One-way valve for food packages
US12312146B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2023 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Jan 13, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/3453
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A one-way valve for mounting over an aperture formed on a food package for cooking, storing and/or heating of ready-to-eat food is disclosed. The one-way valve comprises a first membrane comprising a top surface and a bottom surface, where the bottom surface is adapted to be fixed to the food package. The one-way valve further comprises a second membrane comprising an upper surface and a lower surface. The lower surface of the second membrane is adhered to the top surface of the first membrane by means of a first adhesive and a second adhesive. The first adhesive is arranged on a center portion and each of two lateral edge portions of an overlapping surface area of the first membrane and second membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.