| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a functional and economical product enabling injection of powder aerosol content always containing a constant amount of powder for every injection operation and preventing it from remaining when the powder aerosols content is injected in constant amount. <P>SOLUTION: A housing 8 communicating with an aerosol container 1 through a communication port 23 is provided with a storage 27 for powder 26, at the inner lower end thereof. A stem 10 inserted into the housing 8 communicates with the outside thereof through an orifice 18 only when pressed, and the stem 10 seals the communication port 23 with its opening/closing part 24 at its lower end to block the communication between the aerosol container 1 and the housing 8. A constant dwelling interval 16 is formed between the stem 10 and an annular wall 15 formed by complete compression of a coil spring 13 when the stem 10 is pressed, and the dwelling interval 16 is provide with a flowing port 28 communicating with the storage 27 for the powder, at its lower end. <P>COPYRIGHT: (C)2004,JPO |
