cross-sectional area being the maximum of the first expansion chamber, the second cross-sectional area and the third-cross sectional area each being measured immediately adjacent a junction of the first contracting chamber and the first expansion chamber, and a second contracting chamber positioned adjacent the first expansion chamber and having a fourth cross-sectional area, wherein the second cross-sectional area is less than the first cross- sectional area and the third cross-sectional area, and the fourth cross-sectional area is less than the third cross-sectional area.