H. Ward Leonard, Inc. v. Maxwell Motor Sales Corp.

(after stating the facts as above). The problem before inventors was to prevent the charging of storage batteries by too high a current, resulting in the destruction of those accumulations in the cells upon whose creation the stored energy depends. If the current be too large, which in this instance also means a current of too high voltage, these products, normally aggregated for future use, are turned into gas to the loss and injury of the battery itself. As the battery becomes charged, its voltage rises, and with it the voltage in the charging current, with which varies the amperage.Hence…