| 摘要 |
PURPOSE:To eject a definite amount of a liquid and air in a foamy state by providing a porous body composed of an elastic material in a nozzle part in an extensible manner and providing a pressure control valve for keeping the pressure in a container constant in an introducing pipe to make the size of an ejected air bubble alterable. CONSTITUTION:The liquid stored in a hermetically closed container 21 is pressurized by a pump 23, and this pressurized liquid in the container 21 and air are introduced into a spray apparatus main body 22 from an introducing pipe 24 to be ejected in a foamy state from a nozzle part 25. A porous body 31 composed of an elastic material is provided in the nozzle part 25 in an extensible manner and a pressure control valve 33 for keeping the pressure in the container 21 constant is arranged to the introducing pipe 24. As a result, the size of the air bubble ejected from the nozzle part can be arbitrarily changed and a definite amount of the liquid and air can be ejected from the nozzle part in a foamy state. |
