A year ago, i was presenting you Monsato Research Corp's project of a self-powered coffeepot (with Polonium-238). (here).
That was in 1969.
It looks like the Buffalo Machinery Co. was a forerunner for atomic-driven coffee machines.
The coffee pot, this time, could be heated with C-Uranium.
The article dates 1946.
Either way, it give me the creeps.