Method and apparatus for applying controlled heat to a group of articles disposed within a shrink film wrapper
US4597247A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1985 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Oct 15, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B2220/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
For applying heat to groups of articles disposed within a wrapper of shrink film whose ends are overlapped and disposed below the articles, a tunnel is provided including a conveyor through the tunnel having air passages therethrough and on which the groups of articles are disposed while being moved through the tunnel, a heater disposed below the conveyor, a primary fan for driving air through the heater and into a conduit which directs heated air through the passages in the conveyor and directly to the overlapped ends of the wrapper together with a fan and conduit for directing heated air at a lower temperature to the ends and sides of the groups of articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.