Arthur Ralph Hinkel (January 9, 1916 – January 17, 1993) was an American electrical engineer best known for developing the Blend Method of electrology.
They began work on developing an epilator that combined electrolysis and thermolysis.
In 1948, the St. Pierre Epilator Company Inc., owned by St. Pierre and Hinkel, received a patent for a blended current epilator.
Hinkel also owned a chain of electrology businesses.
He sold the manufacturing portion of the business in 1984, which still operates under the name A.R.