Filling device for the bottling of carbonated beverages

Claim 1

A filling device for dispensing carbonated liquid beverages into a container having an inlet opening positioned below said device comprising: a. a housing formed with a top wall (3), bottom wall (4) and side wall (2) and having an inlet opening (5) and a circular discharge opening (6) having an axis at its centerline and located in said bottom wall and having a diameter substantially equal to said container inlet opening; b. a discharge opening projection area defined by a series of parallel lines extending from said discharge opening to said top wall; c. a spiral chamber surrounding said axis of said discharge opening (6) and formed by said sidewall (2) having a spiral shape said top wall (3), and said bottom wall (4) and formed with a chamber inlet opening; d. a chamber radial cross sectional area defined by said side wall (2), top wall (3), bottom wall (4) and said projection area; e. a conduit (8) communicating with said inlet opening (5) and communicating tangentially with said side wall (2) of said chamber at said chamber inlet opening; f. said chamber is dimensioned so that said chamber cross sectional area is steadily reduced in the direction of flow over an angle of about 360° from a location at said chamber inlet (broken line in FIG. 2) to almost zero (broken line in FIG. 2); and g. a discharge passage communicating with said chamber and said discharge opening in said bottom wall of said housing and having a substantially uniform cross sectional area throughout its length, whereby liquid will exit said spiral chamber in a smooth unbroken flow with an angular component which causes the liquid to flow down the interior sides of the container due to the angular momentum imparted by the spiral chamber.