Continuous heat sealer for sacks and bags in thermoplastic material
OwnerRodric H. Normaninventor
Life of this patent
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Abstract
An apparatus for heat sealing of plastic bags having a main assembly for sealing, which includes drive and control means and a removeable heat sealing head having confronting heat transfer means between and in contact with which the bags pass, such that confronting side walls thereof are heat sealed, the heat sealing head constituting a sub-assembly provided with its own drive means and adapted to be received in said main assembly through a single drive means.
Claims12
An apparatus for heat sealing together confronting side walls of thermoplastic bags as the bags pass through the apparatus, said apparatus comprising a main assembly including drive and control means for the apparatus, and a heat sealing head having confronting heat transfer means between and in contact with which the bags pass such that confronting sidewalls thereof are heat sealed together, said heat sealing head constituting a sub-assembly which is provided with its own drive means and which is removably fitable to said main-assembly with a single drive connection between the drive means of the main and sub-assemblies to allow replacement of the heat sealing head sub-assembly by another said heat sealing head sub-assembly.
Dependencies are inferred from the claim text.