Caulking gun
AssigneeFischbach KG Kunststoff-Technik
InventorAchim Helmenstein
Life of this patent
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Abstract
The caulking gun comprises a cartridge holder (12) for accommodating a cartridge (25). For pressing out the substance contained in the cartridge (25), use is made of a piston (30) which is advanced by a pressure disk (16). The pressure disk (16) can be radially expanded under the influence of the advancement force and thus will press by a spreading edge (49) against the side wall (31) of the piston (30). In this manner, the piston in the region of its side wall (31) is tightly pressed against the cartridge wall. Leakage of substance past the piston (30) is prevented.
Claims14
A caulking gun comprising a packing holder having a longitudinal axis and being configured to accommodate a substantially cylindrical packing, said packing including an axially displaceable packing bottom, and said caulking gun further comprising a pressure disk,
- wherein
- said pressure disk is configured to radially expand under the effect of an advancement force acting in the direction of said longitudinal axis.
Dependencies are inferred from the claim text.