Abstract: A cartridge container unit having a compartment for storing a material. The compartment is adapted for separately storing one component of a formulation until ready for mixing with a second component in an assembly unit prior to use. Thus, the cartridge unit allows the user to store a material until ready for use, or to store multiple components of a formulation in separate individually sealed containers until ready for use that can be readily assembled into a single multi-compartment container. The cartridge unit includes a substantially cylindrical housing having a sealable opening at its top end and an opening at its bottom end. The bottom end may be adapted and configured to engage and seal the assembly unit. A first inwardly extending annular shoulder is provided between the sealable opening and the bottom opening, defining a flow passage along a longitudinal axis of the housing.

Abstract: A syringe assembly consists of two basic types of assembly units: a dispensing unit, and a separate, independent plunger unit. The dispensing unit and the plunger unit are assembled together coaxially to form a two-unit syringe assembly for storage or prior to use. At least the dispensing unit is a container for a material to be dispensed and, by inserting one or more extension units between the dispensing unit and the plunger unit, additional compartments may be added. Each extension unit may contain a different component of a formulation in any predetermined quantity. The syringe assembly allows the user to store one or more components of a formulation in separate individual units that can be assembled easily into a single multi-compartment syringe assembly, which can store the multiple components separately until they are ready for use, at which time the components may be mixed to form the formulation.

Abstract: A process and apparatus for preparing a multi-compartment container having two open ends and a partition wall that forms a fluid-tight seal defining two compartments each holding a separate component to be mixed with one another by the end-user prior to use. The process and apparatus for filling the two-compartment container comprises filling one compartment with material through an opening at one end of the container; sealing the opening; rotating the container; filling the other compartment with material through an opening at the other end of the container; and sealing the other opening preferably with a removable seal.

Abstract: A process and apparatus for preparing a multi-compartment container having two open ends and a partition wall that forms a fluid-tight seal defining two compartments each holding a separate component to be mixed with one another by the end-user prior to use. The process and apparatus for filling the two-compartment container comprises filling one compartment with material through an opening at one end of the container; sealing the opening; rotating the container; filling the other compartment with material through an opening at the other end of the container; and sealing the other opening preferably with a removable seal.

Abstract: A container holding two separate components which are mixed prior to use is provided. The container comprises a housing with a dispensing opening and neck portion between said opening and the bottom end of housing. The container further comprises a displaceable member disposed within the housing and having a partition wall with an edge adapted for a sealing engagement with internal walls of the neck portion, thereby defining two compartments separated by said partition wall. A displaceable member is axially displaceable between two positions along an axis extending through the neck portion. These two positions comprise a first position where the edge of the partition wall sealingly engages the internal walls of the neck portion, and a second position where the edge of the partition wall and the internal walls are disengaged permitting flow communication between the two compartments. This flow communication allows mixing of the two components to form a formulation which is then ready for use.

Abstract: A container holding two separate components, which are mixed prior to use is provided. The container comprises a housing defining a first compartment having a sealable opening and a neck portion between said first compartment and said opening. The container further comprises a displaceable member which is disposed within the housing which has a partition wall with an edge adapted for sealing engagement with the internal wall of the neck portion, thereby defining a second compartment sealed from the first compartment and being in flow communication with the opening. The displaceable member is axially displaceable between two positions along an axis extending through the neck portion. These two positions comprise a first position where the edge of the partition wall sealably engages the internal walls of the neck portion, and a second position where the edge of the partition wall and the internal walls of the neck portion are disengaged, permitting flow communication between the two compartments.

Abstract: A container for storing two components separately and then mixing them prior to use includes a housing having an opening and a neck portion, a displaceable member, and a closure member. The housing is formed with a first compartment and a second compartment intercommunicating at the neck portion. The displaceable member has a partition wall for sealing the neck portion. The displaceable member is formed such that the partition wall moves from a non-sealing position in which the first and second compartments intercommunicate to a sealing position in which the neck portion is sealed. The displaceable member also may feature at least one conduit for allowing introduction of a component through the opening into the housing. The closure member seals the at least one conduit of the displaceable member and/or the opening of the housing. The displaceable member may be moved by rotating, pushing or pulling and may be moveable by a portion exterior to the housing.