Legal Opinion
BG Corporation v. Walter Kidde & Co.
Court of Appeals for the Second Circuit
Decided July 1, 1935No. 432PublishedCited by 51 opinions
1Opinion of the Court
L. HAND, Circuit Judge.
This is an infringement suit of the usual kind, upon patent No. 1,719,848, issued on July 9, 1929, to George M. Paul-son; the invention was for a spark-plug in a gas engine. When such engines are idling, or running at low speeds, if the heat be too readily conducted off through the “sparking-point,” the point as it cools will foul, interfering with ignition. On the other hand when the engine is running fast, the point will overheat, due to the more frequent explosions; this causes premature firing — “back-firing”—unless the point can conduct away the heat quickly enough…
2Cases cited3 opinions
- Larson v. CrowtherCourt of Appeals for the Eighth Circuit · 1928
- Westmoreland Specialty Co. v. HoganCourt of Appeals for the Third Circuit · 1909
- Kennicott Co. v. Holt Ice & Cold Storage Co.Court of Appeals for the Seventh Circuit · 1915
3Cited by51 opinions
- Karl Ziegler, Plaintiff-Appellant-Cross-Appellee v. Phillips Petroleum Company, Defendant-Appellee-Cross-AppellantCourt of Appeals for the Fifth Circuit · 1973
- Ling-Temco-Vought, Inc. v. Kollsman Instrument CorporationCourt of Appeals for the Second Circuit · 1967
- Republic Industries, Inc. v. Schlage Lock CompanyCourt of Appeals for the Seventh Circuit · 1979
- The Ansul Company v. Uniroyal, Inc.Court of Appeals for the Second Circuit · 1971
- Rengo Co. Ltd. And Simon Container MacHinery Limited, in No. 80-2556 v. Molins MacHine Company, Inc., in No. 80-2557Court of Appeals for the Third Circuit · 1981
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