| 摘要 |
<p>The hose aerator (10) has a supporting pipe (14) fitted at one end with a connector (15, 16) for an air supply plant (12). At least part of the length of the supporting pipe (14) is surrounded by a flexible aeration hose (27), both ends of which are hermetically connected to the supporting pipe (14) and which has a number of holes or slots in its wall in the region between them. In the region of the aeration hose (27) the supporting pipe (14) has at least one through aperture (23) coupled to the connector (15, 16). The outside of the supporting pipe (14) takes the form of a cylindrical jacket, the curvature of which is smaller in the crown region (12) than in the two adjoining side regions (21, 23)</p> |
