Tesla patent drawings

Nikola Tesla Patents

Tesla was granted nearly 200 patents worldwide

1 1 J T where the natural perios of a circuit is meant is a common usage in scientific works. Regarding the coil B, as described on page 8, beginning line 16, it seems clear that the coil should conduct as a helix, since its turns are insulated from each other. But, it behates as if it were a conductor of large radius of curvature, and in its electrostatic effect it is cylinder, or very nearly such . The insulated conductor" of claim 4 is the coil B in Fig. 5, as the Examiner states, and the same is shown as being insulated from the ground. The references quoted in the official letter, namely, Luscomb et al, No. 578,825, Kincaide No. 689,096, and the description of the so-called "Oudin resonator", do not contain the slighest hint or suggestion of applicant's invention. Whatever similarity there may be is apparent only. To understand applicant's invention it is best to resort to a mechanical analogue. The object of the invention is to provide an electrical circuit which will, at all points, prevent the escape of electricity; this result being attained by the artifices described and claimed. Unless every part of the circuit is so constructed or organized, the improvement fails. It is exactly as if a boiler or system of pipes, designed for very high pressure, with excessively thick walls, were provided but left defective or weak in one spot. It would be useless to have the walls strong if there were a single point of weakness through which a leak might occur. This is the case in the references cited by the Patent Office,, but 45 371-43 -2" 741