Long Reach Sealant / Caulking Gun

摘要

A long reach dispenser gun 10 comprising an elongate barrel chamber 11, a piston 12 movable longitudinally within the chamber and an actuator operable upon the piston. There is an adaptable or convertible drive face or plunger (55, 58 figures 6B & 6D) demountable upon the piston as a displacement head for a variety of reservoir types, such as a cartridge or foil pack. The gun may include a multiple barrel assembly with shared or respective nozzles. A nozzle may be moveable and remotely steerable. There may be an articulated or flexible barrel.