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AssigneeInter Airspray Sweden Aktiebolag
InventorArne S. Dahlin
Estimating the term…
A pump spray dispenser with an inner cylindrical tube (2) in the container portion (1) and a piston mounted on the handle (6) is provided with inwardly directed projections (14) about the mouth of the cylindrical tube. During the assembly process, the container parts with tubular cylinders are slipped onto upright mandrels fixed to a conveyor belt or the like. Each mandrel bends the projections towards the interior end of the cylindrical tube and when the container portion is removed from the mandrel, the projections begin recovery towards their original shapes sufficiently slowly to enable the piston to be inserted past the projections without damaging the piston. The projections then return to a still bent position in contact with the piston stem (4) to center and retain the piston assembly.
A method of assembling a pressurized dispenser provided with a pump device for pressurizing the interior of the dispenser, said dispenser comprising a plastic container (1) with a cylindrical tube (2) integral therewith and a handle provided with a piston (5) which is mounted on a piston stem (4) and is displaceable in the cylindrical tube (2), said piston (5) having an abutment surface (16) for determining an outer end position of the piston, said method comprising:
Pressurized dispenser comprising:
Dependencies are inferred from the claim text.