Atlantic Refining Co. v. James B. Berry Sons Co.

BUFFINGTON, Circuit Judge.

This case concerns the recovery, by a single distillation of crude petroleum, of its by-products. The recovery of such by-products by successive distillations was well known, but this patent concerns the obtaining of such by-products by a single, as compared with recovery by additional, successive, distillation.

In a general way we may say that distillation is effected by the fact that crude petroleum vaporizes at different degrees of heat and in and from such different vapors various by-products are secured. The different temperatures at which vaporization takes…