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US 6,257,763 B1Granted
Tamper evident zipper slider
AssigneeHuntsman KCL Corporation
InventorsRobert C. Stolmeier, Ronald G. Thieman, James W. Burke, Thomas P. O'Connor
Life of this patent
Estimating the term…
Abstract
A plastic film bag includes a reclosable closure which is opened and closed by a slider. The bag includes a tamper evident sheet closing off the bag mouth. Alternatively the tamper evident means consists of a hood which encloses the slider and reclosable closure.
Claims35
A plastic film bag comprising:
- (a) a pair of side walls which are secured to one another and define a mouth of the bag;
- (b) a reclosable fastener extending along the mouth of the bag and secured to said side walls, said fastener including a pair of flexible plastic strips secured to said side walls and including reclosable interlocking rib and groove profile elements on the respective strips, one of said plastic strips having an outer face, an inner face, and a bottom edge;
- (c) a slider straddling the fastener for opening and closing the fastener, said slider including a depending separator extending between said flexible plastic strips;
- and
- (d) a sheet of plastic film closing the mouth of said bag, said sheet being capable of rupture to provide access and tamper evidence, said sheet having at least one curved region which curves from one of said outer face or said inner face of said one plastic strip around said bottom edge to the other said outer face or said inner face of said one plastic strip.
2 more elements
A plastic film bag comprising:
- a) a pair of side walls having an upper region, said pair of side walls secured to one another and defining a mouth of the bag, said upper region of said pair of side walls forming a sheet of plastic film disposed between said side walls for closing the mouth of said bag, said sheet being capable of rupture to provide access and tamper evidence;
- b) a reclosable fastener extending along the mouth of the bag and secured to said side walls, said fastener including a pair of flexible strips secured to said side walls and including reclosable interlocking rib and groove profile elements on the respective strips;
- and
- c) a slider straddling the fastener for opening and closing the fastener, said slider including a depending separator extending between said flexible plastic strips;
- wherein each of said pair of flexible plastic strips has an outer face and an inner face, and one of said pair of side walls is secured to the outer face of one of said pair of flexible plastic strips and the other of said pair of side walls is secured to the outer face of the other of said pair of flexible plastic strips.
2 more elements
A plastic film bag comprising:
- a) a pair of side walls having an upper region, said pair of side walls secured to one another and defining a mouth of the bag, said upper region of said pair of side walls forming a sheet of plastic film disposed between said side walls for closing the mouth of said bag, said sheet being capable of rupture to provide access and tamper evidence, wherein one of said pair of side walls folds over itself;
- b) a reclosable fastener extending along the mouth of the bag and secured to said side walls, said fastener including a pair of flexible strips each having an outer face and an inner face and including reclosable interlocking rib and groove profile elements on the respective strips, said folded one of said pair of side walls being secured to said outer face of one of said pair of flexible plastic strips;
- and
- c) a slider straddling the fastener for opening and closing the fastener, said slider including a depending separator extending between said flexible plastic strips.
1 more element
A plastic film bag comprising:
- a pair of side walls which are secured to one another and define a mouth of the bag;
- a reclosable fastener extending along the mouth of the bag and secured to said side walls, said fastener including a pair of flexible plastic strips secured to said side walls and including reclosable interlocking rib and groove profile elements on the respective strips;
- a slider straddling the fastener for opening and closing the fastener, said slider including a depending separator extending between said flexible plastic strips;
- and
- a sheet of plastic film secured to said reclosable fastener, said sheet closing the mouth of said bag, said sheet being capable of rupture to provide access and tamper evidence;
- wherein said sheet of plastic film is constructed and arranged to be manually removed for entry by a user of said bag into the interior of said bag and at least one of said side walls folds over itself.
3 more elements
Dependencies are inferred from the claim text.