Wedge activated zipper
US5509734A · kind A · utility
144Cited by
11References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Jan 11, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44B19/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A reclosable bag is formed of walls defining a closure with a mouth. The walls have interlocking profiles on their internal surfaces adjacent to the mouth to enable the bag to be sealed. One of the two profiles has a spreader which fits between and spreads the interlocking members on the other profile to bring about a more effective sealing of the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.