| 摘要 |
A manually operated sprayer for dispensing liquids from a container includes an improved, self-sealing outlet check valve having a resilient diaphragm convexed toward and in seating engagement with the dispensing orifice. The diaphragm is designed to flex out of engagement with the dispensing orifice when the pressure of the liquid in the pump chamber exceeds the engaging force of the diaphragm, thereby permitting the liquid in the pump chamber to flow out of the dispensing orifice in an atomized form.
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