Eugene A. Wahl and Vibra Screw Feeders, Inc., and Cross-Appellees v. Carrier Manufacturing Co., Inc., and Cross-Appellant

511 F.2d 209, 19 Fed. R. Serv. 2d 1209
CourtCourt of Appeals for the Seventh Circuit
DecidedFebruary 25, 1975
Docket73-1998, 73-1999
StatusPublished
Cited by131 cases

This text of 511 F.2d 209 (Eugene A. Wahl and Vibra Screw Feeders, Inc., and Cross-Appellees v. Carrier Manufacturing Co., Inc., and Cross-Appellant) is published on Counsel Stack Legal Research, covering Court of Appeals for the Seventh Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Eugene A. Wahl and Vibra Screw Feeders, Inc., and Cross-Appellees v. Carrier Manufacturing Co., Inc., and Cross-Appellant, 511 F.2d 209, 19 Fed. R. Serv. 2d 1209 (7th Cir. 1975).

Opinion

TONE, Circuit Judge.

This is the second appeal in this patent-infringement case. In the earlier appeal, this court affirmed the District *212 Court’s judgment holding claims 14, 15 and 17 of U.S. Patent No. 2,800,252 valid and infringed and enjoining further infringement. Wahl v. Carrier Mfg. Co., 358 F.2d 1 (7th Cir. 1966). The present appeal presents issues relating to damages for infringement, attorney fees, interest, and, by reason of a cross-appeal, infringement by certain modified devices manufactured and sold by defendant and the allowance of costs.

Plaintiffs are Eugene A. Wahl, the inventor and owner, and Vibra Screw Feeders, Inc., the exclusive licensee in the United States. The patent, which is described in our earlier opinion (358 F.2d at 2), relates to an auger-type feeder for use in introducing the desired amount of dry materials into a product being compounded. Defendant, Carrier Manufacturing Company, Inc., is a manufacturer of machines that embody auger-type feeders held to infringe the patent.

Some time after the original complaint was filed, defendant modified its accused device and manufactured and sold modified versions of several different types. Only the original version was involved in the first trial, and therefore the judgment of infringement affirmed by this court covered only that version. While the appeal from that judgment was pending, defendant filed in the District Court a petition for clarification of the judgment, or, in the alternative, for a declaration that the modified versions did not infringe the patent. After this court’s affirmance of the original judgment, the District Court held a second trial on the issues raised by the petition and on October 16, 1968, entered a supplemental judgment determining that all of defendant’s modified versions infringed claim 14.

Following the entry of the supplemental judgment, from which defendant did not appeal within 30 days, the District Court referred the case to a master for an accounting to determine plaintiffs’ damages and costs. After trial before him, the master, in a report consisting of findings of fact and conclusions of law, to which both sides objected, recommended allowance of damages of $37,-743.03 and costs of $20,240.00. The District Court adopted the master’s findings and conclusions, allowed interest on the damages commencing with the date the master’s report was filed, denied treble damages and attorney fees, and entered judgment accordingly.

Plaintiffs appeal, urging that the damages allowed are inadequate, that attorney fees should have been awarded, and that interest should have been allowed from the end of each year in which damages were incurred. Defendant cross-appeals, urging that the modified devices do not infringe and that certain costs should not have been allowed. We affirm the judgment of the District Court in all respects except costs.

Appealability of the Supplemental Judgment of Infringement

Plaintiffs’ motion to dismiss the cross-appeal as untimely, denied by Judge Stevens as motion judge, is renewed. We adhere to Judge Stevens’s ruling. The time to appeal from the supplemental judgment began to run with the entry of final judgment in this case. Victor Talking Machine Co. v. George, 105 F.2d 697, 699 (3d Cir. 1939), cert. denied, 308 U.S. 611, 60 S.Ct. 176, 84 L.Ed. 511 (1939); Bingham Pump Co. v. Edwards, 118 F.2d 338, 339 (9th Cir. 1941), cert. denied, 314 U.S. 656, 62 S.Ct. 107, 86 L.Ed. 525 (1941).

Merits of Supplemental Judgment

Claim 14, held infringed by defendant’s revised structures, requires that the auger be deliberately and controllably vibrated during rotation. This was held to occur in defendant’s original accused device because, although the trough and tube were vibrated independently of the auger, and the auger was secured to the base, the rubber mounts on which the base rested permitted the base and thus the auger to vibrate. (358 F.2d at 5.) Defendant argues that its redesigned feeders do not infringe because they are bolted down, rather than being mounted on rubber feet, and therefore vibration *213 of the auger is not permitted, and claim 14 is not infringed.

The District Court found, however, that in each of the revised structures the auger was deliberately and controllably vibrated, because the vibrator mounted on the feeder vibrated the entire structure even though it was bolted down. Thus the court found that the modified structures perform substantially the same function in substantially the same way, and the doctrine of equivalents applies. The finding of equivalence is a determination of fact (Hazel-tine Research v. Admiral Corp., 183 F.2d 953, 955 (7th Cir. 1950), cert. denied, 340 U.S. 896, 71 S.Ct. 239, 95 L.Ed. 650 (1950)) and is supported by sufficient evidence, which we need not detail. That finding is not clearly erroneous and therefore cannot be disturbed.

Damages for Infringement

The District Court confirmed the master’s finding that the damages proved to have resulted from defendant’s infringement, which occurred during the period 1963 to April 1969, were $37,-743.03. ' Plaintiffs argue that this amount is grossly inadequate.

First, it is contended that Vibra Screw could have increased its prices on the feeders it sold by 10 per cent if it had not been for defendant’s unlawful competition. Plaintiffs did not offer testimony of customers or other evidence, except testimony of Wahl himself, that customers would have been willing to pay more than they did for Vibra Screw’s feeders. In accepting the master’s finding on this point, the District Court stated:

“The master found that in spite of the defendant’s infringing efforts, Vibra Screw always maintained a dominant share of the sales of the patented feeders, and based on Vibra Screw’s pricings before, during and after infringement ended, defendant’s sales had little or no effect on Vibra Screw’s pricing of its feeders.”

The court held that these findings were supported by sufficient evidence and not clearly erroneous. (See Rule 53(e)(2), Fed.R.Civ.P.) We agree.

Next it is argued that if it had not been for defendant’s unlawful competition Vibra Screw would have reduced its advertising expense by $300,000. This argument is based upon evidence that the “industry norm” of expenditures for advertising in relation to total sales, as reported in the December 29, 1969 issue of Advertising Age, was about half that spent by Vibra Screw, and the testimony of plaintiff Wahl, the company’s president, that it spent twice the industry norm to combat defendant’s illicit feeder competition. There was, however, no effort to show how much of Vibra Screw’s advertising related to feeders and how much related to its products other than feeders.

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Bluebook (online)
511 F.2d 209, 19 Fed. R. Serv. 2d 1209, Counsel Stack Legal Research, https://law.counselstack.com/opinion/eugene-a-wahl-and-vibra-screw-feeders-inc-and-cross-appellees-v-ca7-1975.