Kalamazoo Loose-Leaf Binder Co. v. Proudfit Loose-Leaf Co.

243 F. 895, 156 C.C.A. 407, 1917 U.S. App. LEXIS 2174
CourtCourt of Appeals for the Sixth Circuit
DecidedJune 30, 1917
DocketNo. 3026
StatusPublished
Cited by5 cases

This text of 243 F. 895 (Kalamazoo Loose-Leaf Binder Co. v. Proudfit Loose-Leaf Co.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Sixth Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Kalamazoo Loose-Leaf Binder Co. v. Proudfit Loose-Leaf Co., 243 F. 895, 156 C.C.A. 407, 1917 U.S. App. LEXIS 2174 (6th Cir. 1917).

Opinion

KNAPPEN, Circuit Judge.

This appeal grows out of this situation :

In a suit for infringement of three patents to Bushong on loose-leaf binders, the District Court found claims 13, 15, and 16 of patent No. 941,757 valid and infringed, and entered the usual interlocutory decree for injunction and accounting. The decree of the District Court as respects this patent was affirmed by this court. Proudfit Loose-Leaf Co. v. Kalamazoo Loose-Leaf Binder Co., 230 Fed. 120, 144 C. C. A. 418. Neither of the other two patents is involved here, and the provisions of the decree respecting them are immaterial.

In the progress of the accounting had under the mandate of this court, defendants presented to tire District Court a modified structure which they desired to manufacture and to substitute for the infringing devices, asking the court to determine whether such modified structure infringed the claims in question. The plaintiff objected to the form of the proceeding and to the jurisdiction of the court in that regard. The court overruled the objections, and after hearing the parties held that the modified binder presented did -not infringe any of the patent claims in question, and that the injunction and decree would not be violated by its manufacture and sale and the reconstruction or remodeling of present infringing binders so as to make them conform thereto. This appeal is from that order.

[1] Assuming for the present that the district judge had jurisdiction to pass upon the question whether the modified binder infringes, and that such jurisdiction was invoked by proper procedure, we have no difficulty in agreeing with thq conclusion of the district judge upon the question of infringement. Claim 13 of the patent involved reads thus:

“13. In a loose-leaf binder, the combination of a pair of swinging covers, one of wbicb is provided with an internal recess or chamber, binding strips to which the loose leaves are secured extending between the covers, and adjusting mechanism for tlje strips situated within said recess or chamber in the cover, and arranged to he operated from outside of the chamber without opening or uncovering the same.”

Claim 15 differs from claim 13 only in substituting “adjusting screw” for “adjusting mechanism” and in substituting for the last clause (which we have italicized) the words “and adapted to be manipulated from without the same by means of a key.” Claim 16 differs [897]*897appreciably from claim 13 only in substituting for the last clause of the claim the words “adapted to be operated by means of a key without opening or uncovering the chamber.”

In sustaining the validity of these claims, the district judge held that:

“Tlie vital and novel feature of the invention embodied in each of the three claims in suit is the means for operating and the operation of the adjusting mechanism, contained within the chamber of the cover, from without the cover, and without opening or uncovering the chamber.”

This construction was, if not expressly, certainly by necessary implication, adopted by this court; and, as so narrowly limited, we upheld the validity of the claims as against the defense of lack of invention in view of the prior art. As this proposition does not seem, to be questioned, we content ourselves with its mere statement.

In plaintiff’s device, as disclosed by the patent, the adjusting mechanism was located in a recess of one of the covers of the book, a cross-head therein, to which one end of each of the binding strips was attached, being directly actuated longitudinally to the cover by the revolution of a screw-shaft,, by use of a key inserted in the front edge of the cover. Defendants’ adjusting mechanism there involved differed from plaintiff’s only in these respects: It employed in place of the screw-shaft a bell-crank and worm; a key inserted in the lower edge of the cover engaged the head of the worm, the thread of which engaged the geared segment on the short arm of the bell-crank, the revolution of the worm (which lay transversely of the cover) moving the short arm of the bell-crank, and thus the crosshead to which the longer arm of the crank was attached. We held defendants’ worm and bell-crank mechanism the equivalent of plaintiff’s screw mechanism.

In defendants’ modified structure approved by the District Court, the adjusting mechanism proper is the same as in llie structure which both the District Court and this court held to infringe; that is to say, the same crosshead, worm, and bell-crank are employed. The means for operating that adjusting mechanism differs, however, in this respect: The keyhole in the cover is permanently stopped up and the worm is operated in both directions by a reversible ratchet lever within the recess in the cover; this lever when not in use lying flat in the chamber, the outer end of the lever being raised when in use. This operating mechanism is thus not without the cover, but is within it; and we entirely agree with the district judge that the adjusting mechanism cannot be operated “from without the cover and without opening or uncovering the recess or chamber in the cover”; and that the new and modified structure lacks “the vital and novel feature or element of the claims of plaintiff’s patent.” We see no merit in plaintiff’s contention that the flexibility of the cover-flap permits the swinging of the ratchet lever, and thus the operation of the ratchet mechanism, without uncovering the recess containing it either when the sheets are lying on the front cover or when they are resting on the cover containing the mechanism. As well said by Judge Sessions:

[898]*898“Even though the binder be twisted or distorted out of its normal position and condition, the chamber in the cover must be open and uncovered to some extent before the adjusting mechanism can be operated.”

Indeed, the lever cannot be reached without actually. entering the chamber, manually or otherwise. Moreover, practical operation of the mechanism “from without the cover” is impossible in any feasible or proper sense. As affecting the question of operation from without the cover, it may be noted that in the modified structure the adjusting mechanism can by no possibility be operated with the book closed, a feature to the existence of which in plaintiff’s mechanism and in defendants’ former structure we called attention on our former review. It should go without saying that the mere substitution for a removable key of a nonremovable and foldable key, located, for example, in the outer margin of the cover, and operable without opening the book or without access to the chamber, would not avoid infringement. But the instant case does not present the question of substituting one kind of a key for another, but of an operation from within, as vitally .distinguished from an operation from without, the covers. Our decision on the previous review, that infringement was not avoided by the removal of the cover-flap, is not in any way inconsistent with the conclusions we have here announced. The former decision in that regard rather emphasizes the correctness of the decision here reached.

[2] Turning to the question of the authority of the District Court to determine whether the structure in question infringes: In denial! of this authority plaintiff presents numerous considerations, the most prominent of which will sufficiently appear from our discussion.

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Bluebook (online)
243 F. 895, 156 C.C.A. 407, 1917 U.S. App. LEXIS 2174, Counsel Stack Legal Research, https://law.counselstack.com/opinion/kalamazoo-loose-leaf-binder-co-v-proudfit-loose-leaf-co-ca6-1917.