| 摘要 |
A spray nozzle has spray openings at one end and a flange at its other end, and a bag has folded or pleated portions of its thin plastic wall at the mouth of the bag or around a hole in said wall which has a thickness of the order of from 0.00125 to 0.005 of an inch. Said pleated portions are secured to said flange with a liquid-tight connection by a clamping ring which is outside the bag, grips said pleated portions between itself and said flange and by said snap ring or screw action is quickly attachable to and detachable from said flange which is inside the bag, so that the syringe can be compactly packaged, easily assembled for use and discarded after one use.
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