System and apparatus for foam dispensing with adjustable orifice flow regulating device and method of using same

A foam dispensing apparatus for mixing a plurality of foam components used in the formation of an expanding foam and dispensing the mixed foam components, comprising:

• a body assembly;
• a cartridge assembly mounted on the body assembly, the cartridge assembly including a mix chamber;
• means for supplying at least a first and a second foam component to the mix chamber;
• and
• a first valve operably coupled to the cartridge assembly, the first valve operable to adjust a flow rate of the first foam component into the mix chamber.

A dispensing system for mixing and dispensing an expanding foam, comprising:

• a first vessel containing a first foam component;
• a second vessel containing a second foam component;
• a dispensing apparatus having a cartridge assembly including a mix chamber with first and second fluid passageways;
• a first hose connecting the first vessel to the first fluid passageway, the first fluid passageway having a flow area;
• a second hose connecting the second vessel to the second fluid passageway, the second fluid passageway having a flow area;
• a first variable orifice device disposed on the cartridge assembly, the first variable orifice device operable to vary the flow area of the first fluid passageway;
• and
• a second variable orifice device disposed on the cartridge assembly, the second variable orifice device operable to vary the flow area of the second fluid passageway.