Safety Gas Lighter Co. v. Fischer Bros.

236 F. 955, 1916 U.S. Dist. LEXIS 1337
District Court, D. New Jersey·Decided July 29, 1916·Published·Cited by 9 cases

Opinion

HAIGHT, District Judge.

The plaintiff is the owner of patent No. 1,011,643, issued to it as assignee of Frederick H. Porheroy on December 12, 1911, and patent No. 1,021,363, issued to Matchless Lighter Company, as assignee of Joseph B. Gould on March 26, 1912, and subsequently assigned to the plaintiff. Both patents relate to hand-operated devices for igniting gas. The defendant is engaged in the manufacture and sale of such a device, which, it is claimed, infringes claims 1, 2, 3, 9, 10, 11, and 12 of the Pomeroy patent, and claims 2, 3, and 5 of the Gould patent.

The devices of the patents in suit, as well as that of the defendant, differ only in minor details of construction. In principle they are the same. Some time prior to the summer of 1903 Baron von Wels-bach, a celebrated Austrian chemist, discovered a metallic alloy, consisting of cerium and iron, which upon abrasion will give forth a shower of sparks capable of igniting gas. He applied for, and there were issue'd to him, patents thereon in Austria, France, and this country. The French patent was published on April 4, 1904; the Austrian on February 25, 1905; and on November 27, 1906, the United States patent was issued. The devices of each of the patents in suit were designed to utilize that metal for the purpose before mentioned. Each of them, as well as that of the defendant, consists, broadly speaking, of a contrivance to be held in the hand, made in the form of tongs, one arm of which carries Welsbach’s pyrophoric alloy, and the other a file; the arms being so arranged that by pressing the two together with the fingers of the hand the alloy is brought into frictional engagement with the file, and as it is moved along the surface thereof gives off the sparks. They are designed to be held over a gas jet, and when operated will ignite the escaping gas.

The following cuts show the devices of the patents in suit, defendant’s igniter, and that of the first Pomeroy patent:

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Safety Gas Lighter Co. v. Fischer Bros., 236 F. 955, 1916 U.S. Dist. LEXIS 1337 (D.N.J. 1916).

236 F. 955 (Safety Gas Lighter Co. v. Fischer Bros.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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