Reclosable bag, material, and method of and means for making same
US4617683A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1984 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Jan 30, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B70/8131
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A reclosable bag, and material for making the bag, and wherein in one aspect extruded resiliently flexible plastic profiled reclosable fastener strip means for reclosable bags is located across the longitudinal formation axis of the bag wall web material, and in another aspect of the invention single strip fastener strip has at one or more suitable locations therealong separations across the profiles, such as notches, to facilitate bending or folding of the strip upon itself so that the self-interlocking profiles of the portions of the strip folded upon themselves are adapted for reclosable interlocking with one another. The interlockable portions of the strip may have separable air tight sealing ribs therealong. The web and fastener material and fastener assembly is especially suitable for machines wherein the bags are formed, filled and sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.