Low-noise film unwrapping and device
US5884453A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Jul 14, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B11/045
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and device for unwrapping self-adhering films at reduced noise levels are disclosed. The method and device include means to maintain a sufficiently high unwrapping take-off angle during the unwrapping and dispensing or unwinding of film rollstock. Suitable means provide for substantial acceleration and adjustment of the rollstock rotational speed relative to the speed of the first power driven member of an unwrapping apparatus, or the use of one or more carefully positioned deflector members. The method and device is particularly useful in unwrapping and dispensing operations of high cling stretch wrap films involving the use of turntable-style power driven equipment as well as in unwrapping and unwinding operations of pressure-sensitive adhesive tapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.