US 11,654,589 B2
Power operated rotary knife with notched rotary knife blade and trim guide
Joel L. Hall, North Ridgeville, OH (US); Terrence A. Pagano, Scottsdale, AZ (US); and Kevin V. Stump, Wellington, OH (US)
Assigned to Bettcher Industries, Inc., Birmingham, OH (US)
Filed by Bettcher Industries, Inc, Birmingham, OH (US)
Filed on Mar. 3, 2020, as Appl. No. 16/808,020.
Application 16/808,020 is a continuation of application No. 15/628,637, filed on Jun. 20, 2017, granted, now 10,583,577.
Application 15/628,637 is a continuation in part of application No. 15/216,120, filed on Jul. 21, 2016, granted, now 10,343,296.
Claims priority of provisional application 62/196,973, filed on Jul. 25, 2015.
Prior Publication US 2020/0198164 A1, Jun. 25, 2020
Int. Cl. B26B 25/00 (2006.01); B26B 29/06 (2006.01); B26D 7/18 (2006.01)
CPC B26B 25/002 (2013.01) [B26B 29/06 (2013.01); B26D 7/1863 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An annular rotary knife blade for a power operated rotary knife, the annular rotary knife blade comprising:
an annular body and a blade section, the annular body including a bearing surface for rotational support of the rotary knife blade and the annular body including a driven gear for rotationally driving the rotary knife blade, the blade section including a blade section wall extending inwardly from the annular body, a radially inner portion of the blade section wall including a plurality of circumferentially spaced apart notches extending into the blade section wall, each of the plurality of notches including a peripheral wall surrounding a central open portion, the peripheral wall including a leading portion, a central portion and a hook-shaped trailing portion terminating at a termination point, the termination point at an end of the peripheral wall that is opposite the leading portion, the leading portion and the hook-shaped trailing portion being circumferentially spaced apart by the central portion, the hook-shaped trailing portion including a cutting portion and at least a portion of the hook-shaped trailing portion extending circumferentially beyond the termination point of the hook-shaped trailing portion in a circumferential direction away from the leading portion.