| 摘要 |
An aerosol dispensing system includes a metal cylindrical can having a plurality of wide and narrow recesses in an upper undulating portion and a smooth walled lower portion. A plastic spray dome snap-fits over the top of the metal can and includes a trigger actuator movable against a valve assembly for releasing concentrate and propellant maintained under pressure within the can. The annular recesses are ergonomically located to fit the thumb and fingers of the hand when the index finger is located on the actuator. The annular recesses are preferably recessed into the otherwise straight-walled can but can take a variety of other shapes.
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