Single-dose double-cup package and method
    62.
    发明授权
    Single-dose double-cup package and method 失效
    单剂双杯包装及方法

    公开(公告)号:US5947278A

    公开(公告)日:1999-09-07

    申请号:US972400

    申请日:1997-11-18

    摘要: A thermoformed dual-compartment flexible package and method for storing and dispensing the components of a polymerizable system such as the base and catalyst portions of an addition cured dental impression material. Mutually reactive constituents are isolated during storage. A first embodiment of the package includes two thermoplastic cups each having an open mouth circumscribed by an annular groove, separated by a slotted aperture. The package further includes a thermoformed flexible closure having a central projection between two annular projections. Two seals are formed by engaging the annular projections within the grooves. A second embodiment includes two thermoplastic cups separated by a slotted aperture, with each cup having an open mouth from whose rim depends an outwardly canted wall terminating at a recessed lip. The package further includes a thermoformed flexible closure having a central projection between two annular, concavely arcuate projections each having an outwardly flared rim terminating in a beveled edge. Two seals are formed by pressing each arcuate projection into a cup rim so that its flared rim contacts the canted wall and the edge contacts the lip.

    摘要翻译: 一种热成型双室柔性包装和方法,用于储存和分配可聚合系统的组分,例如加成固化的牙印模材料的基底和催化剂部分。 在储存期间隔离相互反应的成分。 包装的第一实施例包括两个热塑性杯,每个热塑性杯各自具有由开槽孔隔开的环形槽限定的开口。 该包装还包括一个热成型的柔性封闭件,其具有在两个环形凸起之间的中心突起。 通过使沟槽内的环形突起接合而形成两个密封件。 第二实施例包括由开槽孔隔开的两个热塑性杯,每个杯具有一个开口,其边缘由一个向外倾斜的壁终止于凹口。 该包装还包括热成型的柔性封闭件,其具有在两个环形的凹形弓形突起之间的中心突出部,每个凸出部分具有终止于倾斜边缘的向外扩张的边缘。 通过将每个弓形突起压入杯形边缘来形成两个密封件,使得其扩张的边缘接触倾斜的壁并且边缘接触唇缘。