Method And Device For The Stretch-Bend Leveling Of A Metal Strip
Patent No. EP3538291 (titled "Method And Device For The Stretch-Bend Leveling Of A Metal Strip") was filed by BWG Bergwerk UND Walzwerk Maschinenbau on Sep 25, 2017. The application was issued on Nov 16, 2022.
Patent Summary
A method for stretch-bend straightening of metal strips that eliminates the need for wet processing by using polyurethane or rubber-coated rollers in a dry straightening system. The rollers are individually supported and can be adjusted independently to achieve precise control over the strip's tension and bending. The coating prevents dirt and oxide particles from adhering to the rollers, eliminating the need for spray media and associated drying and cleaning steps.
Patent Family
Patent Oppositions
Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
Dossier Documents
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
Get instant alerts for new documents
EP3538291
- Application Number
- EP17772412A
- Filing Date
- Sep 25, 2017
- Status
- Revoked
- Feb 7, 2025
- Publication Date
- Nov 16, 2022
- External Links
- Slate, Register , Google Patents