195 F. 936 | 2d Cir. | 1912
(after stating the facts as above).
Complainant put the patent in evidence and also introduced a stipulation accompanied with a blueprint and some correspondence all showing quite clearly what the defendant’s apparatus is. It called no expert and rested its case.
We do not agree with defendant's counsel. We find nothing difficult, intricate, or puzzling about the specifications, the drawings, or the single claim, on which complainant relies. Possibly an expert, if allowed to talk long enough, might have '.nade them seem puzzling by the use of a multitude of words, and the reading into the description of propositions emanating from the expert’s own brain, unsuggested by anything in the specifications. Just what the structure is, how it works, and what results from its operation, is set forth in plain language in the patent; there is nothing improbable in the results which the inventor asserts, an asertion to which the Patent Office gave credit.
Moreover, the structure of the defendant is so nearly identical that the action of similar materials rotated in the tumbling barrels of both machines must, in the absence of proof to the contrary, be taken to be the same. Indeed, the spacing of the different sized pebbles in defendant’s blueprint of its apparatus indicates that the action is tlie same. Defendant uses the tumbling barrel of the patent, but has two conical barrels and two outlets and a different method of feeding. Mere duplication will not avoid infringement, and it seems quite clear to us that defendant has appropriated the substantial features of the claim. And if there is not identity of elements operating to produce the same results, there is certainly such equivalency as to constitute infringement of a patent not confined to specific forms. Complainant
Decree affirmed, with costs.