Vulcan Corp. v. Slipper City Wood Heel Co.

ALLEN, Circuit Judge.

Appeal from a decree adjudging claims 9 to 14, inclusive, of Kinney patent No. 1,790,925, issued February 3, 1931, valid and infringed. The patent relates to a grooving machine for forming the breast grooves in Cuban wood heels for women’s shoes.1

The technical terms used in the industry are adequately defined in United Shoe Machinery Corp. v. Day Wood Heel Co., 46 F. (2d) 897 (C.C.A.6). It is sufficient to state that the object of the invention in suit was to cut the breast surface of the wood heel so that it would be both longitudinally convex and transversely concave,…