Invention Grant
US07222758B1 Valve stem stability in pressurized dispensing containers 失效
加压分配容器中阀杆的稳定性

Valve stem stability in pressurized dispensing containers
Abstract:
A standard stem and nozzle arrangement for a pressurized dispensing container which dispenses product such as caulk, has an engagement that holds the stem to the sealing boot so that when the nozzle is rotated, the stem will stay in place. Thus, any binding between nozzle and stem due to cured or dried dispensed product can be overcome by twisting the nozzle hard enough to break such a seal without causing the stem to rotate. The engagement is shown as a set of wedge-like projections that extend up from the button of the stem into the resilient sealing boot.
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