Abstract: A lightweight, durable convenient, practical, versatile and efficient insect monitoring system and trap for capturing crawling and flying adult insect or larvae. The trap is a two-piece snap-on plastic unit which contains an adhesive to trap the insects and the food or pheromone to lure the insects to the trap. The trap is useful for protection of stored animal and plant products.

Abstract: A solenoid valve for controlling the flow of hot melt material such as hot melt adhesive. The valve includes an aluminum body in which is disposed a heater cartridge for supplying heat energy to the body. The body is bored to receive an insert constructed of brass of like material having good heat conductivity and the insert defines a cylindric passage. Extending through the cylindric passage is a valve stem that has an outer diameter less than the inner diameter of the cylindrical passage so that an annular flow path is formed. Hot melt material supplied to one end of the annular flow path flows to a valve seat at the other end of the flow path. The diameters of the cylindric passage and the valve stem are established so that the annular path has a sufficiently small radial dimension (e.g. 0.004 inch) that the hot melt material in the path is rapidly and efficiently heated so that when discharged through the valve seat it will be at a suitable operating temperature.