Rotary knife blade
AssigneeBettcher Industries, Inc.
InventorsRobert Baris, Jeffrey Whited
Life of this patent
Estimating the term…
Abstract
A rotary knife having a blade with an annular body rotatable about a central axis and an annular blade section projecting away from the body. The blade section comprises a first radially inner surface, a second radially outer surface and, a cutting edge defined along the projecting end of the blade section and extending about the central axis. The cutting edge defines a sinuous line extending about the central axis forming first curved segments having radii of curvature centered radially inwardly from the edge, second curved segments interposed between adjacent first segments and having radii of curvature centered radially outwardly from the edge, and a blade edge curvature inflection location between each adjacent first and second segments.
Claims8
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;
- and,
- a cutting edge defined along the projecting end of said blade section;
- said cutting edge defining a sinuous line extending about said central axis and defining;
- first continuously curved segments having radii of curvature centered radially inwardly from said edge, said first segments defining radially outer crests disposed remote from said central axis;
- and,
- second continuously curved segments, each interposed between adjacent first segments, and having radii of curvature centered radially outwardly from said edge, said second segments defining radially inner crests spaced radially inwardly from the radially outer crests and radially outwardly from the central axis.
Dependencies are inferred from the claim text.