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.
Skippy is a brand of peanut butter manufactured in the USA. First sold in 1932, Skippy is currently manufactured by Hormel Foods, which bought the brand from Unilever in 2013. It is the best-selling brand of peanut butter in China and second only to the J.M. Smucker Company's Jif brand worldwide.