Hardinge Bros. v. Marr Oil Heat Mach. Corp.

PAGE, Circuit Judge.

The District Court (20 F.[2d] 241) held claims 1, 2, 5, and 101 of plaintiffs’ (appellees’) patent, No. 1,158,058, to King, for centrifugal oil burner, valid and infringed. The defenses were noninfringement and invalidity in view of the prior art.

*780The prior art dates back to Cook patent, No. 73,506, issued in 1868. The Klein patent, No. 473,759, issued in 1892, and Eddy, No. 540,650, issued in 1895, are also relied on. In those three patents, the main feature was a cone-shaped rotating oil distributor, on the end of a horizontal shaft, inserted into the Are box. Those…