| 摘要 |
The present invention is a toy water gun for containment and ejection of water which includes a main housing, an ejection nozzle, a bladder housing, a bladder and an outlet connection which runs from the bladder to the nozzle. The expandable bladder is located in the bladder housing and has a first end connected to the outlet connection and has a carriage attachment located at the second end. The bladder carriage attachment is moveable in the bladder housing as the bladder is expanded. In one embodiment, the bladder has a variable diameter, larger at it's front end and smaller at it's back end. In another embodiment, the bladder has a constant diameter with a wall thickness gradient. Combined variable diameters and wall thickness may be used.
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