Patent No. EP2580825 (titled "Brush Holder For An Electrical Swivel") was filed by Single Buoy Moorings on May 25, 2011. The application was issued on May 6, 2020.
An electrical swivel with a brush holder for transferring electrical energy between a stationary feed line and a rotating connector ring, comprising a conductive body with recesses for receiving brush blocks, each block connected to the body by an electrical wire and a spring for urging it against the connector ring. The brush holder has a series of brush blocks positioned to contact the connector ring, with a cover to protect the recesses and a temperature probe to monitor brush temperature during operation.

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