Apparatus for dividing heat-shrinkable plastic film into different temperature regions
US9027313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2012 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Sep 4, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B2220/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus and a process for dividing heat-shrinkable plastic film into different temperature regions within a shrink wrap oven including a movable platform; a cylindrical tube immovably mounted within the oven in the direction of movement of the platform and including a platform for supporting a portion of the heat-shrinkable plastic film and a slit running the length of said cylindrical tube; a package covered with heat shrinkable plastic film and including that portion of the heat-shrinkable plastic film resting on the platform adjacent the cylindrical tube; an electric fan mounted at the opposite end of the cylindrical tube containing the platform and sucking ambient air through the cylindrical tube to cool that portion of the heat-shrinkable plastic film as the heat-shrinkable plastic film is tightly shrunk around the package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.