| 摘要 |
Disclosed is a portable, pulse-jet engine powered fog producing device in which the valve controlling the flow of the fluid forming the fog is of simplified construction utilizing a mating conical cavity and a conical, resilient valve member which is also provided with an integral shoulder forming a dynamic seal for the valve stem with respect to the valve body. A manual lever, having a unidirectional connection to the valve stem, has a locking and "dead man" feature.
|
