| 摘要 |
The dual outlet air valve is design feature that would greatly enhance the convenience of the standard valve stem design. In order to accomplish this the dual outlet air valve comprises a multi-port design whereby air can be released or injected through more then one port. The sealing and release of air for each port is controlled by a novel mechanism comprising a spring mounted plug. This spring is helical and surrounds a rod. One end of the rod is attached to a plug that is held in alignment with a hole defined by a wall formed to separate the upper portion of the port from the lower portion. The other end of the rod passes through a partition formed to define a hole at its center. The spring is larger in diameter then the center hole of the partition and is seated between the partition and the plug. The partition is threaded on its circumferance and is seated on threads defined by the inner surface of the port. Rotating the partition causes it to move up or down and alters the compression of the spring.
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