| 摘要 |
<p>A beverage foaming device or "widget" comprises a cylindrical container (2) with two ends, one end being closed by an integral first end plate (10) and the other end being closed by a cover (6) in which an aperture (26) is formed. The aperture (26) is situated, in use, below the surface of a carbonated beverage in a beverage container. The cylindrical container (2) also contains a piston (4), whose outer edge (22) forms a substantially liquid-tight seal in with the interior surface of the container (8) and which is slidably received within the cylindrical container (8). The foaming device further includes an abutment (16), which is integral with the inner surface of the first end plate (10) and is arranged to limit the movement of the piston (4) within the container (2) in the direction away from the cover (6).</p> |
