Patent ID: 7128860

Claim:
A method for the manufacture of composite insulators, consisting of a shank in the form of a rod or tube coated with a cover, which has screens spaced apart from one another, the cover and screens being made from a material having high insulating properties, and wherein for the injection of the screens at least two injection molds for making screens, two screen molds, are placed vertically on the shank, wherein the screen molds are set spaced apart from one another such that screens for at least one composite insulators is injection molded onto one shank whose length has at least the length of the number of the composite insulators to be made, wherein during the manufacture of the composite insulators, after each procedure of the injection of screens, the screen molds are exchanged in regard to their number, configuration and size and adjusted in spacing from one another, wherein the advancing of the shank or the displacement of the screen molds after each procedure of the injection of screens are varied in order to produce different screen spacings, and wherein for the injection of following screens, the shank with the screens already injected is displaced with respect to the screen molds or the screen molds in relation to the shank depending on the screen spacing to such an extent that the screen molds are each addressed to the shank in the positions in each case where the following screens are to be injected onto the shank.