US 12,168,553 B2
Opening device for a sealed package and a sealed package provided with an opening device
Angelo Sorbara, Rubiera (IT); Rocco De Paola, Modena (IT); Franco Cani, Asti (IT); and Tiziano Viani, Bibbiano (IT)
Assigned to TETRA LAVAL HOLDINGS & FINANCE S.A., Pully (CH)
Appl. No. 17/919,318
Filed by TETRA LAVAL HOLDINGS & FINANCE S.A., Pully (CH)
PCT Filed Apr. 19, 2021, PCT No. PCT/EP2021/060107
§ 371(c)(1), (2) Date Oct. 17, 2022,
PCT Pub. No. WO2021/213987, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 20171297 (EP), filed on Apr. 24, 2020.
Prior Publication US 2023/0150719 A1, May 18, 2023
Int. Cl. B65D 5/74 (2006.01)
CPC B65D 5/748 (2013.01) 13 Claims
OG exemplary drawing
 
1. An opening device for a sealed package containing a pourable product, said opening device defining an axis and comprising:
a frame configured to be fitted in use about a pierceable portion of said package and defining a pour opening for the pourable product, which is coaxial with said axis;
a cap which is coaxially fitted in use onto said frame to close said pour opening;
a tubular cutter engaging said pour opening coaxially with said axis and movable in use with respect to said frame to cut said pierceable portion; and
cutting means which protrude from one axial end of said tubular cutter and which cooperate, in use, with said pierceable portion to unseal said package;
said cutting means comprising at least one tooth having:
a first cutting face and a second cutting face, which extend transversally to said axis and converge towards a free end of said tooth;
at least one third cutting face, which is circumferentially interposed between said first cutting face and said second cutting face and which extends transversally to the first cutting face and the second cutting face;
a first edge, which is arranged between said third cutting face and said first cutting face; and
a second edge, which is arranged between said third cutting face and said second cutting face.