Reagent mixing and dispensing apparatus

Claim 1

Apparatus for mixing first and second materials together to form a composite such as a quick setting resin for use in bonding and the like, said apparatus comprising: first and second parallel hollow cylinders open at one set of corresponding ends, the opposite corresponding ends each having a discharge port, said first and second cylinders being adapted to have said first and second materials respectively disposed therein; a mixing and discharge chamber detachably secured to said opposite corresponding ends to receive materials flowing out of said ports, to mix same together and to discharge the mixture for use, said chamber having an elongated extension parallel to the cylinders and provided with a hollow bore through which said mixture is discharged, said extension being disposed between the cylinders and extending forwardly thereof; first and second parallel plungers, each plunger extending through the open end of the corresponding cylinder in the axial direction and being movable back and forth in said direction; means coupled to both plungers to move same back and forth in synchronism whereby forward movement of said plungers into said cylinders forces said materials to flow out of said ports into said chamber for mixture and discharge; and a mixer member disposed in said chamber between said ports and said extension for mixing said materials, said member being rotatable about an axis parallel to said cylinders and being restrained from movement in the axial direction, said member being coupled to said means and rotated thereby when said plungers are moved.