Legal Opinion

Westinghouse Electric & Mfg. Co. v. Union Carbide Co.

Court of Appeals for the Second Circuit

Decided May 29, 1902No. Nos. 135, 136PublishedCited by 12 opinions

Appeals from the Circuit Court of the United States for the Western District of New York. In Equity. Suits for infringement of letters patent No. 366,362, issued July 12, 1887, to. George Westinghouse, Jr., and No 508,654, issued to Elihu Thomson November 14, 1893, both for cooling transformers. On appeals from decrees for complainants.

1Opinion of the Court

TOWNSEND, Circuit Judge.

The specification of the Westinghouse patent in suit states its subject-matter as follows:

“The invention relates to the construction of a class of apparatus employed for transforming alternating or intermittent electric currents of any *496required character into currents differing therefrom in certain characteristics. Such apparatus are usually termed ‘induction coils’ or ‘converters.’ ”

This apparatus comprises a core of soft iron wound with two coils of insulated copper wire,—the one a primary coil, which receives and transmits the magnetic current; the other, a…

2Cases cited2 opinions

Brown v. PiperSupreme Court of the United States · 1875
Solvay Process Co. v. Michigan Alkali Co.Court of Appeals for the Sixth Circuit · 1898

3Cited by12 opinions

Baker v. F. A. Duncombe Mfg. Co.Court of Appeals for the Eighth Circuit · 1906
Westinghouse Electric & Mfg. Co. v. Wagner Electric & Mfg. Co.Court of Appeals for the Eighth Circuit · 1909
Westinghouse Electric & Mfg. Co. v. Wagner Electric Mfg. Co.U.S. Circuit Court for the District of Eastern Missouri · 1904
Westinghouse Electric & Mfg. Co. v. Wagner Electric Mfg. Co.Court of Appeals for the Eighth Circuit · 1916
Westinghouse Electric & Mfg. Co. v. American Transformer Co.U.S. Circuit Court for the District of New Jersey · 1904

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