This suit for infringement by the defendant of Claims Nos. 7, 13 and 14 of U. S. Patent No. 1,673,727 to one Aronson through the sale of a cigar lighter known as “Trig-a-lite” came before this court in 1934. Upon that appeal a decree of the District Court dismissing the suit for noninfringement was affirmed on the ground that “Trig-a-lite” was a spring actuated device that did not come within the element of the claims which called for a “rack and gear” or “gear means”. Art Metal Works v. Abraham & Straus, 2 Cir., 70 F.2d 639. We have since sustained a petition for review and the cause again comes before us for a rehearing upon the original record.
The Aronson patent also came before this court in a prior suit between the same parties in which Claims 7, 13 and 14 were held valid and infringed by a lighter known as “Roller Bearing.” Art Metal Works v. Abraham & Straus, 2 Cir., 61 F.2d 122. It is argued on behalf of the appellant in the present suit that the “Trig-a-lite” lighter so closely resembles “Roller Bearing” that it falls within the claims and should have been held to infringe on the reasoning and authority of the decision in the prior suit. We think that the decree there is essentially res judicata as to the validity of the claims.
It is argued that the Wolf German Patent No. 221,577, which was not before the court in the prior suit, anticipates Aronson. But this is not so, for the Wolf Patent shows a large cap which is a part of the receptacle. This cap forms a cumbersome outer housing. The lighter has a telescopic shell instead of a finger piece and is little nearer to Aronson than was the British Patent to Bergmann or the Austrian Patent to Hauzenberger which we held in our first *941opinion did not anticipate the Aronson lighter or deprive it of validity.
The claims read as follows:
“7. A lighter having in combination a receptacle, an abrada’nt wheél journalled on top of the receptacle, a pyrophoric member, means including a spring projecting said pyrophoric member into engagement with said wheel, a wick extending into said receptacle and projecting from the top thereof on one side of the wheel, a finger piece located on the other side of • said wheel, said finger piece being adapted to be pressed downwardly, a spring tending to force said finger piece upwardly, a snuffer for said wick, and means whereby upon pressing said finger piece downwardly said wheel is rotated by manual pressure to ignite the wick and said snuffer is removed from the wick, said last mentioned means comprising a rack on the finger piece and a gear operated thereby, and pawl and ratchet means whereby the wheel is operated by the gear.”
“13. A lighter having in combination a receptacle, said receptacle being elongated in horizontal cross-section, an abradant wheel centrally disposed over the top of said receptacle and journalled about a horizontal axis, a wick projecting from the top of the receptacle on one side of the wheel, a snuffer for the wick, a finger piece on the opposite side of the wheel from the wick, said finger piece being mounted independently of the snuffer, and means whereby operation of said finger piece will operate the wheel and snuffer by manual pressure, said last mentioned means including gear means operated by the finger piece and acting to operate both the snuffer and the wheel.”
“14. A lighter having in combination a receptacle, an abradant wheel journaled on top of said receptacle, a pyrophoric member, means projecting said pyrophoric member upwardly from the top of said receptacle into engagement with said wheel, a wick extending into said receptacle- and projecting from the top thereof on one side of the wheel, a finger piece carried on top of the receptacle and adapted to be pressed downwardly, a spring tending to force said finger piece upwardly, a snuffer for said wick, and means whereby upon pressing said finger piece downwardly said wheel is rotated by manual pressure to ignite the wick and said snuffer is removed from the wick, said last mentioned means comprising a rack on the finger piece and a gear member operated thereby.”
In our original opinion describing the patented device and holding the above claims infringed by the Roller Bearing lighters sold by the defendant we said (61 F.2d 122):
“The lighter mechanism comprises a fuel receptacle which is flat or elongated in horizontal cross section on the top of which the working parts are mounted. They are mounted in a certain order, namely, the wick with its snuffer cap is at one end of the. upper part of the receptacle, in the center is a rotatable wheel, which the patent calls an abradant wheel, and to the right of that is a finger piece which is used by the operator to effect the desired result of lighting the wick, which is under the snuffer cap and extends down into the fuel receptacle. The abradant wheel is so arranged that it rotates in one direction only, which means that the sparks as generated are projected toward the wick. This arrangement of the three main parts of the device, namely, the wick with its snuffer cap, the wheel, and the finger piece, was called by Mr. Hammer (complainant’s expert) ‘a one, two, three arrangement.’ The wick and its flame are far removed from the thumb so as to avoid possibility of burns when striking a light, and the construction is so thin and flat as to be adapted to be carried in the pocket. Moreover, the device has no cover or lid, and yet the parts are so arranged that there is no likelihood of their being caught in the clothing. The moment the finger piece is released, a spring forces it up, the snuffer is replaced, and the wick covered automatically.
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“Aronson made an advance over the prior development of cigar lighters by his arrangement, of operating parts, so that the wick was at the side furthest away from the finger of the operator; the snuffer, abradant wheel, and thumb piece were on the top of the receptacle; all three were free from a cumbersome outer housing and the manual actuation of snufier and abradant wheel by the finger piece through gears enabled the operator to obtain just the shower of sparks he might require at the moment.”
We also said in the original opinion that in the “Roller Bearing” lighter the pin employed is: “in substance and effect a rack with but one tooth, and the; slot in which it engages amounts to a gear. If one or *942two teeth had been added to the finger piece and to the lever carrying the snuffer, there could be no question that not only claim 13, but also claims 7 and 14, would be infringed. We think so close a physical and mechanical approximation to the claims of the patent as is found in the ‘Roller Bearing Lighter’ is an infringement of all three claims. Even the element ‘a rack on the finger piece’ of claims 7 and 14 is covered by the construction. McMichael & Wildman Mfg. Co. v. Ruth (C.C.A.) 128 F. 706.”
In the former opinion in the present suit (70 F.2d 639, 640) it is said that “the pin and slot combination of the roller bearing device has been eliminated” in the “Trig-a-lite” lighter. The writer adds: “The manual pressure on the finger piece is used to tension the spring coiled around the axis; that is, the whole spring is tensioned. This pressure is started in the spring without regard to the speed at which the finger is depressed. The rate at which the abradant wheel and the snuffer move is independent of the rate at which the finger is depressed but is dependent upon the strength of the spring. A notch of the pawl holds the snuffer lever down when the finger is pressed so that the spring is tensioned until the end of the downward movement and is unlatched by the finger piece which causes the spring to throw up the snuffer lever until the other notch in the pawl contacts with the shaft on which the abradant wheel is mounted. Thus the snuffer lever cannot be forced up further by the spring. This method of operation differs from both the patent in suit and the roller bearer device.”
The defendant argues that the critical distinction between the “Trig-a-lite” and “Roller Bearing” lighters is that in the former the finger piece upon being pressed down does not rotate the wheel “by manual pressure to ignite the wick”, as called for by claim 7, and that on the contrary the wheel is rotated by the stored up energy of the coiled spring. Rotation by manual pressure is also called for in Claims 13 and 14.
We do not regard this difference as sufficient to enable the defendant to escape infringement of the claims. The spring is ¿laced in series with what is as fully a rack and gear as the mechanism in Roller Bearing, which we held to be such in Art Metal Works v. Abraham & Straus, 2 Cir., 61 F.2d 122. A pin attached to the finger piece serves to trip a latch which brings the spring into action that finally operates the abradant wheel and produces the spark. It-is true that in “Trig-a-lite” the movement of the wheel is more speedy and constant than in “Roller Bearing” and is not finally controlled by manual pressure. But even if the mechanism that produces the spark in “Trig-a-lite” is mechanically different from that in “Roller Bearing” the difference consists merely in the addition of a latch to effect a release of the stored up energy of the spring. This simple addition of a spring .and latch involves such a ready evasion of the gear means indicated by the patent as to deprive the invention of all security. Even though in view of the prior art the patent be a narrow one it ought not to be so limited in equivalents as to render the invention practically worthless. In all these claims the manual pressure starts the movement finally resulting in the rotation of the abradant wheel and the raising of the snuffer so that the results are practically identical and the means are obvious equivalents.
It is further argued that in view of the patent to Gebhardt the complainant is not entitled to treat the operation of the spring with its stored energy as equivalent to that of gears. But the patent to Gebhardt has swinging side walls like the Austrian patent to Hauzenberger which we held in our original opinion was insufficient to deprive the patent in suit of validity. It is true that Gebhardt had a spring to rotate the abradant wheel and' to produce the spark. But the spring was employed in a lighter unlike the Aronson device in arrangement and having no such convenient assemblage of parts.
As we view it Gebhardt and Hauzenberger were operated by side pressume and Bergmann and Wolf by pressure on telescopic shells. It is true that by selection from the prior art we may find the various elements appearing in the “Trig-a-lite” lighter. That may br done in most patents for a combination of elements, but it seems to us that the manufacturer of “Trig-a-lite” more closely imitated the structure of Aronson than the devices shown in the prior art. If the defendant wished to escape infringement it could do so by adopting the prior art, but instead of doing this it preferred to avail itself of the substance of the Aronson invention.
The contention that the testimony of Mr. Hammer was inconsistent in itself and *943with complainant’s position and also that the defendant is estopped to raise the defense of res judicata is of no merit. The positions taken by experts and counsel upon the trial cannot control the law of the case.
Decree reversed with directions to enter a decree for the complainant holding Claims 7, 13 and 14 valid and infringed with the usual reference as to damages.