| 摘要 |
Provided is a device for pressurized contents comprising a container having a hollow interior for location of the contents therein, a valve body having a channel in fluid communication with the interior of the container. a stem having a tapered end extending into the valve body, wherein the stem is moveable within the valve body, a single port for conveyance of the contents between the container exterior an d the container interior, wherein the device has no additional port for conveyance of the contents between the container exterior and the container interior, and a se al arrangement between the valve body and the tapered end to prevent conveyance of the contents through the single port when the tapered end is in a seated position, wherein a rate of conveyance of the contents through the single port is controllable by movement of the stem within the valve body.
|
