Lid assembly for a packing container, packing container with such a lid assembly, and method for manufacturing same

US20180141692A1Inactive Publication Date: 2018-05-24SONOCO DEV INC
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  • Lid assembly for a packing container, packing container with such a lid assembly, and method for manufacturing same
  • Lid assembly for a packing container, packing container with such a lid assembly, and method for manufacturing same
  • Lid assembly for a packing container, packing container with such a lid assembly, and method for manufacturing same

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Embodiment Construction

[0042]Referring to the drawings, the packing container schematically shown in FIGS. 1 and 2 and designated by reference number 1 as a whole is formed by a so-called composite can in this exemplary embodiment and has a sleeve 2, which is manufactured, for example, from a paper or cardboard composite and may be provided with an essentially gas-tight and liquid-tight inner lamination with an inner, sealable or weldable cover layer, e.g., one made of polymer-coated aluminum. The sleeve 2, which does not, of course, necessarily have to have the more or less square cross section shown but may also have any other desired cross-sectional shape, e.g., a round, oval, polygonal shape, etc., is closed on its underside in the conventional manner by means of a bottom part 3 (FIG. 2), which may be manufactured itself from corresponding materials just as the sleeve 2, but also of metal, plastic or corresponding composites with high gas-tightness and liquid-tightness.

[0043]A lid ring 4 of a lid asse...

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Abstract

A lid assembly, for a packing container, includes a lid ring of a plasticizable, thermoplastic polymer material and a dimensionally stable lid part, to be placed on the lid ring. The lid part (or the lid ring) has a layer of a peelable plastic material, on a side facing the lid ring (or the lid part), that contains a sealable, thermoplastic polymer or is coated with a cover layer of such a polymer. The lid ring (or the lid part) has an end face facing the lid part (or the lid ring), with two parallel circumferential projections, arranged at a distance of at most 3 mm and sealed to the peelable layer or to the cover layer of the lid part (or of the lid ring). A packing container with such a lid assembly as well as a method for manufacturing same by ultrasonic welding are also provided.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a U.S. National Phase Application of International Application PCT / EP2015 / 001016 filed May 19, 2015, the entire contents of which are incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention pertains to a lid assembly for a packing container, with a lid ring consisting of a plasticizable, thermoplastic polymer material and with a dimensionally stable lid part that can be placed on the lid ring, wherein—the lid part has at least one layer of a peelable plastic material on its side facing the lid ring, wherein the peelable layer contains at least one sealable, thermoplastic polymer and / or is coated with a cover layer consisting of such a polymer, and wherein the lid ring has, on its end face facing the lid part, at least one circumferential projection, which is sealed to the peelable layer and / or with the cover layer of the lid part; or—the lid ring has, on its side facing the lid part, at least...

Claims

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Application Information

Patent Timeline
24 May 2018
Publication
US20180141692A1
IPC
B65B51/22; B65B7/28; B65D77/20
CPC
B65B51/225; B65B7/2878; B65D77/2024; B29L2031/7164; B29C65/08; B29C65/8253; B29C66/112; B29C66/131
Inventors
HAUCK, PETER; GERBER, EUGEN