Method & apparatus for sealing fitment tubes into pouches
US5484375A · kind A · utility
24Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Mar 11, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7148
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method of heat sealing fitment tubes to pouches or bags of flexible film using a pair of hot bars. Also disclosed is the use of warm bars or cold bars to cool the hot bar seal. An apparatus for producing pouches with fitment tubes sealed thereto as well as the pouches so produced is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.