| 摘要 |
<P>PROBLEM TO BE SOLVED: To eliminate the occurrence of after-spray in a button for intermittent spray which is attached to an aerosol vessel. <P>SOLUTION: The button 10A for intermittent spray which is attached to a stem 5 of the aerosol vessel 2 has a housing 11, a cylinder 13 provided in the housing 11 and communicating with stem 5, a pressure chamber 24 formed in the cylinder 13, valve elements 16, 17 repeating to open and close the pressure chamber 24 in accordance with the internal pressure of the pressure chamber 24 and a spray port 20 communicating with the pressure chamber 24 through the valve elements 16 and 17. The button 10A for intermittent spray is further provided with a pressure controller 30 expanding and contracting in accordance with the internal pressure of the pressure chamber 24 in a communication passage 14 between the pressure chamber 24 and the stem 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
