217 F. 787 | E.D. Pa. | 1914
To discuss or even refer to the facts bearing upon the special features of this case would give inordinate length to this opinion. These facts are found and stated in the special findings.
The plaintiff is the owner by assignment of letters patent No. 924,-722, granted June 15, 1909, for a dry-room, hanger, its proprietary right in which, it asserts, the defendant has infringed. The case for the plaintiff on its broad merits is not an appealing one. What it has
The practical effect of a ruling in plaintiff’s favor would be, not only to prevent defendant from using its own device, but to turn the ownership and control of it over to the plaintiff. In a proper case for the awarding of an injunction, such a hardship is more apparent than real, for the .reason that a. patentee cannot, of course, be deprived of the exclusive use of his invention merely because some one had subsequently improved upon it; and, if the improver does not patent his improvements, the first patentee may use them. Moreover, the courts cannot deprive a plaintiff of his property, nor deny to him a right or a remedy which lawfully belongs to him because not in sympathy with the use which he makes of his own. It is a reason, however, for requiring him to prove his right and> would be a reason for withholding, in a proper case, not his legal rights or legal remedies, but those super-legal remedies which are .awarded, if at all, not of right, but of grace.
The device under discussion is essentially a traveling clothespin. The course of its travels is confined to a room artificially superheated. This is the dry-room in which the laundried articles are dried out. The hanger feature is that the device is attached to and suspended from an endless chain, by which it is carried around the room and through the superheated air until the article' is dried. The hanger must be so constructed that the articles may be easily inserted between the gripping jaws, which will hold them suspended until the drying process is complete, and then permit them to be automatically dropped in the receptacle provided for them. The plaintiff’s invention was intended to meet these requirements. The defendant’s device does meet them.
Another branch of the defense is lack of novelty. The application does not. distinguish in terms between that to which the claimed invention relates as already known to the 'art and that which is claimed to be new. This omission, coupled with the absence of precision of statement in what is set forth, makes it not a little difficult to be sure of the meaning intended to be expressed. If, by the expression “having an object," he meant to state in what the merit of his invention inhered, then surely he claimed novelty only in his described mode of hanger construction below, and including what he terms the “yoke.” If this is' merely illustrative and is descriptive of a preferred form only, then it' is difficult to grasp the thought in mind, unless it was to broadly cover any hanger attached to a carrier and having a device by which articles could be taken hold of and held during, transit, and which would automatically release its grip at a preselected place. Such a claim would be broader than .the then state of the art would support or justify.
The claims of the patent with whiqh we are now concerned are 9, 11, and 14. Claim 14 by itself is unintelligible. Claim 11 is evidently intended to cover a device which might be described as the one-half of the illustrated device. The claim, therefore, which has been chosen to most adequately present the case for the plaintiff is 9. Of the several elements which make up the parts of the device embraced in this claim, the crossbar with the extremities turned down, and having buttons or other forms of gripping faces on the ends, was old. The releasing arm working on a pivot and having another button or gripping face to meet and co-operate with the button on the crossbar was also old. One of the new features in plaintiff’s device, as the inventor had conceived them and as we find he meant to describe them, consisted of having the pivoting pins, which held the ends of the releasing arms, separated when the hanger had' two arms. He accomplished this by widening the shank below the crossbar and making of it what he describes as a “central depending plate.” This was for the purpose of accomplishing the two results referred to in the special findings.
Another new feature was that the releasing arm should extend upward parallel with and close to the shank and should move toward the
The applicant describes his crossbar as a U-shaped yoke. This is not a happily chosen or accurately descriptive phrase. If an alphabetical comparison were sought, the Greek letter “Omega” is more readily suggested by the form of this voke. It has certainly no resemblance to U. The so-called yoke is nothing more than a crossbar. We think-therefore the claims of the patent should be restricted to the combination named above.
We wish to accord to the plaintiff the full benefit of the principle that, if an idea of value and novelty is present in a device, the patentee is not to lose his rights because of any mere lack of ability to express his thoughts with absolute scientific accuracy. New of us could stand such a test. The combining of old things with new, however, while it should give a right to the combination found, should not prevent another inventor from using the old elements in combination with other new ideas, provided the combination is new, and in it he uses only the old elements with his own novel ones.
This brings us to the last matter of defense, which is the fact of infringement. We find no resemblance in mechanical construction or in principle of construction or operation between the device of the defendant and that of the plaintiff, except in those elements which were known before the patent in suit was thought of. The view of plaintiff’s expert that the releasing arms of defendant’s device extend upward because they are above the grip does violence to the use of language and attempts to foixe a construction which the words will
Defendant' has given notice of an application for leave to introduce-evidence of the use of a device, knowledge of which had come to-defendant since the trial. This should be granted, if at all, only upon terms. Defendant has leave to make such application within five days on notice to plaintiff. If made and allowed, the case may be set down for a further hearing. Otherwise bill dismissed, with costs to defendant.
Special Findings of Fact and Discussion Thereof.
1. The plaintiff is the owner by assignment of letters patent No. 924,722, granted June 15, 1909, for improvements in'“dry-room hangers.”
2. The facts involved in a finding of the features in which the respective devices of the plaintiff and defendant are common to both in form and in principle are these:
(1) Each is a “dry-room hanger,” designed to aid in the same result of suspending laundried articles exposed to artificially superheated air while being carried through and around a drying room to be dried to a place of deposit and' to be dropped there by the hanger automatically releasing its grip. Such hangers are old in the art, and this feature is not of itself included in the claims of the patent, nor is it involved in the case further than in the question of whether plaintiff’s device is an operative one. This fact is separately found.
(2) For the purpose of being thus carried, each has at the top a means of attachment to an endless chain transporting contrivance which in principle and form are alike. The only difference is that the means of attachment provided is from opposite sides. This feature is also old in the art, and not of itself covered by the claims.
(3) Both hangers have,' below the top part referred to, depending shanks, which in principle are alike and perform the same function. They differ in shape and dimensions. That of the plaintiff is relatively long and narrow and has an additional attachment feature which the-device of the defendant omits. The latter consists of two relatively wide and short plates, fastened together with screws, and one plate sliding into a broad slot provided in the other. This depending shank is common to all hangers, is old in the art and not in itself made the subject of any of the claims.
(4) Each has a crossbar or transversely extending part called in the application a “yoke,” having half of a gripping device at the ends. This latter feature is more fully described in a later finding. They differ somewhat in form and shape, and differ also in construction to-meet the different ways in which the same function is performed. In function and in principle they are, however, alike. The points of dif
(5) Each has a further depending central shank below the crossbar or “yoke.” These differ in form, shape, construction, relative position, and dimensions. They are alike only in the respect that each has one function common to both. This part of the hanger affords the means or base for the support of the arms hereinafter referred to and the pivoting points of their movement. The differences can be most clearly expressed in connection with another feature of the general device. The bearing of the prior state of the art, the differing functions, or, more accurately speaking, the added functions which one has over the other, and the bearing of the patent claims are separately found.
(6) Each has two arms. Each arm extends from the lower shank, to which one end is attached, and in the same direction as the “yoke.” Each moves as on a pivot at the attached end, so as to permit the other end of the arm to move freely and come back to its original position. Each arm in each device has a gripping surface of the other half of the gripping device, which is made up by means of this gripping surface being brought in contact with the corresponding gripping surface at the end of the yoke; the article to be held suspended being pressed between the two surfaces. The devices are alike in that the two arms are adapted to be moved independently and either simultaneously or at different times by being brought in contact with any construction operating as a cam placed at any point in the course of the transported movement of the hanger which may be desired. The effect of contact of arm and cam is to so move one end of the arm as to separate the gripping surfaces, thus allowing the article held between them to drop in any preselected place. The two devices differ radically in the other means provided for meeting the performance of ihe functions which they have in common. These differences involve both mode and principles of construction and of operation, and are made the subjects of independent findings.
(7) In the plaintiff’s hanger this central shank takes the form of what the patentee described as a depending plate. In position it follows that of the upper shank. It is, relatively to that of the defendant, long and wide. Length is given to it in order that the pins which form the pivoting attachment of the arms may be on a horizontal line with the bearing point of the gripping surfaces and the part of the arm between the pivot and the grip, so that all may be on the same line or all in exact alignment. Width is given to it in order that there may be a sufficient field of operation, so that there will be no interference of one arm with the other at the upper end. This lower shank or inverted post, as it is in the defendant’s device, takes, in plaintiff’s design, the form of just what the patentee terms it — “a depending
(8) In the defendant’s device the crossbar or yoke has the outline shape of an ox yoke, with the ends curving downward and inward occupying the place of bows in an ox yoke. The ends are flattened out, and on this flat part there is a rectangular shaped depression, in which is placed a fairly well-fitting, piece of bone with a flat surface. This is very much like what woodworkers call a “dutchman.” This- bone supplies a gripping surface. In the yoke is a slot extending from near the shank-post to the flat end. There are two arms which, when at rest,, have the outline of extended wings. They are inserted in and
3. The device of the plaintiff, as illustrated in the drawing and as embodied in the exhibit, is inoperative. The metal in the latter is resilient. Two causes of its failure are that, if the elbow knob of the arm is not forced down so as to hold the goods by the bite of the jamb of the lower arm against the knob at the end of the yoke, the grip will not hold. If too much force is applied, the knob at the elbow of the arm drops to an inoperative position. We find that the device cannot be made operative through any improvement in mechanical construction, and can be made so only by dropping the novel features of the device described in the application and claims.
4. All the parts of this device above the yoke are old in the art. The construction called the “yoke” is also old, except in respect to the novel feature of a relatively wide and long depending plate having the special and novel functions which this plate was thought by the inventor to have. The width was given to prevent the releasing arms from interfering with each other above the yoke, and this was meant to be assisted by the knob of the releasing arm engaging the side of the wide plate. Length was given to it, so that the pivoting pin might be on the same horizontal plane with the gripping knobs, so as to provide the jambiug action described. The releasing arms are old, except in the novel feature of having a right-angle bend at the gripping knob, so as to permit the arm to extend upward parallel with and near the upper shank, in order to reduce the width of the field of operation. The gripping device is old, except in the novel feature of the jambing action above mentioned. The automatic release is old. The adjustment of grips at each end of a body or crossbar, so that two articles may be held and released at will, is old. The only combination of dements which is novel is that of these old elements above described with the new elements above mentioned.
The defendant has not infringed upon plaintiff’s patent.