Contoured cutting tool
OwnerEdward A. Zuzeloinventor
Life of this patent
Estimating the term…
Abstract
A contoured cutting element for cutting a contoured groove, i.e. other than square or rectangular, in a substrate of plastic, metal, concrete, asphalt, macadam, stone or the like has a cutting surface whose length, in the direction of cutting of the element is directly proportional to the amount of material that portion of the cutting surface must remove to provide uniform wear on the cutting surface over long periods of usage.
Claims12
A contoured cutting element adapted to be secured to a rotatable cutting wheel for cutting a substrate:
- said cutting element having a contoured cutting surface with a central longitudinal axis and a longitudinal dimension in the direction of rotation of the cutting wheel and a transverse dimension, said cutting surface adapted to engage and cut said substrate to contour the surface of the substrate with the amount of material cut from the substrate varying transversely of said cutting element;
- and said cutting surface decreasing in length longitudinally of said cutting element from the central longitudinal axis thereof in direct proportion to the amount of substrate being cut by that portion of said cutting element in order to provide uniform wear to said cutting element and maintain the contour of said cutting element.
A cutting wheel adapted to be mounted on a rotatable shaft for cutting a substrate comprising:
- a central circular disc;
- a series of similar contoured cutting elements mounted on the periphery of said disc;
- each said cutting element having a contoured cutting surface with a central longitudinal axis and a longitudinal dimension in the direction of rotation of the cutting wheel and a transverse dimension, said cutting surface adapted to engage and cut said substrate to contour the surface of the substrate with the amount of material cut from the substrate varying transversely of said cutting element;
- said said cutting surface decreasing in length longitudinally of said cutting element from the central longitudinal axis thereof in direct proportion to the amount of substrate being cut by that portion of said cutting element in order to provide uniform wear to said cutting element and maintain the contour of said cutting element.
A contoured cutting element adapted to be secured to a rotatable cutting wheel for cutting a substrate comprising:
- a contoured cutting surface with a longitudinal dimension in the direction of rotation of the cutting wheel and a transverse dimension;
- said cutting surface being adapted to engage and cut said substrate to contour the surface of said substrate with the amount of material cut from said substrate varying transversely of said cutting element;
- and said cutting surface is substantially convex in the direction transverse of said cutting element, wherein said cutting surface varies in length longitudinally of said cutting element in direct proportion to the amount of substrate being cut by that portion of said cutting element in order to provide uniform wear to said cutting element and maintain the convex contour of said cutting element.
A contoured cutting element adapted to be secured to a rotatable cutting wheel for cutting a substrate comprising:
- a contoured cutting surface with a longitudinal dimension in the direction of rotation of the cutting wheel and a transverse dimension;
- said cutting surface being adapted to engage and cut said substrate to contour the surface of said substrate with the amount of material cut from said substrate varying transversely of said cutting element;
- and said cutting surface is substantially convex in the direction transverse of said cutting element;
- wherein the convex cutting shape is angular with two flat surfaces joining at an apex;
- and
- wherein said cutting surface varies in length longitudinally of said cutting element in direct proportion to the amount of substrate being cut by that portion of said cutting element in order to provide uniform wear to said cutting element and maintain the convex contour of said cutting element.
Dependencies are inferred from the claim text.