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.
1865: invention of petroleum jelly. The raw material for petroleum jelly (also known as petrolatum or soft paraffin) was discovered in 1859 in Titusville, Pennsylvania where it was stuck to some of the first oil rigs in the US.y 1870, Chesebrough was marketing his petroleum jelly product as Vaseline (claimed to be from the German word for water (wasser -- pronounced vahser), and the Greek word for oil (elaion), but this is unconfirmed). He patented the process in 1872.