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.
Fascinating facts about George Washington Carver inventor of peanut agricultural science. George was born of slave parents on July 12, 1864 in Diamond Grove, Missouri a sickly child at birth he would remain frail for most of his childhood.ascinating facts about George Washington Carver inventor of peanut agricultural science. George was born of slave parents on July 12, 1864 in Diamond Grove, Missouri a sickly child at birth he would remain frail for most of his childhood.