Film carriage ring for horizontal stretch film wrapping or packaging machines, and a method of making the same
US6085488A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Dec 18, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B11/008
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A composite ring member comprises an annular ring member and an annular reinforcing ring member welded to the external peripheral portion of the annular ring member. The annular ring member comprises a tubular stock member, having a substantially rectangular or square-shaped cross-sectional configuration, which is bent into the form of the annular ring member and the free end portions thereof are welded together. In this manner, excessive waste of material in forming conventional ring members, wherein such conventional ring members are cut out from square plates, is eliminated. Segmentally-configured gusset plate members are welded to diametrically opposite internal peripheral portions of the annular ring member so as to respectively support a film roll carriage and dispensing assembly and a counterbalancing mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.