In the District court of the United States: for the district of Delaware, no. 331. In equity. Minerals separation, limited, plaintiff, v. Miami copper company, defendant. Suit on U.S. patents nos 835120, 692678 and 1099699. Before Hon. Edward G. Bradford, U.S. district judge. Opinion of the court, filed September 29, 1916
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action of oil affinity for metalliferous agitating the mixture air-bubbles amount of oil apparatus applied carried Cattermole process cent centration claim 9 concentration consists in mixing constituents containing in solution copper court cresol December 19 discovery efficient Everson process evidence fatty acids form a froth fraction froth and separating froth or scum gangue by means gangue particles granules Higgins House of Lords infringement invention relates June 28 matter over gangue ment metallic particles metallic substances metalliferous matter metalliferous particles Miami mineral acid mineral frothing agent mineral particles mineral-frothing agent minute proportion minute quantity molybdenite oil amounting oily substance oleic acid operation particles of gangue patent in suit plaintiff preferential affinity prior art process patent proportion of oil pulp pulverized quantity of oil result rhodonite second patent selective action separating the froth small quantity specific gravity Sulman and Picard sulphides surface surface tension ticles tion violent agitation water containing