Heat-seal splicing assembly and method
US5669998A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | May 4, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/1752
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and web splicing assembly for heat-seal splicing together a trailing end of running first, two-sided plastic material web and a leading end of a second, two-sided plastic material web, and then for heat-seal splicing together a leading end of third, two-side plastic material web and the trailing of the then running, second web so that after the webs have been spliced and are running, like surfaces of the webs face the same direction. The web splicing assembly includes first and second splicing sub-assemblies. The first sub-assembly has a first, relatively movable slide bar and a first, relatively fixed nip bar. The second sub-assembly has a second, relatively movable slide bar and a second, relatively fixed nip bar. The sub-assemblies are each movable between a first position and a second position. In their first positions, the sub-assemblies are disposed so that portions of the webs to be heat-seal spliced are clamped between the first slide bar and the second nip bar. In their second positions, the sub-assemblies are disposed so that the portions of the webs to be heat-seal spliced are clamped between the second slide bar and the first nip bar. Each slide bar carries a h…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.