Patent ID: 9650164
Date: 2017-05-16
CPC Classifications: B29C,B29L,B65B

Claim:
1. A sealing device for a packaging machine, said sealing device comprising: at least a first heat sealing tool for producing a first heat seal disposed circumferentially around a product by separably coupling a lower web and atop web to form a hermetically sealed trough in a package, and a second heat sealing tool for producing a second heat seal on said package by inseparably uniting the lower web and the top web, wherein said second seal is positioned on said package to allow said top web and said lower web to remain united during and after said top web is pulled off said lower web at said first seal to open said hennetically sealed trough of said package; a first actuator for moving said first sealing tool and applying a first sealing force of said first sealing tool; a second actuator for moving said first sealing tool and applying a second sealing force of said second sealing tool; wherein the first and the second sealing forces can be adjusted individually and independently; wherein said first sealing tool and said second sealing tool are disposed on a single sealing device; and wherein said second sealing tool is disposed outside a perimeter defined by the first sealing tool.