Apparatus for curling materials
US6064853A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1999 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Nov 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00704
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for straightening material includes a first guide surface and a second guide surface opposite the first guide surface. Pin (20) for pivoting the second guide surface is included, this operating to pivot the second guide surface toward the first guide surface and away from the first guide surface. A spring (22) for biasing the second guide surface toward the first guide surface is also included, with a variable rate characteristic resulting from contact of the spring with a post (34). The variable rate characteristic allows the second guide surface to pivot away from the first guide surface in proportion to a rigidity of the material to be straightened. Material of varying rigidities is passed between the first guide surface and the second guide surface and the apparatus straightens the material for subsequent processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.