Locomotive Stoker Co. v. Mechanical Const. Co.
Court of Appeals for the Third Circuit
Appeal from the District Court of the United States for the Western District of Pennsylvania; W. H. S. Thomson, Judge. Suit by the Mechanical Construction Company against the Locomotive Stoker Company. Decree for plaintiff (274 Fed. 411), and defendant appeals.
1Opinion of the Court
LYNCH, District Judge.
The bill of the Mechanical Construction Company alleged infringement on the part of the Locomotive Stoker Company of its Hanna patent, No. 979,849, relating to an improvement in automatic stokers for feeding fuel within the firebox, and having to do only with the distribution of fuel after it has reached the distributor. The Stoker Company’s answer attacked the validity of the patent, denied infringement, and by way of counterclaim alleged that the Construction Company had infringed its Street patent, No. 1,130,443, which relates to a mechanical stoker for bringing- fuel…
2Cases cited1 opinion
- Mechanical Const. Co. v. Locomotive Stoker Co.District Court, W.D. Pennsylvania · 1921
3Cited by3 opinions
- Elvin Mechanical Stoker Co. v. Locomotive Stoker Co.Court of Appeals for the Third Circuit · 1923
- Locomotive Stoker Co. v. Elvin Mechanical Stoker Co.District Court, D. Delaware · 1922
- Locomotive Stoker Co. v. Hanna Stoker Co.Court of Appeals for the Sixth Circuit · 1927