Bag made of thermoplastic foil
US5716137A · kind A · utility
39Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Mar 5, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/28
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a bag of thermoplastic resin foil and a method of making such a bag provided with a draw strip (3) and a hand hole (8) and in order to provide a relatively high carrying capacity the front wall (1) and the back wall (2) of the bag are each formed by an outer and an inner foil layer (1', 2') and furthermore the draw strip (3) is provided between these foil layers and is joined by side weld seams (5) with the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.