Plumb v. New York, N. H. & H. R.
U.S. Circuit Court for the District of Connecticut
This was a suit in equity by Duncan O. Plumb against the New York, New Haven & Hartford Eailroad Company and Charles P. Clark, president, for infringement of a patent.
1Opinion of the Court
TOWNSEND, District Judge.
Final hearing on bill and answer raising question of validity of patent No. 348,289, granted August 31, 1886, to complainant’s assignor, Edward W. McKenna, for an air-brake attachment known as “back-up hose,” infringed by defendant. The patent is for a device to he used in connection with air brakes on railway trains. The old straight air brakes were applied by the direct pressure of air from the locomotive. In the later automatic brake system the brakes were applied by exhausting the air pressure. This device is intended to be used in connection with the automatic…
2Cases cited15 opinions
- Topliff v. TopliffSupreme Court of the United States · 1892
- Corning v. BurdenSupreme Court of the United States · 1854
- Pennsylvania Railroad v. Locomotive Engine Safety Truck Co.Supreme Court of the United States · 1884
- Dunbar v. MyersSupreme Court of the United States · 1876
- Slawson v. Grand Street RailroadSupreme Court of the United States · 1883
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