Illinois Tool Works, Inc. v. Brunsing

Decision Date23 February 1968
Docket NumberNo. 22147.,22147.
Citation389 F.2d 38
PartiesILLINOIS TOOL WORKS, INC., a Delaware corporation, Appellant, v. Rex L. BRUNSING, an individual, Brunsing & Sons, Inc., a Nevada corporation, and Tay-Pak Corporation, a Nevada corporation, Appellees.
CourtU.S. Court of Appeals — Ninth Circuit

Carl Hoppe, Ernest M. Anderson, San Francisco, Cal., Richard R. Trexler, Chicago, Ill., for appellant.

Louis F. Hawkins, San Rafael, Cal., for appellees.

Before HAMLEY, HAMLIN and DUNIWAY, Circuit Judges.

HAMLEY, Circuit Judge:

Two suits for patent infringement, brought by Illinois Tool Works, Inc. (Illinois Tool) against Rex L. Brunsing, Brunsing & Sons, Inc., and Tay-Pak Corporation, were consolidated for trial and appeal under the above heading. The patents in question are Holmberg Patent No. 2,646,911, issued July 28, 1953, and Poupitch Patent No. 2,923,406, issued on February 2, 1960. The patents, and the accused device, pertain to the packaging, in "six-packs" of conventional tin cans of food and beverages. Judgment was entered for defendants and plaintiffs appeal.1

Plaintiffs claimed that defendants made, used and sold devices that infringe on claims 1, 2, 4, 5, 7, 8, 9, 10, 11, 12 and 13 of the Holmberg patent, and claims 1 and 2 of the Poupitch patent. Issue was drawn on this contention and the trial court made detailed findings supporting defendants' position. The findings of fact and conclusions of law of the trial court are reported in 254 F.Supp. 281, and the discussion which follows assumes familiarity with those findings and conclusions.

In its findings the trial court noted a number of differences between the claimed structures of the Holmberg patent and the accused device. Some of these differences, the court found, brought about substantially different results than were contemplated and achieved by the Holmberg patent.

According to the findings: Under Holmberg cans may be inserted or removed from the carrier only while they are at an intermediate angle to the carrier, while, in the accused device, the cans may be inserted vertically and may be removed by tipping the can upwardly at right angles to the clip, or horizontally; under Holmberg the carrier can be grasped only by means of a handle which permits the carrier to swing freely, while in the accused device, finger holes may be used as a means of grasping the carrier; and under Holmberg the cans will disengage from the carrier if the latter is tilted, whereas, in the accused device, the cans remain firmly attached to the carrier without regard to the angle at which the carrier is held.

The court found that the structural differences between the Poupitch patent and the accused device are at least as marked as in the...

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4 cases
  • American Original Corp. v. Jenkins Food Corp.
    • United States
    • U.S. Court of Appeals — Fourth Circuit
    • December 21, 1982
    ...borne in mind that the specification may not be used to enlarge a claim, but can be used to limit a claim." Illinois Tool Works, Inc. v. Brunsing, 389 F.2d 38, 40 (9th Cir.1968). In the instant case, the Marvin '112 patent's specifications refer to the Carlson patent, stating: One example o......
  • Cool-Fin Elec. Corp. v. International Elec. R. Corp.
    • United States
    • U.S. Court of Appeals — Ninth Circuit
    • February 25, 1974
    ...file folder history, while not available to enlarge a patent claim, can explain an ambiguity. See, e.g., Illinois Tool Works, Inc. v. Brunsing, 389 F.2d 38, 40 (9th Cir.1968). In light of these principles, we find that claims 3 and 153 properly state that a novel feature of the IERC device ......
  • Del Mar Engineering Laboratories v. Physio-Tronics, Inc.
    • United States
    • U.S. Court of Appeals — Ninth Circuit
    • March 23, 1981
    ...drawings must be looked to in order to properly grasp the invention or explain any ambiguity in the claims. Illinois Tool Works, Inc. v. Brunsing, 389 F.2d 38, 40 (9th Cir. 1968). This language, as well as similar language in United States v. Adams, 383 U.S. 39, 49, 86 S.Ct. 708, 713, 15 L.......
  • Turtle v. Institute for Resource Management, Inc.
    • United States
    • U.S. Court of Appeals — District of Columbia Circuit
    • January 22, 1973
    ...is still pending before the District Court. Illinois Tool Works, Inc. v. Brunsing, 378 F.2d 234 (9th Cir. 1967), judgment aff'd, 389 F.2d 38 (9th Cir. 1968) ; Williams v. Bernhardt Bros. Tugboat Service, Inc., 357 F.2d 883 (7th Cir. If, following the issuance of our mandate in this case, th......

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