| 摘要 |
A refillable hand-operated liquid sprayer of the type which requires no container pressurizing gas nor other foreign propellant. It operates to pump a small quantity of liquid to be sprayed from a container to a small cylindrical chamber wherein the liquid is pressurized by the force of a coiled spring which is stressed during "cocking" stroke preparatory to spraying the liquid from the device. A cover unit is removably mounted on the open end of the container, and a spray head is rotatably mounted on the cover unit, the rotation of the head relative to the unit causing the spring to be compressed and simultaneously sucking liquid up from the container into the chamber. A valve mechanism is provided for cutting off the spray by letting the pressure out of the cylindrical chamber or by blocking the communication between the chamber and a discharge valve immediately before the pressurized quantity of liquid is exhausted. With this arrangement, a high quality, very fine mist is maintained during spraying as well as a sharp cut-off of the spray is effected.
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