公开(公告)号：US20230227194A1

公开(公告)日：2023-07-20

申请号：US18000528

申请日：2021-06-16

申请人： TETRA LAVAL HOLDINGS & FINANCE S.A.

发明人： Karl ISRAELSSON ,  Per KARLSSON

IPC分类号： B65B51/30 ,  B65B61/06 ,  B65B51/22 ,  B65B9/20

CPC分类号： B65B51/30 ,  B65B61/06 ,  B65B51/227 ,  B65B9/2049

摘要： An inductor for transverse sealing a packaging material tube filled with food product comprises a main body comprising first and second sealing surfaces facing the packaging material during a sealing state, a recess in the main body for receiving a knife during a cutting state, and an electric conductor arrangement, in the main body for inducing eddy currents in the packaging material during the sealing state. The first/second sealing surfaces each comprise a top section, an inner sealing section between the recess and the top section, and an outer sealing section between the top section and an outer edge of the inductor. The inner sealing section is inclined towards the recess, and the outer sealing section is inclined towards the outer edge, so that product in the tube is pushed away from a sealing band of the tube as the first/second sealing surfaces are pressed towards the sealing band.

公开(公告)号：US20170274582A1

公开(公告)日：2017-09-28

申请号：US15529340

申请日：2015-11-18

申请人： Tetra Laval Holdings & Finance S.A.

发明人： Per KARLSSON ,  Marko STAJKOVIC ,  Louis CARLIOZ ,  Håkan ANDERSSON ,  Patrik INGVARSSON

IPC分类号： B29C65/00 ,  A23L3/10 ,  B65B51/22 ,  B29C65/32

CPC分类号： B29C66/8122 ,  A23L3/10 ,  A23V2002/00 ,  B29C65/32 ,  B29C65/3656 ,  B29C65/3668 ,  B29C65/368 ,  B29C65/74 ,  B29C66/1122 ,  B29C66/232 ,  B29C66/4312 ,  B29C66/71 ,  B29C66/72321 ,  B29C66/72328 ,  B29C66/8126 ,  B29C66/81261 ,  B29C66/81419 ,  B29C66/81427 ,  B29C66/849 ,  B29K2705/02 ,  B29K2995/0008 ,  B29L2031/26 ,  B65B51/227 ,  B29K2901/00 ,  B29K2903/06 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2023/086 ,  B29K2881/04 ,  B29K2877/00 ,  A23B4/023 ,  A23B4/12

摘要： Disclosed embodiments relate to an induction sealing device for heat sealing packaging material for producing sealed packages of pourable food products. In some embodiments, the sealing device includes: an inductor device which interacts with said packaging material by means of at least one active surface; a flux-concentrating insert; and a supporting body made of heat-conducting material and housing said inductor device and said flux-concentrating insert, wherein said flux concentrating insert is made by a magnetic compound of a polymer and soft magnetic particles; and said flux concentrating insert interacts with said packaging material via at least one interactive surface.