General Electric Co. v. Munder Electrical Co.

22 F. Supp. 291, 1938 U.S. Dist. LEXIS 2407
CourtDistrict Court, D. Massachusetts
DecidedFebruary 17, 1938
DocketNo. 4155
StatusPublished
Cited by2 cases

This text of 22 F. Supp. 291 (General Electric Co. v. Munder Electrical Co.) is published on Counsel Stack Legal Research, covering District Court, D. Massachusetts primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
General Electric Co. v. Munder Electrical Co., 22 F. Supp. 291, 1938 U.S. Dist. LEXIS 2407 (D. Mass. 1938).

Opinion

McLELLAN, District Judge.

This is a suit for infringement of reissue patent No. 18,678, granted December 6, 1932, to Johannes Ostermeier of Althegnenberg, Germany, assignor by mesne assignments to General Electric Company, the plaintiff. The original patent, No. 1,776,637, was granted to Ostermeier on September 23, 1930. The defendants are the Munder Electrical Company, a Massachusetts corporation; Charles F. Munder, receiver of Munder Electrical Company under an order of the superior court of Massachusetts for • Hampden county; Charles F. Munder, Robert V. Munder, and Rushworth I. Munder. The patent in suit is for a flash lamp suitable for photographic purposes. In their answer, the defendants set up numerous defenses, including noninfringement, lack of invention, anticipation by the prior art, invalidity of the reissue proceedings, lack of title in the plaintiff, and estoppel. Of these, the defenses of lack of invention and of invalidity of the reissue proceedings are chiefly stressed.

The following, so far as it contains statements of facts and conclusions of law, may be deemed a compliance with Equity Rule 70%, 28 U.S.C.A.' following section 723.

Since the plaintiff conclusively proved its title to the Ostermeier invention at the trial, no further reference need be made to. this issue.’ It was also shown that the defendants1 manufactured and sold lamps substantially identical with those of the plaintiff, and no serious attempt was made to controvert infringement at the trial. I pass, therefore, to a consideration of the more difficult question of anticipation and lack of invention.

- The invention in question is a flash lamp designed to permit high speed photography in places where it would otherwise be impossible for lack of sufficient light. Prior to the introduction of the plaintiff’s device, the only means generally available for taking such photographs were so-called flashlight powders of various types, flash sheets, and flash cartridges. These methods were all similar in that they involved burning a highly explosive chemical in free air in order to get the required light. Their use was unsatisfactory for several obvious reasons. There was a substantial danger from fire in their use indoors, they gave off a quantity of unpleasant smoke, and they were dangerous both to the user and to bystanders because of their explosive characteristics. As a result of these defects, they were generally unsuitable for amateur use and could be used professionally only to a limited extent. Since the introduction of the plaintiff’s lamp, the use of flash powders has become obsolete. The use of flash lamps has made possible professional photography in many places where the use of flash powders had been either impracticable or absolutely prohibited, and has opened a complete new field »for amateur photography. The use, of flash lamps by amateur photographers has now reached such proportions that national advertising is done by the Eastman Kodak Company in order to promote sales of photographic materials manufactured by it.

The plaintiff’s invention consists of a loose filling of aluminum or other foil inside an ordinary lamp bulb containing oxygen at a pressure approximately one-fifth that of the atmosphere. The foil is ignited by means of a small wire of sufficient resistance to burn out in oxygen at very low voltages and fitted with a fulminating composition to facilitate combustion of the foil. The igniting wire is mounted approximately in the center of the lamp, and is connected to an ordinary lamp socket base at the small end of the lamp by means of wires brought out through the seal in the neck.

•The following claims are in suit:

“1. A flash lamp particularly for photographic purposes,- comprising a closed [293]*293gas-tight transparent bulb containing an oxygen gas; and a foil in the bulb adapted to emit light upon combustion thereof with the oxygen and disposed within effective range of an ignition device.”
“4. A flash lamp particularly for photographic purposes, comprising a closed gas-tight bulb having a gas therein; an igniting device in said bulb; and a foil in the bulb adapted to emit light upon combustion thereof with the gas and disposed within effective range of the ignition device.”
“8. A flash lamp particularly for photographic purposes, comprising a closed gas-tight transparent bulb containing an oxygen gas, and a loose filling of foil in the bulb adapted to emit light upon combustion thereof with the oxygen and disposed within effective range of an ignition device.”
“9. A flash lamp particularly for photographic purposes, comprising a closed gas-tight bulb having a gas therein; aq ignition device in said bulb; and a loose filling of foil in the bulb adapted to emit light upon combustion thereof with the gas and disposed within effective range of the ignition device.”
“10. A flash lamp particularly for photographic purposes, comprising a closed gas-tight transparent bulb containing a gas at a pressure substantially below atmospheric 'and a loose filling of foil in the bulb adapted to emit light upon combustion thereof with said gas and disposed within effective range of an ignition device, the thinness of the foil being such that the foil will burn with lightning speed.”

In order to show invalidity of the patent in suit, the defendants rely principally upon two prior disclosures. One is the invention of Vierkotter, represented by United States patent No. 1,625,108. The other is two articles by First Lieutenant A. D. Kiesling of the German Navy, published in Berlin in 1898 and in 1900, respectively, in a magazine entitled “Photographische Mitteilungen.”

The ' Vierkotter invention was an attempt to burn ordinary flash powder inside a lamp bulb. In order to prevent an explosion which would break the lamp, the powder was mixed with an oxygen producing substance, and burned virtually in a vacuum. Under such circumstances, explosion of the lamp did not occur, because there was nothing to expand inside the lamp. Since the accidental introduction of air made the device dangerous, it was necessary to include a safety contrivance designed to make it impossible to ignite the lamp should the vacuum become incomplete. In 1929, Hauser & Co. in Augsburg, Germany, were the owners of the Vierkotter patent. Apparently this could not be made into a marketable article, because of the danger of explosions which had not been wholly obviated. Early in that year, Ostermeier, the present patentee, a consulting engineer and physicist, was employed to develop something more practicable. He found that by using aluminum foil in a bulb filled with oxygen at reduced pressure, a lamp could be produced inexpensively which would not explode. Such a lamp did not have the weakness of the Vierkotter device, because, if air accidentally leaked into it, the foil simply did not burn or burned so slowly that no explosion occurred. He found that, if the foil was burned in oxygen at atmospheric pressure, some of the lamps exploded.

In his 1898 article, Kiesling, who was an amateur and primarily interested in advanced amateur photography, described a homemade lamp, in which a magnesium band is burned in oxygen. The principal objection to this lamp was that it required a time exposure of about three seconds. In the 1900 article, Kiesling described an improvement, in which he burned aluminum leaf in oxygen.

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Bluebook (online)
22 F. Supp. 291, 1938 U.S. Dist. LEXIS 2407, Counsel Stack Legal Research, https://law.counselstack.com/opinion/general-electric-co-v-munder-electrical-co-mad-1938.