A device for facilitating a chemical reaction while submerged in a liquid catalyst includes an upper member, a lower member, and a dissolvable member disposed between and ultimately enclosed by said upper and lower members such that upper and lower chambers are formed having substantially equal volumes. The upper chamber may receive a dry sodium chlorite and the lower chamber may receive a dry acid mixture. In order to keep the device submerged in the liquid catalyst, an inert ballast may also be added to the upper and/or lower chamber, such as glass shards.

A method of packaging a two component composition into a dual vial (100), wherein the dual vial (100) comprises a single continuous piece of material arranged to provide both a first vial (110) and a second vial (120), the method comprising providing a second component of the composition into a volume, of the second vial (120), surrounding the first vial (110), providing a first component of the composition into a first vial (110), wherein the first vial (110) is nested within a second vial (120), and closing the first vial (110) and the second vial (120).

A method of packaging a two component composition into a dual vial (100), wherein the dual vial (100) comprises a single continuous piece of material arranged to provide both a first vial (110) and a second vial (120), the method comprising providing a second component of the composition into a volume, of the second vial (120), surrounding the first vial (110), providing a first component of the composition into a first vial (110), wherein the first vial (110) is nested within a second vial (120), and closing the first vial (110) and the second vial (120).

A machine and a method for forming a two-compartment pouch having a lower compartment and an upper compartment The method includes the steps of drawing a film over a pair of fill tubes; sealing side edges of the film to form a sleeve; forming a bottom seal on the sleeve; pulling the sleeve downwardly; filling a bottom portion of the pouch using one of the fill tubes; forming a second seal over the filled bottom portion; filling an upper portion of the pouch using the other fill tube; and sealing the upper portion.

A machine and a method for forming a two-compartment pouch having a lower compartment and an upper compartment The method includes the steps of drawing a film over a pair of fill tubes; sealing side edges of the film to form a sleeve; forming a bottom seal on the sleeve; pulling the sleeve downwardly; filling a bottom portion of the pouch using one of the fill tubes; forming a second seal over the filled bottom portion; filling an upper portion of the pouch using the other fill tube; and sealing the upper portion.

A dual fluid cartridge assembly includes a cartridge, a flange, and a piston tube. The cartridge defines a channel and includes an flange. The flange defines a cavity that extends from a cavity opening to a cavity base. The cavity opening is positioned within the channel of the cartridge, and the cavity base is positioned external to the cartridge. The piston tube has an extended end, and is positioned at least partially within the channel. The extended end is positioned within the cavity.

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 machine and a method for forming a two-compartment pouch having a lower compartment and an upper compartment The method includes the steps of drawing a film over a pair of fill tubes; sealing side edges of the film to form a sleeve; forming a bottom seal on the sleeve; pulling the sleeve downwardly; filling a bottom portion of the pouch using one of the fill tubes; forming a second seal over the filled bottom portion; filling an upper portion of the pouch using the other fill tube; and sealing the upper portion.

A machine and a method for forming a two-compartment pouch having a lower compartment and an upper compartment The method includes the steps of drawing a film over a pair of fill tubes; sealing side edges of the film to form a sleeve; forming a bottom seal on the sleeve; pulling the sleeve downwardly; filling a bottom portion of the pouch using one of the fill tubes; forming a second seal over the filled bottom portion; filling an upper portion of the pouch using the other fill tube; and sealing the upper portion.

A package includes a chamber portion, a hollow frame adjacent to the chamber portion, and a frangible chamber closure zone between the chamber portion and the frame. A method of releasing at least one agent into a chamber portion of a package includes rupturing a frangible closure between the chamber portion and a hollow frame to release the at least one agent contained in the hollow frame into the chamber portion. A process of packaging includes providing a base web; placing a product on the base web; positioning over the product a lid web; fixing the lid web to the base web to form a chamber portion enclosing the product; fixing the lid web to the base web to form a hollow frame adjacent to the chamber portion; and including an agent in the frame.