PRINCIPLE

In patent law, the princi• ple of a machine. is the particular means of producing a given result by a mechanical contrivance. Parker v. Stiles, 5 McLean, 44, 63, Fed. Oas. No. 10,749. The principie of a machine means the modus operand i, or that which applies, modifies, or combines mechanical powers to produce a certain result; and, so far, a principle, if new in its application to a useful purpose, may be patentable. See Barrett v. Hall, 1 Mason, 470, Fed. Cas. No. 1,047. f' [s. 946]