Legal Opinion

Harder v. United States Piling Co.

Court of Appeals for the Seventh Circuit

Decided January 7, 1908No. 1,360PublishedCited by 5 opinions

Appeal from the Circuit Court of the United States for the Eastern Division of the Northern District of Illinois. For opinion below, see 149 Fed. 434. Appellants’ bill on account of alleged infringement of patent No. 771,426, issued to Harder on October 4,1904, for metal sheet-piling was dismissed for want of equity.

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Appeal from the Circuit Court of the United States for the Eastern Division of the Northern District of Illinois. For opinion below, see 149 Fed. 434. Appellants’ bill on account of alleged infringement of patent No. 771,426, issued to Harder on October 4,1904, for metal sheet-piling was dismissed for want of equity. The claims of the patent, with explanatory parts of the drawings and specifications, are as follows: “This invention relates to improvements in metal sheet-piling for use m the construction of sea-walls, levees, docks, coffer-dams, caissons, bridge-pier foundations, sheeting for…

1Opinion of the CourtBaker, Circuit Judge

(after stating the facts as above). In Harder’s statement the only inventional idea was to provide a locking means that should be an integral part of the beams instead of a locking means that was mechanically secured to the beams. He carried out the idea by making the “inturned angle-hook extension” that had theretofore been mechanically secured to one of the flanges of the ordinary I-beam, integral with the flange. He pi-escribed that the engaging flange and the flanged recess should be of corresponding shape so as to form a comparatively tight joint, and also be loose enough to permit the…

2Cases cited3 opinions

  1. Ball & Socket Fastener Co. v. KraetzerSupreme Court of the United States · 1893
  2. Indiana Novelty Mfg. Co. v. Crocker Chair Co.Court of Appeals for the Seventh Circuit · 1900
  3. B. F. Avery & Sons v. J. I. Case Plow WorksCourt of Appeals for the Seventh Circuit · 1906

3Cited by5 opinions

  1. Diamond Patent Co. v. S. E. Carr Co.Court of Appeals for the Ninth Circuit · 1914
  2. Kennicott Co. v. Holt Ice & Cold Storage Co.Court of Appeals for the Seventh Circuit · 1915
  3. Knight Soda Fountain Co. v. Walrus Mfg. Co.Court of Appeals for the Seventh Circuit · 1919
  4. Braun v. John Griffiths & Son Co.Court of Appeals for the Seventh Circuit · 1916
  5. General Electric Co. v. Allis-Chalmers Co.District Court, D. New Jersey · 1912

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