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Main Shaft Fixture - EP4198301
The patent EP4198301 was granted to Liftra APS on Jan 29, 2025. The application was originally filed on Oct 6, 2015 under application number EP22211827A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
EP4198301
- Application Number
- EP22211827A
- Filing Date
- Oct 6, 2015
- Status
- Granted And Under Opposition
- Dec 26, 2024
- Publication Date
- Jan 29, 2025
- External Links
- Slate, Register, Google Patents
Patent Summary
A main shaft fixture for wind turbines that enables secure fixation of the main shaft during maintenance without requiring the turbine to be halted. The fixture comprises multiple radial pressure mandrels with tap shoes that can be displaced between a passive and active position to engage with the main shaft. The fixture can be mounted on stable structural components in the nacelle, including the bottom frame, and provides facilities for anchoring self-hoisting cranes. The fixture also features a slide lining that allows for controlled rotation of the main shaft during maintenance, preventing damage to the shaft and fixture.
Patent Family
Patent Oppositions
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Patent Citations (22) New
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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.
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