Class 451/206 - Blade sharpener

Subclass of Class 451 - Abrading
Definition: Abrading machine especially adapted to sharpen the edge
No. of patents: 4
Last issue date: 05/22/2001

Number	Title	Issue Date
6234881	Grinding machine for forming chip-producing cutting tools Cylindrical surface regions (1) of cutting tools (2, 21), such as drills, boring tools, reamers or the like, that is, cutting tools formed with chip removal grooves or flutes or recesses (6), are ground by engaging a rotary cutting disk (3) against the ri...	05/22/2001
5027559	Sharpening unit for leather splitting machines The sharpening unit comprises two diamond grinding wheels 6,7 mounted on respective shafts 8, 9 rotatably supported by a carriage 14 movable away from and towards the cutting blade 4 of a leather splitting machine to bring the grinding wheels in contact w...	07/02/1991
4729191	Cutlery sharpening apparatus Cutlery sharpening method and apparatus for sharpening a cutlery blade edge wherein the blade edge to be sharpened is pivoted into and yieldingly moved along a blade sharpening surface when moved in one direction and pivoted out of and moved above the bla...	03/08/1988
4199901	Grinding machine Machine for grinding given objects, such as a machine for sharpening the knives of blades, constituted by a frame, a support mounted in mobile manner on said frame, means for regulating the position of the support relative to the frame, grinding wheels mo...	04/29/1980

PatentStorm