| 摘要 |
A pressurized dispensing package of the type which includes an upstanding material dispensing stem having an actuator assembly mounted thereon which includes an annular resilient sealing member including a movable valving member, the valving member includes a frusto-conical actuating surface and a refill passage, a portion of which extends angularly of the direction of movement of the valving member to a port in the actuating surface. The sealing member is flexibly movable in response to movement of the valving member between a first position in which the dispensing passage is open and the sealing member seals the refill passage from the stem and a second position in which the refill passage is open and the sealing member seals the assembly dispensing passage from the stem.
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