IP Verse

Rotation Drive

Patent No. EP3388385 (titled "Rotation Drive") was filed by Epsilon Kran on Apr 12, 2017. The application was issued on Sep 8, 2021.

Patent Summary

A hydraulic rotational drive (1) rotates load-handling equipment (2) relative to a crane arm (3) using a shaft (4) and shaft bearing (18), connected via first (5) and second (6) securing means. Torque is transmitted to the shaft via oil acting on internal vanes (7) through an oil feed and discharge. The drive incorporates a rotary encoder (8) to detect the shaft's angular position relative to the shaft bearing; the encoder is at least partially housed within at least one recess (9) located in the shaft and/or shaft bearing. Electrical connectivity is provided by a sliding contact device (11) interfaced with a current supply line (12) and a current discharge line (13). The system is applicable to cranes and harvesters.

Patent Family

Patent family tree
Statuses, jurisdictions and citation links are shared on request.

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.

CompanyOpposition DateRepresentative
INDEXATOR ROTATOR SYSTEMSJun 3, 2022EHRNER & DELMAR PATENTBYRA

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

EP3388385

EPSILON KRAN
Application Number
EP17166255A
Filing Date
Apr 12, 2017
Status
Granted And Under Opposition
Aug 6, 2021
Publication Date
Sep 8, 2021
External Links
Slate, Register , Google Patents