Method for the production of at least one aroma protection valve, and aroma protection valve
US12391449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Mar 25, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2205/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for producing at least one, in particular external, aroma protection valve for a packaging container, having a basic element and having a valve membrane which is connected at least in sections to the basic element in a joining process by an energy input, the basic element and the valve membrane being connected to each other without an adhesive in the joining process. The basic element and the valve membrane (14a) are connected at least in sections in the joining process by ultrasonic welding, wherein the basic element and the valve membrane are connected to each other in the joining process on a base element, in particular a film web, which is provided for handling and/or stabilizing the basic element and/or the valve membrane during the joining process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.