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US 4,114,322 AGranted
Abrasive member
OwnerHarold Jack Greenspaninventor
Life of this patent
Estimating the term…
Abstract
An abrasive member providing a working surface characterized by having a multiplicity of upstanding angularly extending ridges. Particles of an abrasive material, such as diamond, are affixed to the ridges in a manner so that as the tops of the ridges wear down, fresh particles of the abrasive material will become reembedded therein, thereby continually presenting a fresh cutting surface.
Claims8
An abrasive member comprising:
- (a) a rotatable wheel-shaped base member having a rim and a hub, said member being adapted to rotate about a transversely extending axis;
- (b) a wearable working surface provided on said rim, said working surface comprising a multiplicity of ridges extending thereacross at an acute angle of about 30.degree. with respect to a line parallel to the axis of rotation of said base member;
- said ridges having sloping side walls terminating in a concave upper surface, and;
- (c) a multiplicity of diamond particles bonded to said side walls and upper surfaces of said ridges so that at least portions thereof extend outwardly therefrom.
1 more element
An abrasive member comprising:
- (a) a base member having a wearable working surface provided with a multiplicity of upstanding protuberances each having a polygonal base the sides of which form the bases of foreshortened triangular surfaces meeting at a common concave shaped vertex;
- and
- (b) a multiplicity of abrasive particles fixedly postioned relative to said working surface so that portions thereof extend outwardly from said triangular surfaces of said protuberances.
A rotatable abrasive member for use in grinding, cutting and polishing the face of a work piece, by advancing the member relative to the face thereof, comprising:
- (a) a rigid base member having a wearable working surface formed of a metal, said working surface being provided with a plurality of upstanding ridges each of said ridges extending at an angle with respect to a line parallel to the direction of advance of the member relative to the face of the work piece and each of said ridges having sloping side walls and a concave top surface;
- and
- (b) a multiplicity of particles of an abrasive material partially embedded in said working surface in a manner so that at least portions thereof extend outwardly from said side walls and said top surfaces of said ridges and so that as said working surface wears said particles will loosen.
Dependencies are inferred from the claim text.