Aerovox Corp. v. Concourse Electric Co.

L. HAND, Circuit Judge.

This is the usual hill in equity for the infringement of two patents, each concerned with a dry electrolytic condenser for use in radio receiving sets. The first is for a new form of cell; the second for the electrolyte to be used in it.. A few words of general explanation are necessary at the start. An electric condenser is a device by which excesses of current are stored and released, acting as a sort of elastic cushion for its variations. It is made up of two electrodes, anode and cathode, separated by a non-conductor, the dielectric. The capacity of the condenser…