209 F. 364 | 2d Cir. | 1913
The patentee in his specifications states that the object of his invention is to produce a méthod of insulating the electrodes of gas, oil, or vapor engines that will not foul injuriously, so that it will remain in working order, causing the igniting
“It is a well-known fact that up to this time the fouling of the insulation of the electrodes * * * has been the greatest objection to the successful use of an electric current * * * to pass between the points of stationary electrodes placed in the cylinders or firing-chambers of [such] engines, said points not being in actual contact with each other.”
This refers to the “jump-spark” system, not to the “make and break” system, of electric ignition.
“It is an established fact that when the insulation of the electrodes * * * gets foul the intense current will not pass between the points of the electrodes and make the required firing-spark, but follows the fouling of the insulation without making a spark of sufficient intensity to explode the charge . * * * of combustible * * *; but when the insulations are not fouled and in good working order the electric current will jump across between the points of the electrodes, and thereby cause an electric spark of sufficient intensity to fire or explode the charge,” etc.
The specification states that patentee’s improvement consists-—
“of a counterbore or recess around the electrode at a point where it enters the cylinder of a gas, oil, or vapor engine of such size and depth as will prevent the explosive mixture from cylinder or firing-chamber circulating into said cavity far enough to deposit the products of its combustion onto the insulator at the deepest part of the counterboie or recess. I find by actual test that a counterbore or recess for a quarter-inch electrode works satisfactorily by being half-inch diameter by one and one-quarter inches deep; but a counterbore or recess half-inch diameter by three inches deep is still more satisfactory, for the reason that it more completely prevents circulation. A counterbore or recess of larger diameter than its depth will not prevent circulation and consequent fouling.”
The combination of the patent is shown in Figure 1.
In this the electrodes are shown entering the firing-chamber, 6 showing the space where the electric current should form firing-spark; 7 shows the insulator and 8 the deep, small-diameter counterbore or recess. The specification closes with the statement:
“It is immaterial what shape or form the counterbore or recess is made in, so that it surrounds the electrode and of such size and depth that it prevents the circulation of the explosive mixture into the deepest part of the same.”
The claims are:
“1. In a gas, oil, or vapor engine igniter or sparker, a recess or eounterbore around*366 the electrode or electrodes and above its or their sparking points when said electrodes are used vertically, for the purpose of preventing an injurious accumulation of the products of combustion or other foul matter on the insulation of said electrodes, substantially as and for the purpose set forth.
*365 
*366 “2. In a gas, oil, or vapor engine igniter or sparker, a recess or counter-bore of such size and depth as to prevent the explosive mixture used in the cylinder from circulating into said counterbore or recess far enough to come in contact with its deepest part around the electrode or electrodes at or near the point where said electrode or electrodes leave the insulator to enter the cylinder^ or firing-chamber, for the purpose of preventing an injurious accumulation of the products of combustion or other foul matter on the insulation of said electrode, substantially as and for the purpose set forth.”
That air at the bottom of a deep narrow recess would be “trapped,” so that there would be no circulation at the bottom when there was disturbance in the space into which the recess opened, was a fact in physics well known long before there were any gas engines. That circumstance, however, would not defeat this patent, since Canfield, so far as this record discloses, was the first to point out that, when a sparking-device of this type was so constructed as to secure the presence of such a recess between the two electrodes, the fouling of insulation ánd the establishment thereby of a path for the electric current other than the one in the course of which there was a spark-jump would be avoided.
None of the various patents and publications introduced in evidence as showing the prior art have anything to say about the desirability of having such a recess between the electrodes. It is contended, however, that some of them show such a recess narrow and deep—that such recess would necessarily act as the patentee’s does, because every such recess .under the law of physics above referred to would trap the air at its bottom; and since the recess was there in the prior art, it makes no difference that the prior inventor who placed it there did not appreciate or announce the useful function it performed.
Reliance is had on a former decision of this court. Consolidated Bunging Co. v. Metropolitan Brewing Company, 60 Fed. 93, 8 C. C. A. 485. In that case the claim of the patent (for an automatic pressure relief) covered “a mechanical fit valve, in combination with a surrounding chamber, for containing water to prevent fouling.” A prior patent disclosed a mechanical fit valve with a chamber ábove and surrounding the valve seat. Although the prior patentee said nothing about putting water in this chamber to prevent fouling or for any purpose, it was manifestly capable of holding water, and, being the identical mechanical combination of the patent sued on, it was an anticipation. But in the Bunging Case the presence of the chamber surrounding the valve was clearly pointed out in the specifications of the earlier patent; “the shell containing the valve which rests on the arm” clearly indicated a chamber with mechanical fit valve. Its presence was not inferred from an inspection of the drawings of the earlier patent.
*367 “A patent for a mechanical combination is not anticipated by a drawing in a prior patent which incidentally shows a similar arrangement which is not essential to the first invention, and was not designed, adapted, or used to perform the function which it performs in the second invention, and where the first patent contains no suggestion of the way in which the result sought is accomplished by the second inventor.”
“The positive wire of the induction apparatus is attached at m to a brass button n seat,ed on a porcelain cylinder o: this is set firmly into the cover p, which closes the hole leading to the cylinder. It is perforated and contains the wire q drawn out to a point. Opposite this stands the point of a second wire r, which is screwed into the brass case s, which, on its part, is seated in the ¿over p. The negative wire of the igniter is led onto the cylinder. If, now, a current circulates, the sparks will leap from q to r.”
There is nothing in this description which calls for any recess at all. Referring to the drawing, we perceive that if the brass case y be an imperforate hollow cylinder there will be a recess between its interior and the porcelain cylinder o. But unless the brass case y be imperforate the recess will not trap air; and there is nothing to show that it is to be imperforate. Its only function is to seat the “second wire” which is screwed into it and it could perform that function perfectly if it were a framework casing. Moreover, assuming that the case were imperforate: From-its outlet into the cylinder to the bottom of the recess the depth would about equal the diameter, which would not be the recess of the patent. If only that part of the recess which lies to the left of the head of the porcelain be considered, the drawing would indicate a recess considerably deeper than its width, but there is nothing anywhere to show that the proportions of the drawing are to be strictly adhered to. The brass which surrounds and supports the porcelain might be continued further to the right, or the brass case y might be of larger interior diameter, with the result that there would no longer be a recess of the sort described in the Canfield patent. There is nothing to show that the proportions of the drawing are other than accidental; the draughtsman would have correctly depicted “Die GasMaschine” of the prior art, if he had proportioned the parts differently, showing a recess whose depth was no greater than its width.
The next reference to the prior art is a patent to Sainsevain (U. S, No. 461,802). Its Figure 4 and a brief excerpt from the specifications indicate the device:
“52 52a is a pair of posts, the iower ends of which project into the exploding-chamber 53 and carry platinum points 54 54a to produce the spark. The insulator-disk 55 fits snugly in the tube 50 and it securely holds the- posts 52, 52a within its opening 56. The insulator 55 is confined by means of an upper plate or disk 57 within the tube 50, and a lower plate or disk 58, that rests upon an interior ledge or shoulder 59, turned in the tube. The upper plate 57 is secured by means of screws 60, tapped through the tube or shell and into the same. The upper plate 57 and the lower plate 58 are provided with openings 61 62 respectively, which are large enough to leave spaces swrounding the posts 52 52a, thus preventing the contact of the latter. Line-wires lead from the electrical apparatus now to be described and are connected to the posts 52 52a.”
Here there are recesses 6£ with insulation at the bottom of them; as drawn they are much deeper than wide, but their proportions are apparently an accidental conception of the draughtsman. The specification is elastic; it provides that the spaces around the posts shall be large enough to leave spaces around the posts 5% 5£a thus preventing contact. Such spaces might be very much larger than Fig. 4 shows and still fit into the combination of the patent. So, too, the thickness of the lower plate 58 is the draughtsman’s accidental selection. The specifications state merely that it is a lower plate or disk between the porcelain and a shoulder in the tube. It might just as well have been shown in the drawing as one-fourth the thickness indicated in Figure 4 and would then be all that the patent calls for. But if its thickness were reduced, the depth of the recesses would also be reduced, and with an enlargement of the clearance spaces the recess of Canfield would entirely disappear from the Sainsevain drawing, while the drawing would still remain a perfectly accurate picture of the description which Sainsevain gave of his invention.
To predicate anticipation on such accidental resemblances found in drawings only would be to extend the doctrinfe of the Consolidated Bunging Case, supra, too far. In that case mere shape and proportions were matters of no importance, the containing, chamber of the patent there in suit, so long as .it was capable of holding water around a valve, might be of any shape, or size, or proportions; therefore a prior containing chamber having that capability was a good reference, whatever its shape, or size or proportions. In Canfield’s patent, however, the proportions of the recess constitute the gist of the invention. It will not be necessary to discuss in detail the other similar references to patents of the prior art. We do not find that any of them in the specifications and claims call for a recess between electrodes which enter a sparking chamber, the proportions of which recess are made
It is next contended that the patent in suit taught the art nothing of value, because it did not indicate what insulating, material should be used. Porcelain was well known in this art as an insulator; it was used in prior devices and is used to-day. Naturally it would be the material which one skilled in the art would select if he were to build a spark-plug according to the instructions of the patent. Respondent’s expert testifies that when made in large masses porcelain is neither electrically nor mechanically strong enough to meet the strains to which a spark-plug is exposed. The patent states, as we have seen, that a recess for a quarter-inch diameter electrode works satisfactorily by being half-inch diameter by one and a quarter inches deep: Assuming this to be the diameter of recess shown in the drawings of the patent and using it as a scale, the witness figured out that the size of the insulators of the patent would be some 3 to 4 inches in diameter and further testified that efforts to produce porcelain insulators of that size which would stand up to their work proved a failure. We find this evidence unpersuasive. If such large masses of porcelain did not work, the natural thing to do would be to reduce their size. The specifications do not require a slavish adherence to the proportions shown in the drawings. If a quarter-inch electrode requires a half-inch recess, an eighth-inch electrode would presumably be accommodated by a quarter-inch recess, which would reduce all other proportions by half. Moreover the patent is not restricted to two recesses, one around each electrode.- The claim includes “a recess * * * around the electrode or electrodes.”
The very “Gas-Maschine” so much relied on (assuming that its casings were imperforate) shows a recess surrounding one electrode (which- electrode is embedded in porcelain of apparently the small dimensions of that in the modem spark plug) while the other electrode is seated on the metal casing. The teaching of the patent is that there shall be a recess of proportions to trap air between the two electrodes. It seems to us. that a skilled mechanic, familiar with the prior art as shown in this record, would have had no difficulty in securing such recess and at the same time using a porcelain insulator of a size small enough to be stable.
As to infringement: We do not understand that there is any real contention as to infringement of the first claim. All the spark-plugs of defendant which are complained of have the specific recess of Can-field. It is asserted that some of them nevertheless get foul, which to us seems immaterial. Much of the briefs is devoted to a discussion as to the meaning of the second claim. It is unnecessary to consider it, since infringement of the first claim is sufficient to entitle complainant to whatever relief it may be entitled to.
It is further contended that relief should be denied the complainant because of the laches of his predecessors in title; he was prompt enough himself, but, of course, is affected by any laches of prior owners. The patent was granted October 18, 1898. Canfield died March 12, 1899,.and the patent was held by his administrator till March 13,
As to any claim for profits and damages, however, the case is peculiar. As we have seen, there is no direct proof that any of the successive owners actually knew of infringement. It is argued that they could not have known of open and notorious infringement, because they were none of them in the business of making and selling engines or spark-plugs. In that respect the case is peculiar. Usually patents are held by persons whose business is of a sort that the patent pertains to; here the owners were not engaged in any such business. The patentee was a lumberman; his administrator was a trust company ; his brother was a lumberman; Wheeler was a mechanical engineer; the Association Patents Company was a mere holding company. None of these successive holders made any use of the patent, except that the patentee made two or three spark-plugs for use in his own power pleasure boat. None of them manufactured any of these spark-plugs, nor did they procure any to be manufactured, nor did they sell any, nor did they, as far as appears, make the slightest effort to induce any one engaged in the automobile industry to make such plugs on some basis of royalty. During this long period the successive owners treated this patent as if it were of no importance whatever, of no use to any one. Apparently they made no effort even to ascertain if there, were any infringements of it, or to caution or warn anybody against infringement. The infringement was not an act done in a corner; had the owner taken the trouble to send a competent man to the warerooms of a few dealers in automobile supplies (of this sort), or to any of the
Where owners have remained thus supine for many years, shutting their eyes to what was going on in the art to which the patent belonged, and thus leading defendants and others to suppose that they intended to make no claim that their patent dominated a portion of' that art, it seems to us inequitable that they should come at. this* late day and insist on being granted an accounting for damages and profits-during their long period of inaction.
The decree is reversed, with half costs of this appeal, and cause is-remanded, with instructions to decree in favor of complainant on the first claim, with an injunction, but without any accounting for profits or damages, and one-half costs to complainant.