US 12,240,646 B2
Tools for forming a separation line in a pack of food cups
Dominique Cossais, Sainte Geneviève des Bois (FR); Christian Jacquemin, Monéé en Belin (FR); Jérôme Lemoine, Savi'ne L'Eveque (FR); and Hervé Delaunay, Achères (FR)
Assigned to SYNERLINK, Puiseux Pontoise (FR)
Filed by SYNERLINK, Puiseux Pontoise (FR)
Filed on Dec. 20, 2022, as Appl. No. 18/068,729.
Prior Publication US 2023/0192341 A1, Jun. 22, 2023
Int. Cl. B65B 61/00 (2006.01); B65B 51/32 (2006.01)
CPC B65B 61/007 (2013.01) [B65B 51/32 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A knife for an equipment for forming a precut in a pack of food cups, said precut facilitating separation by breaking along a separation line between two food cups, wherein the knife comprises a cutting part configured for making a precut groove or a full cut along the separation line, wherein said cutting part extends along a first longitudinal axis, such that, seen in section perpendicular to the longitudinal axis, the cutting part extends on either side a transverse axis and the cutting part comprises:
on one side of the transverse axis:
a first portion extending between a first point forming an end of the cutting portion and a second point, wherein a straight line connecting the first and second points forms a first angle with the transverse axis comprised between 20° and 40°; and
a second portion extending between the second point and a third point, wherein a straight line connecting the second and third points forms a second angle with the transverse axis comprised between 15° and 25°; and
on an other side of the transverse axis:
a third portion extending between the first point and a fourth point, wherein the fourth point coincides with the transverse axis; and
a fourth portion extending from the fourth point to a fifth point, wherein the fifth point is symmetric to the third point about the transverse axis, and wherein the straight line connecting the fourth and fifth points forms a third angle with the transverse axis comprised between 15° and 25°.