3  EP 3 800 019 A1 4  an axis of the cutting head (12) in a rotational direction relative to the cutting head (12). The impeller (10) in- cludesone ormore paddles (16)circumferentiallyspaced along a perimeter thereof for delivering food product ra- dially outward toward the cutting head (12). The cutting head (12) includes one or more knife assemblies ranged in sets spaced around the circumference of the cutting head (12). Each knife assembly includes a knife (14) extending radially inward toward the impeller(10)in a direction opposite the rotationaldirectionofthe impeller (10) and isadapted to secure the knife (14) to the cutting edge (48). The knife (14) has a corrugated shape to pro- duce a food product slice with generally parallel cut wherein the food product slice has a periodic shape and a large-amplitude cross-section. 15 10 5 rection fromthe cuttingedge (248)ofan adjacentsurface (214)located in a trailing direction so asto form an open- ing therebetween. The opening determining a thickness of the sliced food product engaging the knife (214) while the cutting wheel (212) is rotated about a central axis to advance the cutting edge (248) in a cutting plane. The knife (214) has a corrugated shape to produce a food productslice with generallyparallelcutswherein the food productslice has a periodic shape and alarge-amplitude cross-section. [0013] A technical effect of the invention is the ability to produce a food product slice having a large amplitude cross-section with minimal through-cracking and abra- sion on the peaks of the slices. [0014] Otheraspects andadvantages ofthis invention will be better appreciated from the following detailed de- scription. [0011] According to a second aspect of the invention, an apparatus for cutting food product includes a cylindri- cal-shaped cutting head (112)mounted forrotation about a horizontally disposed central axis of rotation. The cut- ting head (112) includes a circular-shaped front opening and a circumferential wall defined in part by at least one knife assembly having an axially extending knife (114) and means forsecuring the knife (114)to the cutting head (112).The knife (114)has a corrugated shape to produce a food product slice with generally parallel cuts, wherein the food product slice has a periodic shape and a large- amplitudecross-section.The apparatus isadapted to ro- tate the cutting head (112) about the central axis of ro- tation. A stationary hollow elongate feed chute (140) is disposed through the front opening and includes an inlet opening and an outlet opening (138) for containing and consecutively feeding a supply of food products to the knife (114). The longitudinal axis of the feed chute (140) intersects the circumferential wall of the cutting head (112) approximately midway between the opposite ends of the wall and spaced rearwardly of the axis of rotation with respectto the direction ofcuttinghead (112)rotation to dispose theoutletopening(138)ofthe feed chute(140) adjacent the lowercircumferential wallportion of the cut- ting head (112) so that each food product is caused to engage the lower circumferential wall portion of the cut- ting head (112) for slicing by the knife (114) during rota- tion of the cutting head (112). 40 35 30 25 20 FIG.1 isa plan view representing a cutting apparatus known in the art. FIG.2 isa perspective view representing an impeller of a cutting apparatus known in the art. FIG. 3 is a perspective view representing a cutting head of a cutting apparatus known in the art. FIG. 4 is a top view representing paddle angles of the impeller of FIG. 2. FIG. 5 is a perspective view representing a cutting head in accordance with an aspect this invention. FIGS. 6 and 7 are side and cross-sectional views, respectively, of a quick clamping assembly in ac- cordance with an aspect of the invention. FIG. 8 is a perspective view representing a knife as- sembly in accordance with an aspect this invention. FIG. 9 is a cross-sectional view of a chip having a periodic shape and a large-amplitude cross-section in accordance with an aspect this invention. FIG. 10 is a perspective view representing a knife assembly with a relieved shoe in accordance with an aspect this invention. FIGS. 11a-e are plan views representing various knife assemblyconfigurationsin accordance with an aspect this invention. FIG.12 isa plan view representingprofiles ofknives with biased bevels in accordance with anaspectthis [0012] According to a third aspect of the invention, an apparatus for cutting food product includes a rotatable cutting wheel (212) wherein the food product advances towards the cutting wheel (212) in a feed direction. The cutting wheel (212) has a hub (242), a rim (244), and at least one knife assembly including a knife (214)  means for securing the knife (214) to the cutting wheel (212). The knife (214) has a leading edge facing a direc- tion of rotation of the cutting wheel (212) and extending generally radially from the hub (242) to the rim (244). A cutting edge (248) on the leading edge of the knife (214) and a second edge on the trailing edge of the knife as- semblywithrespectto the direction ofcutting wheel(212) rotation form a juncture. The juncture extends substan- tially parallel to and spaced in the food product feed di- 45 50 55 3 [0015] BRIEF DESCRIPTION OF THE DRAWINGS