Coldren v. Empire Rubber Mfg. Co.

175 F. 361, 1909 U.S. App. LEXIS 5752
CourtDistrict Court, D. New Jersey
DecidedDecember 18, 1909
StatusPublished

This text of 175 F. 361 (Coldren v. Empire Rubber Mfg. Co.) is published on Counsel Stack Legal Research, covering District Court, D. New Jersey primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Coldren v. Empire Rubber Mfg. Co., 175 F. 361, 1909 U.S. App. LEXIS 5752 (D.N.J. 1909).

Opinion

CROSS, District Judge.

Two patent suits between the above-named parties are before the court for adjudication. The testimony was taken under stipulation that it should apply to both causes, as a result of which there is but one record, and the cases were argued as one. The bills and answers are of the usual character in patent cases. The patents involved are No. 738,295, for an apparatus for making sealing rings, issued to the complainant September 8, 1903, and No. 138,885 for a process for making lipped sealing rings for canning-jars, issued September 15, 1903, to the complainant. They will be considered in the above order.

Of the apparatus patent the first claim only is in issue. It reads as follows:

“J. In apparatus of ilie class described, the combination of a vessel having a former-tube provided with a longitudinal bead-forming groove in one side of its bore, a mandrel centered in and spaced from the former-tube, and means to force rubber in a fluid condition from the vessel through the former-tube and thereby produce a rubber tube having a longitudinal bead on one side-substantially as described.”

The purpose of the inventor was to provide a machine for making, rubber sealing rings, having laterally projecting ears, by means of which the rings might be drawn outwardly at one point from between the neck of the jar and the jar cover, whereby the vacuum in the jar [362]*362would be impaired and its cover more readily removed. At first it was the intention of the inventor, as he admits, to procure a patent for a sealing ring of the character just described, but upon investigation he found that this could not be obtained, as a sealing ring having one or more projecting ears was very old in the art. Then it was that he applied for and procured the patents which are involved in these suits. The general structure and mode of operation of the apparatus patent have been clearly and accurately stated by defendant’s counsel in the following language:

“Tbe apparatus patent, wliich will be first discussed, shows and describes a familiar form of extrusion machine adapted for molding continuous forms from plastic materials, such various compounds commonly embodying india rubber as an ingredient. The apparatus comprises a csdindrical horizontal case, into which a hopper opens at its upper side, near one end. At the end of the case opposite the location of the hopper is a former, consisting of a shell and a mandrel or spindle, centrally located within the shell. Within the case is a worm, rotatable by means of a crank. The apparatus is so constructed that, when proper plastic compound is xioured into the case through the hopper and the worm is rotated, the compound is forced by the worm toward the further end of the cylinder and through the annular space intermediate the former-shell and the mandrel or spindle, and finally is extruded from the machine in a tubular form. The former shell is i)rovided with a groove on its inner face, which operates to form a longitudinal bead on the exterior face of the tube extruded from the former. The object of this structure is to form a tube having an external longitudinal bead, which tube may be sliced or cut laterally into thin rings, having each an ear or projection by which it may be seized and removed from the canning jar upon which it may be used.”

While the application for this patent was pending, or shortly after-wards, the complainant led the defendant to believe that he had obtained a patent for the ring itself, and thereupon made an arrangement with the defendant for its manufacture, both for his own and' the defendant’s account. All that it was necessary, however, for the defendant to do by way of preparation for such manufacture, was to make a new former or die, or rather, as the complainant himself testifies, to make a longitudinal groove inside of an old former or die, and attach it to a suitable machine. The machine to which this modified former or die was attached and used was an old one that had been in use by the defendant for 10 or 15 years, and was one to which a former of any particular design could be attached by screwing it to the head, and to which, as a matter of fact, a multitude of different formers had been attached and used by the defendant prior to the use of the particular one in question. It was substantially the machine of the complainant’s patent. The defendant had previously made on this machine, merely by the substitution of appropriate formers and spindles or pins, prop blocks, gas tubing, carriage tires, circular sealing rings, and other rubber products of different internal and external configuration. There- is abundant testimony to show that, if a hollow article were desired, a pin or spindle of the requisite form would be inserted in the machine, which pin or spindle would' form the shape of the inside of the rubber tube, and that, if any particular external form were desired, an appropriate form of die or former would shape the outside of the article as desired. In other words, it appears con[363]*363dnsively by the evidence that, if a hollow article of any particular external or internal form were desired, all that was necessary to make it was to provide a pin or former, or both, as the case might be, of the requisite shape to produce the required article. This is all that the defendant did, moreover, when at the complainant's request it was asked to make the lipped sealing ring. It simply made a longitudinal groove in an old former and then used it on an old machine, the operation of which ivas in no wise altered thereby. The defendant’s superintendent testified, and his testimony is supported by that of several other witnesses, that, if a customer requested the manufacture of an article of a different shape from that which the company had manufactured before, he would take the shape of the desired article, llave their machinist make a suitable former, and, if necessary, a suitable spindle, insert them in the machine, and proceed with the manufacture, and that this was done every day.

There is, moreover, evidence in the case which shows that a die exactly like that of the complainant’s patent, except in size, was in use several years before his patent was applied for. The complainant claims, however, that its use was only experimental, and that it was soon abandoned; but, so far as the evidence shows, its use was successful and its product perfect. That more tubing was not manufactured by means of it might well be because the demand for the article, owing to its character, was limited. At all events, it shows that when a lipped product was desired a die suitable to its manufacture ivas readily devised.

Again, the Hotchkiss patent, No. 105,335, of 1870, discloses a machine essentially like that of the patent under consideration. Hotchkiss says:

-r make use of a die formed with a corrugated interior surface, so as to vive to the rubber a headed appearance upon its surface. I also use a removable die and changeable core, so as to snake tubes or strips of any desired sizo or sectional shape.”

Agaiti:

‘■The movable end cap, k. is screwed into the end of the cylinder, a, and is adapted to receive the die, 1, which die, i. is screwed into the cap, k, so as to be changed for making different articles, and the interior of said die is to be grooved with fine grooves in order that a ribbed surface may be made upon the tube or strip.”

And the third claim of his patent reads as follows:

•‘The die. i.

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Bluebook (online)
175 F. 361, 1909 U.S. App. LEXIS 5752, Counsel Stack Legal Research, https://law.counselstack.com/opinion/coldren-v-empire-rubber-mfg-co-njd-1909.