Importance

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Abstract

A multiple element, cylindrical metallized film capacitor and method of making the same are provided which facilitate the winding and making of electrical connections to a small value element of the multiple element capacitor. First and second dielectric films are metallized on one side thereof and are wound in cylindrical form with the non-metallized side of one film being in contact with the metallized side of the other. Selective portions of one or both of the metallized sides are removed in order to provide a multiple element device. In one embodiment, a metal strip having a metal tab extending therefrom is wound in an area where one of the metallized sides has been removed and an insulated strip is wound to surround the metal strip which forms one plate of a small capacitor. In another embodiment only a portion of the width of a metallized side of a film is removed providing more turns for the small capacitor to which an electrical connection can be made. In another embodiment, the winding is made on a metal core which forms a plate of the small capacitor. In still another embodiment the small capacitor is wound on an insulated core, the end of which is sprayed along with the turns of the small capacitor in order to facilitate making an electrical connection thereto. Advantageously, according to the present invention an extremely small size capacitor on the order of 0.05 microfarad in combination with a 3.95 microfarad capacitor may be readily and rapidly wound and connections made thereto in a manner which is more efficient, faster, and more economical than previous methods.

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First Claim