Philip Sletten patents Water Clarifying Unit, 1959

James Dalager’s father-in-law, Phyllis’ father Philip O. Sletten of Winthrop, Minnesota was an engineer at the milk processing plant in Winthrop from the 1940s through the 1970s when he retired.  Of the many remarkable things he did, perhaps the least known is his 1959 U.S. Patent of a Milk Clarifying Unit.  Essentially, Philip found a way to make the process of drying milk more efficient by recycling the water vapor from the dehydrating milk, purifying it, and reusing that water in the boiler.

Click and see United States Patent US2910182.  Pretty cool stuff, especially if you’re an engineer.