In re Davis

' There is involved in this appeal an application for patent for a design, shown by drawings, for a carbon pile regulator or similar article. The regulator is, as we understand it, a device in the nature of a rheostat, used in the regulation of voltage and current in dynamo electric generators and in electric circuits.

The appeal is from the decision of the Board of Appeals of the United States Patent Office, one member dissenting, affirming the decision of the Primary Examiner rejecting the application for lack of patentability over prior art cited. More specifically it was held, as expressed…