Claude Neon Lights, Inc. v. American Neon Light Corporation

39 F.2d 548, 5 U.S.P.Q. (BNA) 347, 1930 U.S. App. LEXIS 4113
CourtCourt of Appeals for the Second Circuit
DecidedMarch 3, 1930
Docket57
StatusPublished
Cited by31 cases

This text of 39 F.2d 548 (Claude Neon Lights, Inc. v. American Neon Light Corporation) is published on Counsel Stack Legal Research, covering Court of Appeals for the Second Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Claude Neon Lights, Inc. v. American Neon Light Corporation, 39 F.2d 548, 5 U.S.P.Q. (BNA) 347, 1930 U.S. App. LEXIS 4113 (2d Cir. 1930).

Opinion

MANTON, Circuit Judge.

Appellants on this appeal seek to review a preliminary injunction entered in this suit for patent infringement, on patent No. 1,-125,476, issued to appellee’s assignee January 19, 1915. We held the patent valid and infringed in Claude Neon Lights, Inc., v. Machlett & Son, 27 F.(2d) 702. The validity of the patent is not questioned on this appeal, but infringement is contested.

The appellant American Neon Light Corporation manufactures the alleged infringing luminescent tubes. Appellants Shulhof, McGuirk, Lefcourt, Haas, Unger, Niekelsburg, Jacobs and White were directors of the American Neon Light Corporation, and are sued as infringers. White, Bose, Greene, and Doctor were conducting a business under the name of Neon Tube Sign Corporation, selling the tubes, and it was not a de facto or de jure corporation. These appellants are assuming to aet as its officers and agents. Jacobs and Brooks were doing business as Kane, Brooks & Co., selling the stock, and thus provided funds for the corporation, and are charged with aiding and abetting the infringement or as contributing infringers.

The patent relates to the illumination by luminous tubes containing rare gases of the atmosphere, particularly neon gas. This gas becomes luminescent by the passage there-through of high-voltage electric currents. The current is introduced into the gas through conducting electrodes at the two ends of the tube. These electrodes are internal and in direct contact with the gas. The outer ends of the electrodes are connected to terminal wires which pass outward through the glass walls in which they are hermetically sealed. *549 The ends of terminal wires outside of the tubes are connected to the two sides of the high-voltage circuit. The gas in the tube acts as a conductor of electricity and becomes “ionized,” with the result that the gas is caused to glow, and, in the case of neon, it gives off a distinctive orange red color. The neon gas alone in the neon tube is a conductor of electricity through the tube, and it is the luminescence of the gas which causes the illumination.

In his experiments, the inventor found that the production of a successful neon light tube was more than the problem of constructing the tube, placing the gas in it, sealing it up, and passing current through it. He found that, if he did this, he would not have a neon tube, but a tube of an entirely different color showing the spectra of active gases, such as carbon dioxide, hydrogen, and nitrogen, which would completely mask and discolor the spectrum of the neon.' The neon gas is extremely sensitive to impurities. The most minute trace of carbon dioxide would completely mask the distinctive orange red color of neon and would turn the tube blue in color, which is a characteristic color of carbon dioxide. Moreover, it was found that impurities increased the heating and reduced the electrical efficiency of the tube. Sueh impurities were found to be due to three causes: (a) They might exist in the neon itself prior to its introduction into the tube; (b) they are constituents of the air existing in the tube prior to its exhaustion (air contains active gases sueh as nitrogen, oxygen, carbon dioxide, and water vapors, and these constitute the impurities- which are troublesome in neon tubes); and (c) they are present on and under the surface of glass walls and electrodes to which neon gas is exposed.

The patent therefore calls for a neon tube and that the impure air in the tube be exhausted to a high state of vacuum prior to the introduction of neon. This was accomplished by the use of an efficient pump. The impurities which exist on and under the surface of solid substances, such as the, electrodes and glass walls of luminescent tubes, are called occluded gases, and must be driven out from these parts to such an extent that, when the tubes are ultimately in commercial use, no more occluded gases will issue forth from these parts by the heating which takes place with the normal current. The problem of producing a neon tube of long life was solved by the inventor, as we pointed out in 27 F.(2d) 702. In the presence of rare gases sueh as neon, the sputtering of the electrodes is very pronounced, and in tubes of this kind there is a dark area immediately surrounding the electrodes, and, if the electrodes are small, there is a considerable drop in potential occurring at the dark space, which causes the electrodes to become highly heated. This drop in potential is called electrode drop.

The inventor found that, under these conditions, the electrode metal evaporized or sputtered at a high rate which means that the particles of material of which the electrode is composed are tom off and deposited on the glass walls of the tube surrounding the chamber in which the electrode is located. Accompanying this vaporization or sputtering, as the particles of the metal are tom from the electrode, they carry with them a certain quantity of neon gas which is pocketed by the particles of electrode material against the glass walls. This pocketing of the gas soon causes so much of the gas to- be used up and the pressure reduced that the neon tube no longer remains conductive when the lamp goes out. This difficulty was Overeóme by increasing or extending the surface area of the electrodes. It resulted in a reduction of the electrode drop of potential. The inventor expressed this extension of the electrode area in terms of a current area relationship in excess of 1.5 square decimeters-per ampere. As a result, the life of the tube was increased to the extent that the tube burned continuously without refilling for a length of time comparable with the life of an incandescent lamp. The luminescent neon tube contained purified neon gas, internal electrodes deprived of their occluded gases and a surface area of the electrodes extended to exceed 1.5 square decimeters per ampere of current to decrease the vaporization of the electrodes by reducing the electrode drop- and thereby to prevent depletion of the neon gas.

Claim 1 of the patent in suit is charged to be infringed.

“A luminescent tube containing previously purified neon and provided with internal electrodes for illuminating said gas, said electrodes being deprived of occluded gases and having 'an area exceeding 1.5 square decimeters per ampere, to decrease the vaporization of the electrodes and prevent the consequent formation upon the walls of the tube, in proximity to said electrodes, of deposits containing said gas, whereby the luminosity of the tube is maintained constant for a very considerable period of time without a fresh introduction of gas.”

*550 The appellants contend their tubes do not contain previously purified neon. They contend that the “previously purified neon,” as called for by the claims, means purifying the neon in the tube as by aging. But the patent is not limited to any particular method of purifying the neon or to any particular method of manufacturing the tube. It does not mean purification on the spot; it means neon gas which is in the tube, and, when operating in the regular way, has been purified previous to its regular commercial use, and this the appellants’ does. 27 F.(2d) 702. The test of whether a tube contains previously purified neon is shown by the characteristic color of neon and there is ample testimony that the appellants’ tubes ejlearly show such color. A product claim is not to be limited by the process of its manufacture. Procter &

Free access — add to your briefcase to read the full text and ask questions with AI

Related

A. Stucki Co. v. Schwam
634 F. Supp. 259 (E.D. Pennsylvania, 1986)
Rohm and Haas Co. v. Dawson Chemical Co., Inc.
557 F. Supp. 739 (S.D. Texas, 1983)
Thompson Tool Co., Inc. v. Rosenbaum
443 F. Supp. 559 (D. Connecticut, 1977)
US PHILIPS CORPORATION v. National Micronetics, Inc.
410 F. Supp. 449 (S.D. New York, 1976)
Superior Testers, Inc. v. Damco Testers, Inc.
315 F. Supp. 934 (E.D. Louisiana, 1970)
Screen Gems-Columbia Music, Inc. v. Mark-Fi Records, Inc.
256 F. Supp. 399 (S.D. New York, 1966)
United States v. Joseph G. Lease
346 F.2d 696 (Second Circuit, 1965)
H. M. Kolbe Co. v. Shaff
240 F. Supp. 588 (S.D. New York, 1965)
Eversharp, Inc. v. Fisher Pen Co.
204 F. Supp. 649 (N.D. Illinois, 1961)
Upjohn Company v. Italian Drugs Importing Co.
190 F. Supp. 361 (S.D. New York, 1961)
Babee-Tenda Corporation v. Scharco Manufacturing Co.
156 F. Supp. 582 (S.D. New York, 1957)
Bar's Leaks Western, Inc. v. Pollock
148 F. Supp. 710 (N.D. California, 1957)
Frank B. Killian & Co. v. Allied Latex Corp.
94 F. Supp. 281 (S.D. New York, 1950)
Addressograph-Multigraph Corp. v. Cooper
60 F. Supp. 697 (S.D. New York, 1945)
Breese v. Tampax, Inc.
42 F. Supp. 115 (S.D. New York, 1941)
National Geographic Soc. v. Classified Geographic, Inc.
27 F. Supp. 655 (D. Massachusetts, 1939)
Southwestern Tool Co. v. Hughes Tool Co.
98 F.2d 42 (Tenth Circuit, 1938)
General Electric Co. v. Munder Electrical Co.
22 F. Supp. 291 (D. Massachusetts, 1938)
Cookson v. Louis Marx & Co.
23 F. Supp. 615 (S.D. New York, 1938)

Cite This Page — Counsel Stack

Bluebook (online)
39 F.2d 548, 5 U.S.P.Q. (BNA) 347, 1930 U.S. App. LEXIS 4113, Counsel Stack Legal Research, https://law.counselstack.com/opinion/claude-neon-lights-inc-v-american-neon-light-corporation-ca2-1930.