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

LIND LEY, District Judge.

Plaintiffs, owner and licensee, respectively, of patent to King, No. 1,158,058, issued October 26, 1925, charge defendant Hardinge Bros., Inc., with infringement, and pray for an injunction and an accounting. The answer asserts invalidity and noninfringement. Plaintiffs rely upon claims 1, 2, 5, and 10 of King, which arc set forth in the margin.1

*242King describes an oil burner, consisting of an open cup centrifugal atomizer fixed upon a hollow driving shaft arranged vertically. The sides of the cup slope slightly outwardly from the bottom to the top and culminate in an…