Application of Klaus Schulze

WORLEY, Chief Judge.

This is an appeal from the decision of the Board of Appeals which affirmed the examiner’s rejection of claims 8-11 in appellant’s application 1 for a “Method of Preparing Bituminous Mixes.”

The application relates to a method for coating fine aggregates, such as finely-divided coal particles, with a thin bituminous film. The coated aggregates are used in the production of briquettes. Appellant states that it had been known in the prior art to add steam to bituminous binding compositions used to coat fine coal particles. The steam condensed on the particle surface and…