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.
And, multiple people may have been involved in the invention of Tang. One of them is William Bruce James, a chemist who worked for General Foods. He also invented several Jell-O flavors. Another person who was involved with the invention of Tang is William A. Mitchell, who also invented Pop Rocks. William Mitchell has been involved with around 70 patents. These two seem to be the key people involved in the invention of Tang, according to the available information.