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US 6,805,486 B2Granted
Closure system
AssigneeYKK Corporation of America
InventorsDavid D. Smith, Nobuo Fujisawa, Jerry E. Buchanan
Life of this patent
Estimating the term…
Abstract
A sheet material which may be used for a closure system adapted to receive surface fasteners. The sheet material may be used for the manufacture of containers, such as bags and provides a primary form of closure as well as a secondary form of closure which allows for tamper proofing an packaged product prior to its initial opening followed by a one or two part secondary closure system.
Claims8
A container, comprising:
- first and second opposing connected walls defining an opening for a container, the interior of said walls including a heat bondable material;
- said first wall defining at least one opening adapted to receive a surface fastener at or substantially proximal to the upper edge of said container;
- said second wall defining at least one opening adapted to receive a surface fastener substantially below said upper edge;
- at least two surface fasteners having a fastening surface surrounded by a heat bondable material;
- said at least two surface fasteners bonded to said heat bondable interior walls such that the fastening surfaces fasten when the upper walls of the container are joined and folded twice.
2 more elements
A closure system, comprising:
- at least two connected walls defining an opening, said walls having least one face, wherein at least two of said walls each define at least one opening adapted to receive a surface fastener, a surface fasteners having at least one fastening surface which is smaller than said surface fastener, said at least one surface fastener bonded to the at least one face of at least two walls such that the at least one fastening surface may fasten to at least one other complementary fastening surface on a second wall;
- wherein the walls include a polymeric material, a woven material, a non-woven material, a laminate or combinations thereof;
- wherein at least one wall has one face including polyester and a second face including polyethylene;
- and
- wherein said at least one surface fastener includes at least one layer of polyethylene fastener bonded to said polyethylene face.
2 more elements
A sheet material including a surface fastener, comprising:
- a sheet material having at least one face defining at least one opening;
- a surface fastener having at least one fastening surface which is smaller than said surface fastener;
- wherein said at least one opening is adapted to receive the surface fastener, the surface fastener is bonded to the at least one face such that the fastening surface may fasten to another complementary fastening surface;
- wherein the sheet material includes a polymeric material, a woven material, a non-woven material, a laminate or combinations thereof;
- and
- wherein said surface fastener includes a layer of polyethylene and at least one face of said sheet material includes a layer of polyethylene, thereby allowing the surface fastener and the sheet material to bond at a polyethylene to polyethylene interface.
3 more elements
Dependencies are inferred from the claim text.