S. S. Kresge Co. v. Champion Spark Plug Co.

3 F.2d 415, 1925 U.S. App. LEXIS 3753
CourtCourt of Appeals for the Sixth Circuit
DecidedJanuary 10, 1925
Docket4065, 4070, 4071
StatusPublished
Cited by18 cases

This text of 3 F.2d 415 (S. S. Kresge Co. v. Champion Spark Plug 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
S. S. Kresge Co. v. Champion Spark Plug Co., 3 F.2d 415, 1925 U.S. App. LEXIS 3753 (6th Cir. 1925).

Opinion

KNAPPEN, Circuit Judge.

This suit is for infringement of claims 1, 3, and 6 of patent No. 1,180,799, April 25, 1916, to Stranahan, assignor to plaintiff, on spark plugs for internal combustion engines, and for alleged unfair competition in the sale of plugs and cores in imitation of the design, form, dress, and appearance of plaintiff’s plugs.

The Champion Spark Plug Company, hereinafter called plaintiff, is, and for many years has been, manufacturing spark plugs under contract with the Eord Company, for use in the manufacture of Eord automobiles, and latterly in tractors as well; also in selling plugs and porcelains to a large public renewal trade. S. S. Kresge Company, hereinafter called defendant, is the proprietor of a line of 5 and 10 cent stores, which made sales, alleged to constitute unfair competition, of plugs and porcelains bought’ from the manufacturer thereof, the Myles-Standish Manufacturing Company, which conducted the defense herein. Defendant denies validity of patent, infringement, and unfair competition.

*416 The interlocutory decree found the claims in suit valid and infringed, and sustained the charge of unfair competition in the marketing of plugs and porcelains contained in cartons bearing legends such as' “Standard spark plug for Fords,” “Ford Plugs,” “Ford Core,” and “Manufactured expressly for use in the Ford engine,” which markings were held to effect a palming off on the public of defendant’s wares as plugs and cores of plaintiff’s manufacture. There were appropriate orders for injunction .and accounting.

No. 4065 is defendant’s appeal from both branches of the interlocutory decree. Later defendant presented to the District Court three exhibits, and asked determination whether their sale (respectively) would infringe'the patent or violate the -injunction against unfair competition. No 4070 is plaintiff’s appeal from the order denying injunction against the sale of certain cores without any inclosing cartons, as well as the sale of such cores in cartons bearing the legend “Not made by the Champion Spark Plug Company, nor supplied as Ford factory equipment.” No. 4071 is defendant’s 1 appeal from so much of the order as enjoined the sale of such cores in cartons which, while correctly giving the name and address of the manufacturer, bore the words “Universal spark plug core for Fords.”'

Previous to the commencement of this ‘ 'suit plaintiff had brought suit in the United States District Court for the District of Nebraska against the Myles-Standish Company for infringement of the same claims of the Stranahan patent as involved here, as well as for unfair competition, based on substantially the same grounds as are before us. The District Court found the claims valid and infringed, and sustained the charge of unfair competition. The United States Circuit Court of Appeals for the Eighth Circuit affirmed generally the decree of the District Court. 282 F. 961. The record in the Standish Case is made part of the record in the instant case.

Patent Infringement. — The office of ‘ a spark plug is to furnish intermittently a spark which shall explode the charge of gas in the cylinder, so directly creating the motive power. In the type here involved, the plug consists of a two-part metal shell inclosing a “core,” which consists of an electrode in its1 protecting insulating member, commonly, called a porcelain, and which here is that substance. The two parts of the shell screw together, .thus holding the core firmly in position. The lower section screws into an opening therefor in the easing of the engine cylinder. In order to insure perfect insulation of the electrode, there must be gas-tight connection between shell - and core, and a perfect centering of the core in the shell is essential to the maintaining of a proper spacing of the spark-producing electrodes in core and shell, respectively. The stated objects of the invention are to provide means for producing these results, and without injury to the porcelain.

The patent specification shows an annular enlargement of the porcelain intermediate its ends, and forming a projecting seat which fits into a depression in the inner wall of the lower section of the shell. A sheet-metal gasket, having a tapered shoulder, conforms to and fits over the upper porcelain shoulder, and receives the thrust of the follower nut, which forms the upper section of the shell. The lower sheet-metal ring-shaped gasket is seated on and receives the thrust from the lower porcelain shoulder. The outer edge of the lower gasket is turned upward to provide an upstanding flange encircling the base portion of the lower porcelain shoulder. The upper gasket has, extending downwardly from its tapered shoulder portion, a skirt portion which surrounds the upper end portion of the porcelain enlargement, and upwardly from the upper edge of the skirt portion a contracted portion fitting more or less closely around the- porcelain and above the shoulder,. its upper edge (preferably < contracted) coaeting with the porcelain and centering thereon in spaced relation thereto; the gaskets being maintained in centered relation to the shell through the fitting of their adjacent flanges against the wall of the shell opening. Each of the gas-. kets incloses a cushion of asbestos, or other suitable material, to aid in making a tight connection 'between the porcelain and the shell.

The general type of plaintiff’s removable core plug was old, as was the use of gaskets of some form to make gas-tight connection between shell and core. The novel element of the combination claims in suit relates to the form of the upper gasket, which was designed to aid in effecting core-centering and (indirectly) gas-tight connection, which latter function is performed principally by the lower gasket.

*417 The defense of invalidity of patent embraces anticipation and lack of novelty. The claims in suit are printed in the margin. 1 *3The defense of anticipation is based, principally, at least, upon the patent to Gates, No. 1,141,052, May 29, 1915, which patent antedates Stranahan. It was not discovered by the defendants until after the decision of the Circuit Court of Appeals of the Eighth Circuit, and that court denied leave to file supplemental bill to review its decision on grounds including the discovery of the Gates patent. The reason for this refusal does not appear.

We are not convinced that this reference establishes anticipation. It calls for a “ring packing” between the follower nut and porcelain shoulder, upwardly extending flanges on the packing strip separated by a Y-shape groove, one of which flanges is forced by the nut’s action “outwardly against the base [shell],” the other inwardly against the porcelain, thereby “sealing the porcelain in the base.” It calls also for a “lower flange” of the “packing1” (below the porcelain shoulder) which is by the nut’s action expanded into contact with the shell. The invention “particularly relates to the packing for sealing the porcelain to the base.” The inventor’s only thought seems to have been to provide a construction “free from leakage”; the idea of thereby centering the porcelain seems not to have occurred to him.

It does not appear that Gates’ plug was ever manufactured and sold commercially; its method of operation differed from that of Stranahan; it seems to have been more distinctively a mere packing.

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Bluebook (online)
3 F.2d 415, 1925 U.S. App. LEXIS 3753, Counsel Stack Legal Research, https://law.counselstack.com/opinion/s-s-kresge-co-v-champion-spark-plug-co-ca6-1925.