Other

Dupont Canada Inc.

Du Pont of Canada Limited

David C Riley

Trevor R Bridle

Christopher S Godfrey

An assembly for heat sealing thermoplastic film, having a first jaw (11) and (optionally) a second jaw (not shown), an electrical impulse heat sealing element (12) mounted on the first jaw (11), electrical terminals (17) connected to the element (12), and at least one electrically and thermally insulating film or tape (14) between the first jaw (11) and the heat sealing element (12). At least one of the jaws is capable of transverse motion and is adapted to collapse a tubular film made from the thermoplastic film and passing between the jaws. The improved heat sealing assembly has a first jaw (11) which has a thermally insulting material (16) embedded therein along a length about equal to the width of the flattened film and having a width at least as great as the width of the sealing element.

Sealing element for packaging machines

Pouch tester

An apparatus for stringing up a rotating package holder on a ring twister with a yarn being fed to a waste jet. A rotatable pulley with a yarn guide attached is used to intercept the yarn and move it into engagement with a cutter attached to the waste jet and a yarn snagging means adjacent the package holder. The waste jet-cutter combination is also designed to cut down a full package at the completion of a winding cycle.

Growing community of inventors

Kingston, Canada

David C Riley