Insulating cap

Abstract

Abstract An improved insulating cap is provided for the spliced exposed ends of a pair of insulated electric wires. The cap may be readily fitted over the spliced ends, and it is firmly and permanently held in place to provide a complete insulating cover for the exposed ends. The cap of the invention is provided with two internal chambers separated by a membrane. An insulating adhesive material, such as an epoxy resin, is held in a liquid condition in one of the chambers; and a hardener activator for the epoxy resin is held in the other chamber. The membrane provides an air tight and moisture tight seal for the activator. When the cap is fitted over the exposed spliced ends of the wires, the ends pierce the membrane and cause the activator and resin to run together so that the resin may be activated and cured rapidly to a hard insulating condition. The membrane closing the reactor chamber is treated with a coating, such as paraffin, to render the membrane impervious to corrosive attack from the activator. The activator is selected to set up an exothermic reaction when mixed with the resin, so as to provide for the rapid and thorough intermixing of the two ingredients for a complete bonding of the resin. In addition, the reaction is such that the resin forms into a firm bond within a matter of seconds, so as to facilitate the use of the cap.

Inventors

• 👤 J Kelso

Bibliographic Details