Method of and means for applying reclosable fasteners to plastic film
US4844759A · kind A · utility
86Cited by
5References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | May 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/927
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for making reclosable bag material wherein a film has a longitudinal formation axis extending the length of a bag to be made therefrom and the film is incrementally advanced longitudinally, strips of extruded plastic profiled reclosable fastener strip are movable laterally axially across the film for location at one end of a bag made from the film with the profiles projecting in a direction toward the film, the strip is rotated to have the profiles facing away from the film and a strip base placed on the film and the base heat bonded to the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.