Patent ID: 8434536
Filing Date: 2013-05-07
Classification: B29C,B29K,B29L,B31D,B32B

Abstract:
1. A heat-seal system for sealing together two juxtaposed film plies via a continuous longitudinal seal, comprising: a. a heat-seal device in the form of a replaceable cartridge, comprising b. a conveyance mechanism for conveying the film plies against said heat-seal contact surface of said heat-seal device, said conveyance mechanism being adapted to convey the film plies at varying speeds; c. a support member to which said heat-seal device is removably affixed, said support member bringing the heat-seal contact surface of said heat-seal device into sliding contact with said juxtaposed film plies as said conveyance mechanism conveys said film plies against said heat-seal contact surface, thereby sealing said film plies together in the form of a continuous longitudinal seal; d. a temperature-measuring device, at least a portion of which is encapsulated with said heat source in said thermal conductor; and e. a controller in operative communication with said heat source and with said temperature-measuring device, said controller adapted to whereby, said controller determines the temperature of said thermal conductor, and is adapted to change said temperature based on changes in the speed at which the film plies are conveyed.