Collins v. Lotz

ROBB,-Associate Justice.

Appeal from a decision of the Patent Office in an interference proceeding awarding priority as to counts 1 to 5, inclusive, to the party Collins, and on count 6 to the parties Muhlfeld and Cayaeristi.

The invention covers a process and device for burning pulverized coal in a furnace. Theretofore considerable difficulty had been experienced through the formation of a molten mass of slag at the bottom of the pit, which was difficult to remove. Under this process, air is admitted beneath the zone of combustion, and the falling ash is cooled below slag-forming temperatures.…