Patent ID: 6556779
Filing Date: 2003-04-29
Classification: H05B

Abstract:
Process to form shaped pieces (105), by pultrusion, for transforming electric current into diffused heat, with reinforcing fibers (60, 65) and a matrix of plastic material (50),characterized in that one or more nets (72, 73) are inserted, continuously, into the plastic material (50) said nets, consisting of a continuous wire (74) of electrically conductive material (77) coated with highly insulating material (78), being formed in the direction of feed of the shaped piece (105), thereby establishing electrical continuity from start to finish of formation of said shaped piece (105), wherein at certain intervals, devices (111, 112) for sockets incorporated in the shaped piece (105) are added to the nets for electric current and are placed longitudinally with an internal channel (115) passing through the devices (11, 112), said channel being aligned with the shaped piece (105) so that after said shaped piece (105) is cut through transversely at the position of the devices (111, 112), sockets (125-128), utilizable for connection to a source of electric current, are formed.