Container with neck and pre-formed sealing insert
AssigneeKocher-Plastik Maschinenbau GmbH
InventorsJohannes Geser, Michael Spallek, Alexander Hammer, Alexander Beier
Life of this patent
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Abstract
A container, in particular a plastic ampoule produced using a blow molding process, and filled and closed in the production mold, has a sleeve-shaped neck part (4) connected to a container body (2) as an axial extension. The neck part forms a seat (6) for a preformed insert (8) extending along the axis (12) of the neck part (4), and is formed in the production mold, on a peripheral region (14) of the insert (8). At least one sealing element (42; 68) is provided on the insert (8). The sealing element forms a seal in a sealing region surrounding the axis (12), in combination with a contact surface (38) formed on the seat (6) of the neck part (4).
Claims19
A container producible using a blow molding system and Tillable and closable in a production mold of the blow molding system, the container comprising:
- container body with a hollow interior and a longitudinal axis;
- a sleeve-shaped neck part being connected to said container body as an axial extension along said longitudinal axis of said container body and having a seat therein with a contact surface on said seat, said seat being spaced axially along said longitudinal axis from an open end of said neck part;
- and
- a pre-formed insert extending along said longitudinal axis and having a peripheral region and a sealing element thereon, said sealing element forming a seal in a sealing region surrounding said longitudinal axis and with said contact surface, said sealing element being an edge of a ring on said insert, said edge facing said contact surface, said sealing element being melted by thermal input forming a welded, solid, fluid impermeable barrier to other adjacent plastic material of said contact surface, said ring being an axially protruding rib, said sealing element being on an inner end of said insert fully inserted in said neck part, with said fluid impermeable barrier being spaced axially along said longitudinal axis from said open end.
A method of manufacturing a container comprising the steps of:
- blow-molding in a production mold a container body with a hollow interior, with a sleeve-shaped neck part connected to the container body as an axial extension along a longitudinal axis of the container body and with the neck part having a seat in neck part with a contact surface of the seat, the seat being spaced axially along the longitudinal axis from an open end of the neck part;
- filling the container body with contents, while the container body is in the production mold through the neck part;
- heating a sealing element on a pre-formed insert with a peripheral region and with the sealing element being an edge of a ring of the insert and with the ring being an axially protruding rib;
- and
- after the heating of the sealing element, inserting the insert into the neck part along the longitudinal axis with the edge of the ring facing and contacting the contact surface forming a welded, solid, fluid impermeable barrier between the sealing element and the seat by melting while in the production mold, the sealing element being on an inner end of the insert fully inserted in the neck part, with the fluid impermeable barrier being spaced axially along the longitudinal axis from the open end.
Dependencies are inferred from the claim text.