Abstract: A joining device for electrofusion of at least one end of a pipe to a fitting is provided which includes a fitting of a polymeric material and a collar adapted to receive the end of the pipe. The collar is fabricated from a conductive polymer composite material and positioned within the fitting. A connector for connecting the collar to a source of current may be provided which may be integral to the fitting. Likewise, the collar may be integral to the fitting. All three of the connector, collar and fitting are preferably an integral unit. A method of making the joining device and a method of using the joining device are also provided.

Abstract: A handheld power control device adapted to be connected to an external power supply for controlling the electric power applied to a heating coil positioned in a fusible area of a thermoplastic pipe joint for thermally fusing the joint. A housing having a cover with a front panel displays various parameters and operating options of the device, and has a plurality of manually operable membrane switches for selecting displayed options and activating the device, and indicating devices for displaying operating states of the device.