Bag construction with improved gussets
US4597103A · kind A · utility
24Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 24, 1985 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | May 24, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S383/903
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A thermoplastic bag with side or bottom gussets each defined by a pair of overlying panels having selected ends thereof sealed together and between the sealed edges of the front and rear walls of the bag. Each gusset includes a transverse tear line inward of the sealed lower ends of the panels of the gusset, and a transverse glue line bonding the two panels of the gusset to each other inward of the tear line and across the width of the gusset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.