Current compressed air dryer types include the following products: 1  Refrigerant type: Cycling. 2  Regenerative desiccant type: Heatless (no internal or external heaters) Heated (internal or external heaters) Heat of Compression. 3  Single Tower Deliquescent. 4  Membrane.
History. Canadian Marcellus Gilmore Edson (February 7, 1849 â March 6, 1940) of Montreal, Quebec was the first to patent peanut butter, in 1884. Peanut flour already existed. His cooled product had a consistency like that of butter, lard, or ointment according to his patent application.
Who Invented Peanut Butter? Contrary to popular belief, George Washington Carver did not invent peanut butter. He was one of the greatest inventors in American history, discovering over 300 hundred uses for peanuts including chili sauce, shampoo, shaving cream and glue. He was a pioneer in the agricultural world and many refer to him as father of the peanut industry.