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US 12,545,477 B2Granted
Cap provided with a tamper evident seal
AssigneeGuala Pack S.P.A.
InventorsRiccardo Zammori, Alberto Buzzi
Life of this patent
Estimating the term…
Abstract
A cap for a spout of a thin-walled flexible package having a tamper evident seal formed by a plurality of main sections is provided. Each main section of the plurality of main sections has a tooth for engaging a respective fixed ridge of the spout. The tooth radially projects inward and consists of a sharp solid element having a tooth height greater than a height of a remaining part of the main section.
Claims21
A cap for a spout of a flexible thin-walled package, comprising:
- a closure comprising an annular main wall extending along a central axis between an open lower end and a closed upper end, and a plurality of circular sectors radially projecting outward from the open lower end;
- and
- a tamper evident seal at the open lower end of the annular main wall, which is jointed with the closure by said plurality of circular sectors, the tamper evident seal comprising a plurality of main sections, wherein:
- i) each main section of the plurality of main sections circumferentially extends from a first section end to a second section end, and at the first section end, comprises a breakable bridge which, in an unbroken seal configuration, joins it to the second section end of another main section of the plurality of main sections;
- ii) each main section of the plurality of main sections comprises a fixed segment and a functional segment, joined in succession to the fixed segment, wherein the fixed segment, consisting of a band extending circumferentially, has a fixed segment height and is directly constrained to the annular main wall even in a broken seal configuration by one of said plurality of circular sectors, and the functional segment, consisting of a band extending circumferentially, has a functional segment height, extends from the fixed segment to the first section end of the main section and in the broken seal configuration remains constrained only to the fixed segment and is separated from the other main section due to breakage of the breakable bridge;
- and
- iii) each main section of the plurality of main sections comprises a tooth for engaging a respective fixed ridge of the spout, wherein said tooth is arranged upstream of the first section end, radially projects inward from the functional segment, consists of a pointed solid element, and has a tooth height greater than the functional segment height.
4 more elements
A cap for a spout of a flexible thin-walled package, comprising:
- a closure comprising an annular main wall extending along a central axis between an open lower end and a closed upper end, and a plurality of circular sectors, radially projecting outward from the open lower end;
- and
- a tamper evident seal at the open lower end of the annular main wall, which is jointed with the closure by said plurality of sectors, the tamper evident seal comprising a plurality of main sections, wherein:
- i) each main section of the plurality of main sections circumferentially extends from a first section end to a second section end, and at the first section end, comprises a breakable bridge which, in an unbroken seal configuration, joins it to the second end of another main section of the plurality of main sections;
- ii) each main section of the plurality of main sections comprises a fixed segment and a functional segment, joined in succession to the fixed segment, wherein the fixed segment is directly constrained to the annular main wall even in a broken seal configuration by one of said plurality of sectors, and the functional segment extends from the fixed segment to the first section end of the main section and in the broken seal configuration remains constrained only to the fixed segment and is separated from the other main section due to breakage of the breakable bridge;
- iii) each main section of the plurality of main sections comprises a tooth for engaging a respective fixed ridge of the spout, wherein said tooth is arranged upstream of the first section end and radially projects inward from the functional segment;
- and
- iv) the functional segment comprises weakening means for reducing a structural strength of the functional segment locally to obtain lead-in folding points.
5 more elements
Dependencies are inferred from the claim text.