Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – With scrap material separation or removal
Patent
1997-09-02
1999-10-19
Sipos, John
Manufacturing container or tube from paper; or other manufacturi
With cutting, breaking, tearing, or abrading
With scrap material separation or removal
493199, 493203, 493204, 493373, 83100, 83 24, B31B 114, B65D 1900, B26D 706
Patent
active
059679620
ABSTRACT:
An apparatus, method, and pack of tabless, self-opening bags with flapless aperture cutouts pack. In the apparatus and method, cylindrical dies connected to a vacuum source are used to cut out plugs of holes, and the plugs are evacuated to a receptacle. Compression bars, or a relatively shallow bevel cut on the cylindrical die, are used to form area of frangible bonding in the central tab portion of the bag pack. The pack of tabless, self-opening bags with flapless aperture cutouts has no flap portions which might inadvertently detach from bag pack.
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Huang Daniel C.
Huang Frank F. J.
Day Christopher W.
Kimbell Daniel R.
Sipos John
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