Patent ID: 8919411
Filing Date: 2014-12-30
Classification: B29C,B65B

Abstract:
1. A sealing device for sealing a packaging material using ultrasound, said sealing device including a rotating sonotrode ( 10 ) and a rotating anvil ( 12 ), wherein the anvil ( 12 ) includes a plurality of protruding sealing faces ( 24 ) each with energy directing means ( 28 ) at ends thereof, the energy directing means ( 28 ) configured to move into contact with protruding counter rotating surfaces ( 26 ) of the sonotrode ( 10 ) for sealing the packaging material, characterized in that the energy directing means ( 28 ) have a substantially grid-shaped or rhomboidal sealing profile ( 36 ), the energy directing means ( 28 ) are provided with a radius ( 29 ), the energy directing means ( 28 ) have side faces ( 44 ) that are inclined at an angle ( 40 ) in relation to the surface of the sealing profile ( 36 ), and the side faces ( 44 ) merge rounded-off into a base face ( 42 ).