Packaging system
OwnerTony D. Bakerinventor
Life of this patent
Estimating the term…
Abstract
A web of packaging material includes a pair of flaps folded onto a backing sheet and laterally heat sealed at uniform positions along the web, forming pairs of bags having laterally opposed openings. The web is perforated at the heat seals to allow ease of separation of the pairs of bags from the web, while longitudinal perforations allow for the separation of the bags of each pair from each other. Releasable adhesive strips are provided on closure flaps to allow closure of the openings of the separated bags. The bags are filled by draping them over a carrier bar, passing them under a blower and filler, and subsequently separating the bag pairs from each other and sealing them.
Claims19
Packaging material, comprising:
- a web of material having lateral portions thereof onto itself, forming first and second flaps received upon a backing sheet, said first and second flaps having respective first edges connected to said backing sheet and second edges opposite each other and exposing said backing sheet therebetween;
- and
- a plurality of sealing means, each laterally traversing said web of material, said sealing means being positioned at intervals along the length thereof for sealing said first and second flaps to said backing sheet at said intervals and defining envelopes therebetween, said envelopes being formed in aligned pairs, each of said envelopes having an opening, said openings of said aligned pairs of envelopes being laterally opposed and aligned.
A web of packaging material, comprising:
- a sheet having first and second lateral edges;
- a first flap attached to said sheet at said first lateral edge;
- a second flap attached to said sheet at said second lateral edge, said first and second flaps extending toward each other over said sheet;
- and
- a plurality of seals, each seal laterally traversing said sheet and said first and second flaps, said seals positioned at spaced apart locations and securing said flaps to said sheet at such locations, defining a plurality of pockets, wherein said pockets are formed as a linear arrangement of aligned pairs, each of said pockets of each of said aligned pairs having an opening, said openings of said aligned pairs being laterally opposed.
Dependencies are inferred from the claim text.