Suiter Swantz IP takes a look back at past inventions and inventors with our Patent Of The Day.
On this day in 1897, Nikola Tesla was granted U.S. Patent No. 577,671 for a MANUFACTURE OF ELECTRICAL CONDENSER, COILS AND OTHER DEVICES.
This invention is an improvement in the manufacture of electrical condensers, coils, and other devices. of a similar character in which conductors designed to form paths for currents of high potential are brought into close proximity with each other. Among such devices are included many forms of condensers, transformers, self-induction coils, rheostats, and the like.
It has heretofore been shown that the efficiency and practicability of such devices are very greatly enhanced by the exclusion of air or gas from the dielectric separating the conductors or remote portions of the same conductor; and the object of this present improvement is to secure such exclusion of air in as perfect a manner as possible in a convenient and practicable way. To this end place the condenser or other device to be treated in a receptacle from which the air maybe more or less perfectly exhausted, and while in Vacuum introduce an insulating substance, which liquefies when subjected to heat, such as paraffin, which surrounds the said device and finds its way into its interstices.
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