Adhesive applicator assembly

An applicator for dispensing fluid material onto a substrate, comprising:

• an applicator body formed with an internal passageway having an inlet and an outlet;
• means connected to a source of fluid material and communicating with said inlet of said internal passageway for directing fluid material from the fluid source into said internal passageway;
• blade means including a first blade and a second blade each formed with a planar surface, at least one of said first and second blades being formed with a recess extending from said planar surface thereof inwardly, and at least one of said first and second blades being formed with a longitudinal inlet slot;
• clamping means for releasably mounting said first and second blades to said applicator body so that said planar surfaces thereof engage one another with said recess of one of said first and second blades forming a space therebetween defining a fluid discharge slot, and so that said longitudinal inlet slot of one of said first and second blades communicates with said outlet of said internal passageway, the fluid material flowing into said internal passageway of said applicator body being directed by said longitudinal inlet slot into said fluid discharge slot of said blade means for application onto the substrate.

An applicator for dispensing adhesive onto the two minor flaps, the inner major flap and the outer major flap of a four-sided, sift-proof carton, the two minor flaps being folded inwardly from a spread position toward the center of the carton forming exposed surfaces and the inner and outer major flaps being disposed in a spread position relative to the sides of the carton, said applicator comprising:

• an applicator body;
• first, second, third and fourth adhesive guns carried by said applicator body, said adhesive guns being connected to a common adhesive supply passageway formed in said applicator body, each of said adhesive guns communicating with a separate internal passageway formed in said applicator body having an inlet and an outlet, said adhesive body being operable to selectively direct adhesive through said separate internal passageways;
• first and second blade means each formed with an elongated fluid discharge slot;
• first clamping means for releasably mounting said first blade means to said applicator body so that said fluid discharge slot in said first blade means communicates with said outlet of said internal passageway connected to said first and second adhesive guns;
• second clamping means for releasably securing said second blade means to said applicator body so that said fluid discharge slot in said second blade means communicates with said outlet of said internal passageway connected to said third adhesive gun;
• said first and second adhesive guns dispensing a strip of adhesive onto each end of the outer major flap, said third adhesive gun dispensing a strip of adhesive onto each end of the inner major flap, and said fourth adhesive gun dispensing an elongated strip of adhesive onto the outer major flap between said strips of adhesive at each end.