Today in 1909, US Patent 911405 A was issued, an invention of John D. Hendrix, for his “Beer Cooler.” There’s no Abstract, although in the description it includes this summary:

This invention relates to beer coolers, the object of the invention being to provide a simple and effective beer cooling device which may be sold at a reasonable figure, easily installed, and one which is adapted to be taken apart in order that the several parts thereof may be easily and thoroughly cleansed.