Claud L Jacocks, Robbie J LaFleur, Ralph L Grimsley: Method and apparatus for oil-water separation. Conoco, A Joe Reinert, January 10, 1984: US04425239 (35 worldwide citation)

A system for separating a multi-component fluid such as a water-in-oil emulsion into at least two components. The system comprises a cylindrical vessel which is equipped with a baffle system interposed between fluid inlet and outlet means. The baffle system defines a horizontally extending spiral fl ...