34 F.2d 519 | M.D. Penn. | 1929
Tbe bill of complaint charges tbe defendants with tbe infringement of letters patent No. 1,229,978, issued to William J. Kuntz on June 12,1917, for an improvement in drier beads, and assigned by him on June 22, 1920, to the Ruggles-Coles Engineering Company, plaintiff, and prays for an injunction and an accounting.
In their answer tbe defendants deny tbe plaintiff’s title to tbe patent in question and deny infringement. On tbe pleadings and evidence, three questions arise for disposition:
Eirst, tbe title to tbe patent in suit; secondly, infringement; and, thirdly, if there was infringement, tbe liability of McGann and Kuntz, as individuals.
Eirst, tbe title to letters patent No. 1,229,978. Tbe defendants, McGann and Kuntz, were for many years officers and employees of the plaintiff company. In 1922, they formed tbe McGann Manufacturing Company, Inc., which company immediately began to manufacture and sell driers which tbe plaintiff claims constituted infringement of tbe patent in suit.
The subject-matter of the patent in suit was invented by defendant Kuntz in 1916 or 1917, while be was an officer and employee of the plaintiff company.
On June 22, 1920, Kuntz assigned tbe letters patent in suit to tbe plaintiff company, under tbe following circumstances: Late in 1919, while an officer and employee of tbe plaintiff company, Kuntz was authorized to act as agent of H. W. Hardinge to purchase a controlling interest of stock in tbe Steaey-'Scbmidt Manufacturing Company and in the Ruggles-Coles Engineering' Company, of which latter company Kuntz was then vice president and general manager. Kuntz exhibited to Hardinge what purported to be an option from tbe York Trust Company, trustee and agent of tbe said companies, to purchase tbe said stock in tbe two above-named companies for a consideration of $298,162.50. To secure for Hardinge control of tbe Ruggles-Coles Engineering Company, Kuntz agreed to seE 38 shares of his own stock in that company at the same price per share. Tbe total price to be paid by Hardinge for tbe controlling interest of stock in these two companies was $303,387.50. Tbe option was exercised in January, 1920, and tbe stock was presented to Hardinge, who paid approximately $150,000 in cash and gave three promissory notes of $50,000 each with tbe stock itself as collateral security.
In June, 1920, Hardinge and his associates became suspicions of this transaction, and a conference was held in York, Pa., on June 19, 1920, into which Kuntz was called and charged with having made a secret, profit on the transaction. Kuntz denied this charge and left the conference after having been advised to see counsel.
Early in tbe morning of June 21, 1920, Kuntz came into tbe office of tbe company in York and commenced a recital to William T. Baker, president. of the plaintiff company, of bis part in the purchase of tbe two companies by Hardinge. At Baker’s suggestion, they called at tbe office of George T. Sebmidt, counsel for the company, where Kuntz signed a written statement of tbe stock transaction. In this statement Kuntz admitted that tbe option which be bad shown
As a result of the suit brought by Hardinge to obtain possession of the $50,000 note given to MeGann and the stock which he put up as collateral, Hardinge was compelled to pay the note which MeGann had received.
In the last paragraph of the typewritten statement signed by Kuntz, he agreed “to forthwith assign, transfer and set over unto the Ruggles-Coles Engineering Company, certain Letters Patent of the United States on an improvement in Drier Heads, which were issued to and stand in my name.”
It is the contention of the defendant Kuntz that this transfer was made under duress and that the title of the patent was .to be held in trust by Hardinge, as security in the event that Hardinge should be obliged to pay the $50,000 note given to MeGann. There is no evidence in the case to warrant the conclusion that Kuntz acted under duress when he assigned the patent to the Ruggles-Coles Engineering Company, except the unsupported testimony of Kuntz himself. His testimony is contradicted by at least three reputable witnesses for the plaintiff. Nor do the circumstances support the defense of duress and trusteeship. During the 3% years which elapsed between the assignment of this patent and the claim made in this suit that he was acting under duress, Kuntz never claimed or charged that he was acting under duress- at the time of the assignment of the patent. In the suit brought by Hardinge against Kuntz, the York Trust Company, and Robert G. MeGann to recover the $50,-000 note given to MeGann and the stock which he had put up as collateral, Kuntz not only permitted a decree pro confesso to be taken against him, but he 'took the witness stand and described in detail the entire stock transfer, and nowhere in his testimony did he state or claim that the assignment in question was made under duress and that his property had been turned over to Hardinge in trust.
, The testimony and circumstances in this case fail to support the contention of the defendants that the assignment of the patent in suit was made under duress, and that it was held in trust by Hardinge; but, on the other hand, it supports the contention of the plaintiff that it was voluntarily assigned to the plaintiff company and that the title to the patent belongs to the plaintiff company.
Next, is the question of infringement: The patent in suit covers an improvement in driers and relates more particularly to improvements in the feed heads of driers of that type including rotating drying shells, a stationary feed head, and forced draft means through the shells and the feed heads. The invention was made by the defendant Kuntz while he was employed by the plaintiff company and was designed to overcome certain disadvantages in the Ruggles drier, and more particularly the drier covered by Ruggles patent, No. 1,105,927J which was then in use by the plaintiff company.
The defendant admits the manufacture and sale of three slightly different types of driers, as shown in Plaintiff's Exhibits Nos. 3, 4, and 5, designed respectively as the “Carbide” “Standard,” and “Crescent” types of feed heads for driers. One machine each of the “Carbide” and “Crescent” types have been made and sold by the defendants. Defendants have manufactured and sold approximately twenty machines of the “Standard” type. They admit that one machine of the “Carbide” type made and sold by them infringes the first five claims of the patent in suit, but deny that it infringes claim 6. They deny the infringement of any claim of the patent in suit by either their “Standard” or “Crescent” types of drier.
There are eight claims in the patent in suit, of which the first six claims are alleged to have been infringed. Claim 1 of the patent in suit recites a combination of features or elements, as follows: “In a drier, a feed head having an internal cylindrical shell, a drying drum having an inner shell, an extension secured to said inner shell of the drum and projecting into the feed head at one side and into the said cylindrical shell thereof and a gas conveying flue leading into the opposite side of the feed head and into said shell extension.”
The use of this inner cylindrical shell was one of the contributions of the patent in suit to the art. One of the disadvantages found in Ruggles patent, No. 1,105,927, upon which the patent in suit was an improvement, was that there was a tendency for the hot gases to short-circuit at the juncture between the stationary flue and the rotating “extension” which was carried by the “inner shell.” This tendency to short-circuit the hot gases was minimized in the patent in suit by providing a stationary “interior shell” of substantial length marked 27 on the drawings in the letters patent in suit, which encircles for nearly its full length the juncture between the stationary flue, marked 13, which causes the hot gases to follow “an abruptly tortuous path,” and which further causes them to go through the inner shell, marked 10.
This inner cylindrical shell of the patent is attached to the inner face of the vertical wall of the feed heads* In place of this inner cylindrical shell, the defendants have used in their structure a sleeve mounted to the stationary fuel conveying flue so as to co-operate with said stationary flue and the revolving inner shell. This change is one which could be made by any one exercising ordinary mechanical skill, and it produces no change of function and no difference in the mode of operation.
Defendants’ position, as stated on page 24 of defendants’ brief, is that the inner shell, 27, of the feed head of the patent in suit, is illustrated, described, intended to be, and patented as an integral part of the complete feed head, and that therefore the sleeve substituted by the defendants is not a mechanical equivalent.
There is nothing in the prior art or in the claims and specifications of the patent which limits the patent to sueh a construction. The patent shows one form, presumably the best form, in which the invention can be embodied; but the patentee is entitled to protection on all forms which embody the substance of his invention.
It is clear that the defendants have infringed claim 1 of the patent in suit.
Claim 2 of the patent repeats word for word the language of elaim 1, with the additional elements, “the feed head having an enlarged opening around the said flue to admit air between the same and the said extensions and into the inner shell of the drum.” Every element of elaim 2 can be read upon defendants’ machine, and it is clear that elaim 2 of the patent in suit has been infringed.
Claim 3 of the patent in suit has the following combination of elements: “In a drier a drum having inner and outer shells, a feed head having an inner shell into which the inner shell of the drum extends, and a plate around the lower portion of the feed head between the same and the inner shell thereof, to prevent the entrance of material into the feed head from the lower portion of the adjacent end of the outer shell of the drum.”
The “back-spill plate,” which is the new element of elaim 3, is a distinct advance over the prior art, although the step taken is not large, in that the patent in suit is the first in which sueh a plate is provided. Defendants’ structure has sueh a plate, differing only slightly from that of the patent in suit. The infringement of claim 3 is clear, since every element of the claim can be read upon defendants’ machine.
Claim 4 repeats word for word the language of claim 3, and adds, “and a feed chute extending angularly through the feed head at one side of the said shell thereof.”
The infringement of claim 4 is clear, since every element of the elaim can be read upon the defendants’ machine.
Claim 5 repeats word for word the language of elaim 4, and adds, “said feed chute consisting of a feed hopper and a feed plate, the latter of which is secured at its lower inner end to one end of the said lower plate of.the feed head.”
The infringement of claim 5 is clear, since every element of the elaim can be read upon the defendants’ machine.
Claim 6 of the patent in suit covers the following combination of elements: “In a drier, a drum having inner and outer shells, a feed head into which the inner shell extends, having a flanged opening of a diameter less than that of the outer shell, a bearing band externally of the feed head and around the flange of said opening, and a sealing ring around and engaging said band and secured to the said outer shell.”
Claim 6 of the patent in suit covers a “blocking device” or “seal” designed to prevent any escape of the dust-laden hot gases. It consists of two coasting members, namely: (1) A stationary bearing band 20, and (2) an inwardly-projecting sealing ring carried upon the interior surface of said drum-shell, 11, and itself carrying adjustably a cylindrical portion, 21, which fits around said bearing band 20.
Defendants’ construction comprises two rings or discs placed on edge in parallel relation to each other, with another edgewise disposed parallel ring or disc between the two freely positioned not necessarily in contact with either of the other two discs, and so that the singlé ring between the others may rotate and may contact with either ring or it may he ont of contact with both of them.
Seals of the same type and general arrangement as that used by the defendants were- old in the art long prior to the patent in suit. They operated to seal the openings between the rotating shell and the parts of the head with which the rotary shell engaged. They did not perform the function of “preventing any escape of the dust-laden hot gases,” as did the “seal” of the patent in suit.
In view of the crowded state of the art, the patentee is entitled only to protection against the use of the particular type of sealing device shown in the patent in suit, and therefore claim 6 is not infringed by any of defendants’ three types of driers.
As to the “Crescent” type of defendants’ machine, the evidence shows that this type does not have the inner shell, nor does it show that any equivalent element has been substituted in place of this inner shell, and therefore the evidence does not show that the defendants’ “Crescent” type of drier infringed the plaintiff’s patent.
The remaining question in this suit now presents itself: The liability of Kuntz and MeGann personally. Both Kuntz and MeGann were for many years connected with the plaintiff company. After leaving the company, they organized the MeGann Manufacturing Company, with themselves as a majority of the stockholders. They were both thoroughly familiar with the patent in suit, the invention of Kuntz, and as officers of the defendant company they willfully and knowingly participated in the defendant company’s manufacture and sale of infringing machines. They are both, therefore, personally liable jointly with the McGann Manufacturing Company, Inc. Dangler v. Imperial Machine Co. (C. C. A.) 11 F.(2d) 945.
And now, August 24, 1929, it follows that defendants’ “Carbide” and “Standard” types of feed heads infringe, claims 1, 2, 3, 4, and 5 of the patent in suit, and a decree for an injunction, reference, accounting, and costs may, be prepared in accordance with this opinion.
