Apparatus and method for producing bags and foam-in-bag cushions
AssigneeSealed Air Corporation
InventorsCharles R. Sperry, Vincent A. Piucci, Jr.
Life of this patent
Estimating the term…
Abstract
A bag forming apparatus and method that features a single drive unit for operating both a drive roller and cross-cut mechanism with the drive motor assembly being internalized within the drive roller. The bag forming apparatus and method also features a easy slide in, slide out edge sealer and vent hole former inserts that are held by, and move with, the bag width adjustable driven rollers. The edge seal inserts feature a heating element that is compressed against the film material by an internal bias in the edge sealer insert. A heating element can also be used for the vent hole inserts. The heating element can be a plug-in heating unit easily inserted and removed from the remainder of the insert.
Claims28
A bag film edge sealer, comprising:
- a main body having a capture recess formed therein which is dimensioned for frictional attachment and removal to a support component of a bag film support assembly positioned adjacent film material being fed therepast during operation, and said edge sealer having a sealing element which is positioned on said main body relative to said capture recess so as to form an edge seal which is elongated in a direction travel of film past the bag film edge sealer.
A bag film edge sealer, comprising:
- a main body having a capture recess formed therein which is dimensioned for frictional attachment and removal to a support component of a bag film support assembly positioned adjacent film material being fed therepast during operation, said edge sealer further comprising a heating unit supported by said main body along a curved support portion of a side edge of said main body.
A bag film edge sealer, comprising:
- a main body having a capture recess formed therein which is dimensioned for frictional attachment and removal to a support component of a bag film support assembly positioned adjacent film material being fed therepast during operation;
- and
- a heating unit supported by said main body, and
- wherein said main body has a thin, card-like configuration and said heating unit is positioned along a relatively short extension of an exposed peripheral side edge of said main body.
A bag film edge sealer, comprising:
- a main body having a capture recess formed therein which is dimensioned for frictional attachment and removal to a support component of a bag film support assembly positioned adjacent film material being fed therepast during operation,
- wherein said capture recess is at least partially defined by a biasing device, and
- wherein said biasing device is a lever extension of said main body having an interior edge positioned for contact with the support component and an exterior edge separated from a remaining portion of said main body.
A bag film edge sealer, comprising:
- a main body having a capture recess formed therein which is dimensioned for frictional attachment and removal to a support component of a bag film support assembly positioned adjacent film material being fed therepast during operation,
- wherein said main body has a film facing surface with a cartridge reception opening formed therein, and said film edge sealer further comprising
- a cartridge which includes a plug-in base designed for plug-in reception by the reception opening of said main body and a heating unit supported by said base.
A plastic film sheet edge sealer, comprising:
- a main body having a first contact end for contacting material to be sealed and a second end, said main body further comprising a capture recess formed therein for frictional attachment and removal to a support component of a device feeding the material to be sealed to said edge sealer, and the first end of said main body including a peripheral section and a first sealing element which is positioned along said peripheral section, and the peripheral section of said main body being formed of a material with a greater heat insulation value than material of said edge sealer positioned along said peripheral section.
Dependencies are inferred from the claim text.