Special receptacle or package – For ampule – capsule – pellet – or granule – Structure for 'press-out' of content unit
Reexamination Certificate
1997-03-28
2001-06-12
Sewell, Paul T. (Department: 3728)
Special receptacle or package
For ampule, capsule, pellet, or granule
Structure for 'press-out' of content unit
C206S534100, C206S539000, C206S469000, C220S643000
Reexamination Certificate
active
06244442
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a package containing articles, such as tablets, and capable of being safely used, a method of manufacturing the package, and a packet of the package.
BACKGROUND ART
A conventional tablet package has a base sheet provided with a plurality of blisters and flanges extending around the blisters, and contains tablets in the blisters. Tablets are put in the blisters and the blisters are sealed by attaching a covering sheet by heat-sealing to the flanges of the base sheet.
Tablets are put in the blisters formed in the base sheet, and then the covering sheet is bonded to the flanges of the blisters formed in the base sheet by heat-sealing to obtain a package (PTP package). The base sheet and the covering sheet of the package are perforated to divide the package into a plurality of unit blister packages each having the blister containing the tablet and covered with a section of the covering sheet. The package can be torn along the perforations to separate each unit blister package from the package.
The base sheet is made of polyvinyl chloride (PVC) or the like and is relatively thick to hold the tablets securely, and the covering sheet is relatively thin as compared with the base sheet.
The unit blister package is separated from the package by tearing the base sheet and the covering sheet along the perforations, and then the section of the covering sheet is torn off to take out the tablet from the blister.
Incidentally, it sometimes occurs that a user swallows the unit blister package containing the tablet without taking out the tablet from the blister. If the unit blister package is swallowed, the edges of the flange made of the relatively thick base sheet may possibly injure the internal organs of the user and bring about very dangerous circumstances.
DISCLOSURE OF THE INVENTION
The present invention has been made in view of such a problem and it is therefore an object of the present invention to provide a package having unit blister packages which will not injure the internal organs even if the same is swallowed by mistake, a method of manufacturing the package, and a packet of the package.
According to a first aspect of the present invention, a package comprises a plurality of blisters each having an embossed hollow with an open end, for containing an article, and a flange extending around the open end, and a covering sheet bonded to the flanges. The blisters are separate from each other, and the flanges of the separate blisters are bonded to the covering sheet.
According to a second aspect of the present invention, a package capable of being rolled comprises a soft blister having a plurality of embossed hollows with open ends, for containing an article, and flanges extending around the open upper ends, and a soft covering sheet bonded to the flanges of the soft blister. Rings each having an opening corresponding to the open end of the blister are mounted on the soft blisters or the soft covering sheet.
According to a third aspect of the present invention, a package capable of being rolled comprises a soft blister having a plurality of embossed hollows with open ends, for containing articles and flanges extending around the open end, and a soft covering sheet bonded to the flanges of the soft blister. A reinforcing paper sheet having through holes corresponding to the open ends of the blister is attached to the soft blister or the soft covering sheet.
According to a fourth aspect of the present invention, a package capable of being wound in a roll comprises a plurality of soft blisters each having an embossed hollow with an open end, for containing an article, and a flange extending around the open end of the embossed hollow, and a soft covering sheet bonded to the flanges of the soft blisters. A ring having an opening corresponding to the open end of the embossed hollow is mounted to the soft blisters or the soft covering sheet.
According to a fifth aspect of the present invention, a package manufacturing method comprises the steps of embossing a blister forming sheet between a male die and a female die to form an embossed sheet having a plurality of embossed hollows, cutting the embossed sheet held on a lower die having cavities for receiving the embossed hollows to form blisters each having the embossed hollow and a flange extending around the embossed hollow, and winding up a scrap produced by cutting out the blisters from the embossed sheet, placing articles into the embossed hollows of the blisters held on the lower die respectively, and bonding a covering sheet to the flanges of the blisters held on the lower die.
According to a sixth aspect of the present invention, a packet comprises, a package capable of being wound in a roll comprising a plurality of soft blisters each having an embossed hollow with an open end, for containing an article, and a flange extending around the open end of the embossed hollow, a soft covering sheet bonded to the flanges of the blisters, and a ring having an opening corresponding to the open end of the blister and mounted on the soft blisters or the soft covering sheet; and a container containing the rolled package.
The present invention provides a safe package from which packaged articles can easily be taken out, a method of manufacturing the package, and a packet of the package.
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Hayashi Masaho
Inoue Isao
Oguchi Kiyoshi
Saiki Atushi
Dai Nippon Printing Co. Ltd.
Luong Shian
Parkhurst & Wendel L.L.P.
Sewell Paul T.
LandOfFree
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