Stationary web spreader
US6488230B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 2001 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Jan 3, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/62
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Bowed spreader apparatus for laterally stretching, or stressing, a web of material carried in a selected direction along a conveyor path includes an elongate stationary spreader bar extending laterally of the path. The spreader bar has a web support face which is convexly curved both about the longitudinal axis of the bar and along the longitudinal axis. The bar includes a formed elongate support body having a degree of flexibility allowing the body to be bent in a bowed configuration. A face surface of the body is formed in a convex curve about the longitudinal axis of the body and a plurality of hardened elements are individually secured to and cover the face surface of the support body. An underlying interchangeable profiling support having a convexly curved upper surface forms the spreader bar into a selected bowed configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.