초록 ▼

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 th

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.

대표청구항 ▼

[ What is claimed is:] [1.] A flexible package for separably storing and simultaneously dispensing a first material and a second material, comprising:a first receptacle having a first open end bounded circumferentially by a first rim, the first material disposed within the receptacle;a second recept

[ What is claimed is:] [1.] A flexible package for separably storing and simultaneously dispensing a first material and a second material, comprising:a first receptacle having a first open end bounded circumferentially by a first rim, the first material disposed within the receptacle;a second receptacle having a second open end bounded circumferentially by a second rim, the second material disposed within the receptacle, the first and second receptacles connected by a flexible bridge;a flexible closure superposed on the first and second receptacles and connecting bridge; andmeans for sealingly engaging and reversibly disengaging the closure with and from the first and second open ends.