Method of making multiple reclosable bag material
US4528224A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1982 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Sep 10, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249923
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making multiple reclosable bag material, which comprises advancing from a supply source bag wall film in continuous strip form and providing confronting colinear wall panel portions with surfaces facing toward one another, feeding separable fastener assembly in continuous strip form from a supply source into corunning relation between the wall panel portions, and permanently securing to the wall panel portion surfaces oppositely facing base surfaces of the fastener assembly. The material thus formed is adapted to be split longitudinally into a plurality of bag material strip sections adapted to be sealed across at spaced intervals into bag units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.