ES269771U - Protective device for uses applicators of thermoplastic and analog products. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Protective device for applicator tools of thermoplastic products, and the like, characterized in that it comprises a metal bushing in which at one end, carrying the corresponding circuit connection conductor, a tablet of material which at a normal temperature remains in the solid state is received, said bushing at the other end housing an electrical insulator through which the other connection conductor is through, the end of which is sealed with a suitable material, said conductor having a terminal protruding from said insulator inside the bushing and to which it is, facing a sliding contact disk in the bushing, a trigger spring having been provided between said disk and the insulator and there being between the disk and the above mentioned thermal chip a compression spring of greater power, which applies the contact disk against said terminal, all in such a way that, if a rise in temperature occurs and beyond a certain limit the thermal pellet melts and the compression spring recovers, allowing the expansion of the firing spring that drives the contact disc, separating it from said terminal with which the circuit is interrupted. (Machine-translation by Google Translate, not legally binding)