Edward Loysel

Edward Loysel (Vannes, 1816 – 1865), born Édouard Loysel de La Lantais, was a French-British engineer who patented an early espresso machine, and is known for having coined and popularised the terms "percolator" and "percolation."

Initially professor of mechanics and natural sciences in Marseille, France, he began to move into business in following years. to patent in 1845 his "Hydrostatic percolator" described as "devices, intended to obtain, by infusion, liquid extracts and various substances".

Mainly used for coffee, the machine was exhibited at the 1855 Paris Exposition. As Loysel had moved to the UK in 1844 (and obtained British nationality in 1848), his machine was presented as part of the "English catalogue" of the world fair.