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US 6,261,215 B1Granted
Rectangular thin film pack
OwnerRodney Haydn Imerinventor
Life of this patent
Estimating the term…
Abstract
A pack comprises a horizontal base and vertical side walls formed from a blank. The side walls are joined to each other in planes perpendicular to the base and form stiffening ribs. The side walls are seamlessly joined to the base and the base is seamless. The pack is produced by folding the blank and joining the side walls.
Claims9
A method for producing a pack, comprising the steps of:
- providing two rectangular strips of material, each strip having a thickness of from 20 to about 200 microns,
- joining the strips at intermediate portions thereof to form a cross, wherein the arms of the cross form four vertical side walls extending from a flat horizontal base demarcating an interior space, and
- joining the side walls together at vertical corners of the pack and in planes perpendicular to the base to seal the interior space at the side walls and to form vertical stiffening ribs extending along the length of the pack and outwardly of the interior space.
Dependencies are inferred from the claim text.