Dunkley v. Beekhuis

39 App. D.C. 494, 1913 U.S. App. LEXIS 2022
CourtCourt of Appeals for the D.C. Circuit
DecidedJanuary 6, 1913
DocketNo. 790
StatusPublished

This text of 39 App. D.C. 494 (Dunkley v. Beekhuis) is published on Counsel Stack Legal Research, covering Court of Appeals for the D.C. Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Dunkley v. Beekhuis, 39 App. D.C. 494, 1913 U.S. App. LEXIS 2022 (D.C. Cir. 1913).

Opinion

Mr. Chief Justice Shepard

delivered the opinion of the-Court:

Appeal from a decision of the Commissioner of Patents in an interference proceeding.

The invention involved is a device for peeling fruit, in which, jets or sprays of water are employed as a means for performing the peeling operation.

The counts of the issue are four in number:

“1. In an apparatus for treating fruit such as peaches, means-for removing previously disintegrated skin from the fruit, including a support for the fruit, means for effecting a change of position of the fruit on said support, and means for directing-peeling water jets upon said fruit.

“2. In an apparatus for removing the previously disintegrated skin from fruit, the combination with means for supporting and advancing the fruit, of means for directing a peeling; water jet upon said fruit as it advances.

“3. In an apparatus for removing the previously disintegrated skin from fruit, the combination with means for supporting and advancing the fruit, of means for directing peeling jets of water at intervals upon said fruit as it advances.

“é. In an apparatus for removing the previously disintegrated skin from fruit, the combination with means for supporting and advancing the fruit, of means for directing peeling jets of water at intervals upon said fruit from above and below as-it advances.”

All the tribunals of the office found that Samuel J. Dunkley was the first to conceive and reduce to practice, provided he was entitled to make the claims of the issue, and this decision was undoubtedly right.

This presents the single issue of the case, and there is direct, conflict in the decisions of the several tribunals passing upon it in succession. A motion to dissolve by Hermanus A. Beekhuis, on the ground that Dunkley was not entitled to make the claims, was referred, in the first instance, to the primary examiner and by him denied. The question was reserved and [496]*496presented on. the hearing. The Examiner of Interferences •differed with the primary examiner, and awarded priority to Beekhuis. On appeal to the Examiners in Chief this •decision was reversed, one member dissenting. On appeal to the Commissioner that decision was reversed, and priority .awarded to Beekhuis.

The decision turned on the effect of the words “peeling jets •of water,” which are found in each claim. These words were first used in the claims of Beekhuis, to whom patent issued pending the application of Dunkley, and his claims were copied by the latter for the purpose of procuring the declaration of interference.

The common use of the peeling machine is the removal of the .■skin from peaches. Before introduction into either machine the fruit passes through a receptacle, where it is subjected to a bath in a hot solution of lye, which disintegrates the skin .and makes it readily removable. In Dunkley’s device, the fruit from the bath is delivered on to an endless belt conveyor, and passes between rotary brushes for about 6 feet. The brushes .are in sections of fiber and sponge. These revolve, apparently, •at different rates, and rotate the peach as it is carried along by the conveyor brush. Three perforated pipes are arranged .along the passage,—one at each side and one above,—so that the jets or sprays of the nozzle perforations are directed against the line of passing fruit, striking the fruit tangentially and tending to impart a rotary movement to each as it advances in •single file to the point of exit.

' The Beekhuis machine has a large box screen of wire mesh arranged so as to shake the peaches as they pass over it; the peaches having been submitted to the skin disintegrating bath and cut in halves. Above this shaking screen is arranged a water pipe at a distance of 12 or 15 inches with transverse slits .at intervals, which deliver a broad fan-shaped spray or jet of water on to the fruit passing over the screen. Another pipe .arranged below the screen delivers a similar spray or jet upon the under side. The fruit is delivered by hand through a feed spout and falls in a mass upon the screen. There it is sub[497]*497jected to the water jets as it passes. The jets assist, and doubtless, chiefly remove the disintegrated skins. They also cool the fruit after its subjection to the hot lye solution, wash it, and prepare it for canning. The effect of the shaking in the box .screen is described as follows:

“This agitation, shaking, or dancing to which the fruit is subjected has the triple effect of, first, advancing the fruit to its discharge from the lower end of the box; second, of occasioning sufficient friction, both between the individual specimens themselves and between them and the screen bottom and ■sides of the box to assist in removing the skin; and third, of presenting every portion of the fruit, at some time throughout the course of its travel, to the action of the water jets or sprays from the pipes 15 and 19. As the fruit travels through the box under the constant agitation or shaking described, the water jets or sprays from below and above serve to fully remove the particles of skin.”

The Commissioner was not satisfied with the evidence of 'Dunkley relating to the operation of his machine—which peeled peaches rapidly and satisfactorily—that the jets of water had anything more than a washing operation, and was of the opinion that this was all that Dunkley contemplated. It would be practically impossible for any witness to testify to the actual fact that the skins were chiefly removed by the water jets in Dunkley’s machine for the reason of the rapid passage of the fruit and its concealment. Without pausing to discuss the criticism by each party of the jet or spray of the other, we tMrik it apparent that the jet of Dunkley would have the effect to remove the skins, as well as to cool and wash the fruit for the canning process. The skin of the peach having been disintegrated by the action of the hot solution of lye, that is to say, cut or broken and loosened from the pulp, was, to say the least, as easily removed by one jet as the other. But let it be conceded that Dunkley was not fully aware of the effective action of the jets of water, and relied chiefly upon the action of the brushes to remove the skins; and, on the other hand, that Beekhuis relied chiefly on the water jet, yet the latter, as we have seen, [498]*498relied upon the friction of the peaches with each other and the1 screen to assist in removing the skins, while the water jets had the additional function of cooling and washing the fruit. It is-to be observed that none of the counts define the water jets as, constituting the sole peeling means. The counts of the issue are satisfied by a construction in which peeling water jets enter in- ' to the operation of removing the skins, whether they be exclusively employed to remove the skins or not. And in neither machine as described and constructed are the water jets shown to be the exclusive means of peeling. Since stress is laid upon the words “peeling jets,” it must be noted that no such words, occur either in the specifications or the original claims of Beekhuis, whose application was filed May 25, 1904. They first occur in amended claims filed October 21, 1904, and were" thereafter embodied in all of the allowed claims. As shown by the described and exhibited structures, both parties first subject the fruit to- the hot lye solution to effect the disintegration of the skins. Beekhuis agitates the fruit in his box screen so as to partially peel it.

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39 App. D.C. 494, 1913 U.S. App. LEXIS 2022, Counsel Stack Legal Research, https://law.counselstack.com/opinion/dunkley-v-beekhuis-cadc-1913.