Tube with throttle insert
AssigneeHoffmann Neopac AG
InventorsAndreas Geiger, Andreas Eggenberg
Life of this patent
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Abstract
The tube (1) includes a connector (9) with a dispensing duct (13) which connects a dispensing opening (11) to a reservoir (3). For the dosed dispensing of a liquid from the reservoir (3) through the dispensing opening (11), a throttle insert (31) is inserted into a distal section (9b) of the connector (9) and is connected in form-fitting fashion to the connector (9). The connection of the throttle insert (31) to the connector (9) is preferably realized by a radial pressing action. The throttle insert (31) is preferably of dome-like form and delimits at least one primary throttle duct (47) which forms in the dispensing duct a constriction which limits the volume flow of the liquid from the reservoir (3) to the dispensing opening (11).
Claims10
A tube (1), comprising a reservoir (3) for a fluid medium, a connector (9) with a dispensing duct (13) which connects a dispensing opening (11) to the reservoir (3), the dispensing opening (11) is arranged at a proximal section (9a) of the connector (9), and a distal section (9b) of the connector (9) is connected via a tube shoulder to a tube shell (5) which encloses the reservoir (3), a throttle insert (31) arranged in the dispensing opening (13) so as to form in the dispensing opening (13) a constriction which closes off the dispensing opening (13) aside from at least one primary throttle duct (47) in the throttle insert, the throttle insert (31) is dome-shaped and includes an outer shell surface (33) and a face-side abutment ring (39) that meet at a distal outer edge (35), and the throttle insert (31) is fastened with a form-fit in the connector (9) by the face-side abutment ring (39) which forms an undercut with a ring-shaped step (17a) on an inner wall of the connector (9).
A throttle insert (31) for use in a tube (1), comprising:
- a dome-shaped body of revolution with an outer shell surface (33) and with an abutment ring (39), the shell surface (33) extends from a distal outer edge (35) with a maximum diameter (D3a) to a proximal outer edge (37) with a relatively small outer diameter (D3b), the abutment ring (39) adjoins the distal outer edge (35) at a face side, a channel-shaped recess as a delimitation for a primary throttle duct (47) is recessed in the shell surface (33), and said channel-shaped recess extends from a mouth in the abutment ring (39) to a mouth in the shell surface (33).
Dependencies are inferred from the claim text.