F - Mech Eng,Light,Heat,Weapons – 41 – B
Patent
F - Mech Eng,Light,Heat,Weapons
41
B
F41B 9/00 (2006.01) A63H 33/30 (2006.01)
Patent
CA 2486645
An expandable bladder toy water gun is provided. It includes a main housing having a barrel, a water ejection nozzle, a handle, a trigger, a water storage tank, a hand pump as well as an inflatable bladder connected to the main housing. The pump is connected to both the tank and the bladder. There is a bladder release valve with an upstream side connected to the bladder and a downstream side connected to the nozzle for water ejection when the trigger is pulled. The elasticity of the bladder is used as the motive force for liquid ejection. The bladder is a tubular member which has a section of weakened elastic strength relative to the remainder of the member. In one embodiment, the bladder has a variable diameter, larger at its front end and smaller at its back end. In another embodiment, the bladder has a constant diameter with a wall thickness gradient. The nozzle includes a turbulence member for enhanced laminar flow ejection which control member has a plurality of linear stream guidance walls.
Gowling Lafleur Henderson Llp
Larami Limited
LandOfFree
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