Bag body, and manufacturing method and manufacturing device for bag body
US11999532B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2018 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Apr 20, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A bag includes: a film defining a containable space and a first area and a second area both facing the containable space; an elongated tearing guide piece directly or indirectly bonded to the first area; an elongated belt-shaped base disposed between the tearing guide piece and the second area and along the tearing guide piece; a tab defined by a cut portion penetrating through the first area of the film, the tearing guide piece and the belt-shaped base; and a surrounding seal area intersecting the tearing guide piece in a width direction, the surrounding seal area bonding the first area and the second area to define an area surrounding the tab.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.