A container with multi-chambers is described. Each hair coloring substance of the multi-chamber is stored in its sub-chamber. The final hair coloring solution is formed by mixing the hair coloring substances in mixing sub-chambers in liquid communication with the interior of each of the sub-chambers. An optional mixing nozzle is also used in conjunction with the mixing chamber, and the mixing nozzle may include a helical mixing tool.

A container comprising a female coupling configured to receive and establish a friction seal with a male coupling of an external device for inserting or extracting a liquid to or from the container after the friction seal is established between the female and male couplings.

A hermetically sealed enclosure for use in fabricating a polymeric dental article. Monomers are mixed within the enclosure by squeezing a first burst pouch to break a first burst seal between it and a second burst pouch and manipulating the enclosure by hand to initiate a polymerization reaction while the enclosure remains hermetically sealed. A second burst seal between the second burst pouch and a dispensing funnel chamber is broken by further squeezing which forces the mixture into the dispensing funnel chamber. The mixture is dispensed from an outlet of the dispensing funnel chamber by further squeezing after a tear-off strip closing the outlet has been torn off.

A dispenser (10) for dispensing a flowable material M has a container (12) having an outer wall (20) and membrane (14) collectively defining a first chamber (22) configured to contain the flowable material M. The membrane (14) has a thickness and a weld seam (40) wherein the weld seam (40) has a thickness less than the thickness of the membrane (14). A fracturing mechanism (16) is operably connected to the container (12). The fracturing mechanism (16) has an extending member (64) projecting from the outer wall (20) of the container (12). The extending member (64) has a projection (66) positioned proximate the membrane (14), wherein in response to deflection of the extending member (64), the projection (66) deflects the outer wall (20) proximate the membrane (14) wherein the weld seam (40) fractures creating an opening (41) through the membrane (14) configured to allow the flowable material M to pass therethrough and from the dispenser (10).

A dispenser (10) for dispensing a flowable material M has a container (12) having an outer wall (20) and membrane (14) collectively defining a first chamber (22) configured to contain the flowable material M. The membrane (14) has a thickness and a weld seam (40) wherein the weld seam (40) has a thickness less than the thickness of the membrane (14). A fracturing mechanism (16) is operably connected to the container (12). The fracturing mechanism (16) has a first extending member (64a) and a second extending member (64b). The first extending member (64a) and the second extending member (64b) are positioned on the container (12) in spaced relation, wherein the first extending member (64a) and the second extending member (64b) extend above the longitudinal axis. In response to deflection of the extending members (64a,64b) towards one another, the outer wall (20) deflects proximate the membrane (14) wherein the weld seam fractures creating an opening (41) through the membrane (14) configured to allow the flowable material M to pass therethrough and from the dispenser (10).

A dispenser (10) for dispensing a flowable material M has a container (12) having an outer wall (20) and membrane (14) collectively defining a first chamber (22) configured to contain the flowable material M. The membrane (14) has a thickness and a weld seam (40) wherein the weld seam (40) has a thickness less than the thickness of the membrane (14). A fracturing mechanism (16) is operably connected to the container (12). The fracturing mechanism (16) has an extending member (64) projecting from the outer wall (20) of the container (12). The extending member (64) has a projection (66) positioned proximate the membrane (14), wherein in response to deflection of the extending member (64), the projection (66) deflects the outer wall (20) proximate the membrane (14) wherein the weld seam (40) fractures creating an opening (41) through the membrane (14) configured to allow the flowable material M to pass therethrough and from the dispenser (10).

A mixing pouch forms a packaging product that includes a first compartment containing a supply of a liquid ingredient and a second compartment that contains a supply of a powdered ingredient with a breakable seal between the two compartments to separate the two ingredients. Rupturing the breakable seal creates a common interior cavity and allows the mixing of the two ingredients to create a mixed product. One end of the mixing pouch is formed with a dispenser through which the mixed product is dispensed for use. An apparatus, such as a positionable clamp or an adhesive strip on the exterior of the mixing pouch, can reduce the size of the common interior cavity to facilitate the dispensing of the mixed product. Preferably, the mixing pouch is a flexible plastic member having a dispensing end formed with a channel closed by a tear-away portion.

A dispenser (10) for dispensing flowable materials has a container (12) having an outer wall (20), a dividing wall (21) and a membrane (14) operably connected to define a first chamber (22), a second chamber (24) and a third chamber (16). The dividing wall (21) is connected to the membrane (14) at an interface (30). The first chamber (22) defines a first volume and is configured to contain a first flowable material (M1), and the second chamber (24) defines a second volume and is configured to contain a second flowable material (M2). The membrane (14) has a first section (34) having a first rupturable member (40) and a second section (36) having a second rupturable member (40). The first section (34) is separated from the second section (36) by the interface (30). The third chamber (16) is positioned adjacent the membrane (14) generally opposite the first chamber (22) and the second chamber (24), wherein the third chamber (16) defines a third volume and is configured to receive the first flowable material (M1) and the second flowable material (M2) upon rupture of the first rupturable member (40) and the second rupturable member (40) wherein a mixture (MX) is formed. The first volume and the second volume are collectively approximately equal to the third volume.

A dispenser (10) for dispensing a flowable material M has a container (12) having an outer wall (20) and membrane (14) collectively defining a first chamber (22) configured to contain the flowable material M. The membrane (14) has a thickness and a weld seam (40) wherein the weld seam (40) has a thickness less than the thickness of the membrane (14). A fracturing mechanism (16) is operably connected to the container (12). The fracturing mechanism (16) has an extending member (64) projecting from the outer wall (20) of the container (12). The extending member (64) has a projection (66) positioned proximate the membrane (14), wherein in response to deflection of the extending member (64), the projection (66) deflects the outer wall (20) proximate the membrane (14) wherein the weld seam (40) fractures creating an opening (41) through the membrane (14) configured to allow the flowable material M to pass therethrough and from the dispenser (10).

Provided is product dispenser that may be used for oral care products that are composed of two different ingredients that are mixed together prior to being used. The oral care product dispenser may include at least two storage chambers, a mixing chamber, a dispensing nozzle in fluidic communication with the mixing chamber and at least one seal that keeps the contents stored in the at least two storage chambers separated during storage. The mixing chamber receives and mixes contents from the at least two storage chambers during dispensing.