Abstract: A portable device for mixing two materials for discharge from a nozzle characterized by a separate container for each of the two materials with each container having means to discharge the contents of the container under pressure through a discharge tube, a mixing tube of flexible material having a discharge end and an inlet end with a mixing element received in the mixing tube and extending between the ends, a nozzle attached to the discharge end, and coupling means attached to the inlet end for connecting the discharge tubes of the containers thereto. The mixing element may take the form of a helically twisted strip member which may have projections extending from opposite edges thereof or may have one or more rows of perforation to form helical extending element spaced apart by a row of perforations and interconnected by bars extending between adjacent perforations.

Abstract: A portable epoxy gun capable of mixing two different materials to form an epoxy resin mixture and for dispensing the mixture under pressure through a nozzle characterized by a T-shape housing having an inlet and outlet ports axially aligned and an intermediate opening or port extending perpendicular thereto, conduits separately conveying the materials to the inlet port, and a mixing element attached on a rotatable shaft extending across the housing to mix the materials to form the epoxy resin mixture. Preferably, the mixing element is rotated in a clockwise direction and has left-handed threads or grooves to urge the mixed material away from the opening of the housing and to urge the mixing element tightly against a sealing washer to prevent flow of the epoxy material along the shaft.