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AssigneeAptar France SAS
InventorsLaurent Decottignies, Ludovic Goudigan
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A method of manufacturing a fluid reservoir (1) for associating with a dispenser member (4), such as a pump, so as to constitute a fluid dispenser, the reservoir (1) including an inside surface (12) that is circularly cylindrical and that defines a slide cylinder in which a follower piston (2) slides in leaktight manner, the reservoir (1) including an outside surface (13) of any shape that is spaced apart from the inside surface by a wall thickness (Emin) that varies, the method comprising molding the reservoir (1) in a mold with a melt of plastics material, the method being characterized in that the inside surface (12) is formed by a non-circularly-cylindrical molding pin, so as to take account of phenomena of material shrinkage after cooling, so as to obtain an inside surface (12) that is circularly cylindrical.
A method of manufacturing a fluid reservoir (1) for associating with a dispenser member (4), such as a pump, so as to constitute a fluid dispenser, the reservoir (1) including an inside surface (12) that is circularly cylindrical and that defines a slide cylinder in which a follower piston (2) slides in leaktight manner, the reservoir (1) including an outside surface (13, 13′) of any shape that is spaced apart from the inside surface by a wall thickness (E, Emax, Emin) that varies, the method comprising molding the reservoir (1) in a mold with a melt of plastics material, the method being characterized in that the inside surface (12) is formed by a non-circularly-cylindrical molding pin (B;
A mold for manufacturing a fluid reservoir (1) for associating with a dispenser member (4), such as a pump, so as to constitute a fluid dispenser, the reservoir (1) including an inside surface (12) that defines a circularly-cylindrical slide cylinder in which a follower piston (2) slides in leaktight manner, the reservoir (1) including an outside surface (13, 13′) that is spaced apart from the inside surface by a wall thickness (E, Emax, Emin) that varies, the mold being characterized in that it includes a non-circularly-cylindrical molding pin (B;
Dependencies are inferred from the claim text.