| 摘要 |
<p>[0123] A dispensing valve (2OA, 20B) is provided for dispensing a fluid substance. The dispensing valve (2OA, 20B) is pressure-responsive, and may be of a self-closing type, or define a central discharge aperture (49A) through which a substance being dispensed flows. A substance contact surface of the dispensing valve (2OA, 20B) defines one or more projections (6OA, 60B) and/or recesses which can cooperate with the substance being dispensed to impart a contoured or shaped cross-sectional configuration to the substance. A decorative effect can thus desirably be achieved, enhancing the aesthetic appeal of the dispensed substance, such as a whipped dessert topping, toothpaste, foamed construction material, etc.</p> |
