| 摘要 |
<p>A cap (18) for closing a threaded port (14) in a vessel (10) such as a pressure sprayer tank. A cup-shaped central portion of the cap (18) faces into the vessel when the cap (18) is installed onto the threaded port (14). The cup-shaped portion is provided with indicia indicative of volumes of material. In measuring use, the cap (18) is inverted, allowing the cup-shaped portion be used as a measuring cup to which material may be added. When the desired amount has been added, the cap (18) is re-invented to dump the material into the vessel (10). Preferably, the cup-shaped portion has a skewed rim (34) such that a portion of the rim forms a pouring lip.</p> |
