Rotary knife blade
AssigneeBettcher Industries, Inc.
InventorsJeffrey A. Whited, Robert L. Leimbach, G. Daniel Harper
Life of this patent
Estimating the term…
Abstract
A rotary knife blade comprising an annular body rotatable about a central axis, gear teeth projecting away from the body to form a ring gear, and an annular blade section projecting away from the body. The blade section comprises a first frustoconical, radially inner surface, a second frustoconical, radially outer surface, a third annular surface extending between the first and second surfaces remote from the body and an array of shallow flutes formed in the blade section. The flutes are disposed circumferentially about the blade section, extending from the projecting blade section end toward the body and opening in the first and third surfaces. The junctures of the third surface with the first surface and the flutes define a cutting edge.
Claims20
A rotary knife blade comprising:
- an annular body having a central axis about which the body is rotatable;
- an annular blade section projecting from said body, said blade section comprising;
- a first, frustoconical radially inner surface;
- a second, frustoconical radially outer surface;
- a third annular surface extending between said first and second surfaces remote from said body;
- a cutting edge defined by the juncture of said third surface with one of said first and second surfaces;
- and,
- a plurality of flutes formed in said blade section, said flutes disposed circumferentially about said blade section, extending from the projecting end of said blade section toward said body and opening in the third surface and said one of said first and second surfaces.
A rotary knife blade comprising:
- an annular body having a central axis about which the body is rotatable;
- an annular blade section projecting from said body, said blade section comprising;
- a first radially inner surface;
- a second radially outer surface;
- flutes formed in said first surface, said flutes disposed circumferentially about said blade section, extending from the projecting end of said blade section toward said body;
- and,
- a cutting edge defined along the projecting end of said blade section.
A rotary knife blade comprising:
- an annular body having a central axis about which the body is rotatable;
- an annular blade section projecting from said body, said blade section comprising;
- a first radially inner surface;
- a second radially outer surface;
- one of said first and second surfaces terminating in a cutting edge remote from said body;
- and,
- an array of shallow flutes formed in said one surface, said flutes disposed circumferentially about said blade section, extending from said edge toward said body.
A rotary knife blade comprising:
- an annular body having a central axis about which the body is rotatable;
- and,
- an annular blade section projecting generally axially from said body, said blade section comprising;
- a first radially inner face;
- a second radially outer face;
- and,
- a cutting edge defined along the projecting end of said blade section and extending about said central axis;
- said cutting edge generally sinuously shaped and comprising cutting edge segments having differing radii of curvature.
Dependencies are inferred from the claim text.