CLOUGH V. MANUFACTURING CO., 106 U. S. 178 (1882)
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U.S. Supreme Court
Clough v. Manufacturing Co., 106 U.S. 178 (1882)
Clough v. Manufacturing Company
Decided November 27, 1882
106 U.S. 178
Syllabus
1. The claim of letters patent No. 105,765, granted to John F. Barker, July 28, 1870, for an "improvement in gas burners," is valid.
2. Although in its method of supplying additional gas and in its valve arrangement for regulating the supply, a gas burner made according to the description of those letters infringes both of the claims of letters patent 104,271, granted to Theodore Clough, June 14, 1870, for an "improvement in gas burners," yet as it dispenses with the interior tubular valve of Clough, and is made in two pieces instead of three, and is less expensive to make, and as, in regulating the supply, the shell alone revolves, and the flame always remains in one position, the modifications are new and useful, and therefore patentable.
The facts are stated in the opinion of the Court.