Since both parties appeal from the decree entered herein, we shall refer to the parties as they were referred to in the district court, to wit, plaintiff and defendant.
The patent in suit is intended to give practical effect to the idea that, by producing a strapping which could be applied by nails driven obliquely therethrough, the oblique driving of each successive nail would take up the slack between it and the last driven, and that such accumulative tightening would cause the strapping to hug tightly to the box, thereby avoiding the danger of the box breaking open. The inventor arranged to corrugate the median portion of the strap transversely, so as to form a central web portion having alternate ridges and furrows, the latter forming effective nail-receiving pockets, and the former constituting effective nail-holder shoulders or abutments; the idea being that a nail held obliquely could be safely driven without danger of glancing, the puncturing blows being utilized to take up the slack. The effect of corrugating the median portion is to increase the overall thickness of the web portion, so that, to the extent the overall thickness is increased, so also would the depth of the pockets and the height of the nail-liolding ridges or abutments be increased, without respect to the actual thickness of the metal employed. The corrugation of 1he metal maintains the initial thickness, and thus affords a sufficient resistance to puncture by the nail to enable the blows to perform the slack taking-up function before the strap is actually punctured, and it is claimed that by reason thereof comparatively thin sheet metal can be used for relatively wide strapping. By driving the nail obliquely, it enters the wood obliquely, and it is claimed that this, so driven, will continue further to take up the slack, insuring that the strapping will be caused to hug snugly lipón the box. The side border of the strapping is left uncorrugated transversely, and thus avoids the danger of the sudden taking up of the slack, which would be caused by the stretch of the strapping longitudinally, and thus defeat the whole purpose of the invention. The transversely corrugated central web,
The plaintiff in his claims sets forth:
4. A metallic box. strap for packing cases and tire like, comprising a strip, transverse corrugations formed along tlie median, portion thereof to produce substantially roughened surfaces on each face of the strip, and to increase the overall thickness thereof along said median portion, the shoulders formed thereby being arranged to hold the point of a nail to prevent slippage thereof, whereby said nail may be driven at an angle relatively to said strip, to take up slack therein in the act of applying the same; that part of the strip at opposite edges of said corrugated portion being relatively smooth to prevent stretching the central corrugated portion of said strip.
5. A metallic box strap for packing cases and the like, comprising a strip, transverse corrugations formed along the median portion thereof to produce substantially roughened surfaces on each face of the strip, and to increase the overall thickness thereof along said median portion, the shoulders formed by said corrugations being arranged to hold the point of a nail to prevent slippage thereof, whereby said nail may be driven at an angle relatively to said strip to take up slack therein in the act of supplying the same; that part of the. strip at the opposite edges of said corrugated portion being relatively smooth and provided with raised bearings.
7. A metallic box strap for packing cases and the like, comprising a strip, transverse corrugations formed along the median portion thereof to produce substantially roughened surfaces on each face of the strip, and to increase the overall thickness thereof along said median portion, the shoulders formed by said corrugations being arranged to hold the point of a nail to prevent slippage thereof, "whereby said nail may be driven at an angle relatively to said strip to take up slack therein in the act of applying the same; that part of the strip at the opposite .edges of said corrugated portion being relatively smooth and provided with raised bearings, said bearings being sufficiently raised to extend above the adjacent corrugated median portion of the strip sufficiently to guard the head of a nail driven through said median portion.
Howe’s application was filed and the reissue patent granted before the acts of infringement began. The defendant does not charge the plaintiff with laches, and an examination of the application and the specifications, together with the claims of the reissue patent indicates that the patentee has been more definite in the reissue patent than what was disclosed by him in the original patent. The drawings are the same, except that in Figure 2 the transverse corrugations are illustrated definitely, instead of conventionally, as in the original patent. The object of permitting a reissue to be granted was intended to make the patent more specific, providing no new matter was introduced. There was no> new matter introduced in the reissue patent; the original patent embodying a rather full disclosure of the basic idea of this invention, namely, the transversely corrugated median portion or web, plus the nonstretchable borders. Box strapping seems to have been old in the art, and when the plaintiff entered the field, in order to meet with success, it was obliged to show trade advantages over the prior forms. For instance, box strapping with raised bearings on one surface formed by embossment one way, was old; the bearings being provided for the sole purpose of holding the sharp edges of the strapping away from the floor. The idea of providing a means fo?" preventing the point of the nail from glancing out of a vertical position is
This record shows that, when the plaintiff first engaged in manufacturing this strapping, it was then and prior thereto engaged in manufacturing box strapping in a limited way, using only its byproduct from its rolling mills, or, as the witness Parsons described it, a by-product which it classified as waste. The annual sales of this patented product grew from 22,373,700 feet in 1913, to 100,281,800 feet in 1917. This speaks with great force for its novelty and utility. Barry v. Harpoon Mfg. Co., 209 Fed. 207, 126 C. C. A. 301. This phenomenal success, with the advantages given to merchants and manufacturers who require a metal strapping in their business, leaves no doubt in our mind that invention is clearly shown.
The chief structure of the prior art relied upon by the defendant, is the Bowler strapping, covered by the Bowler patent, No. 458,510. This patent expired in 1896. It provided a central web portion, with closely spaced minute score lines cut into the sheet metal stock, usually in one surface only; the object being to hold the nail from slipping either way. The result of scoring was to weaken the thin sheet metal stock, so that the nail would penetrate more easily than it otherwise would. The corrugating process of the patent in suit is opposed to the scoring or cutting process. Corrugation preserves the initial resistance to puncture the sheet metal, and the blows used in puncturing the metal take up the slack in the strap. The alternate ridges and pockets, with the height and depth respectively obtained, make secure the anchoring of the point of the nail, so that it would not glance when driven obliquely. The exhibits indicate that the ridges and depth of the pockets make the height several times as great as the actual thickness of the material.
In the Bowler patent, while it shows the strapping transversely scored along its middle portion, it contributes no useful function thereto.
The infringement of the patent in suit is plain, and needs no further comment. The abandonment of the manufacture of the Bowler “duplex” strapping and the substitution of this type (Plaintiff’s Exhibit 10) makes clear, we think, the claim of infringement.
The decree is in all respects affirmed.