Hydrodynamic slip ring

Details Hydrodynamic slip ring Hydrodynamic slip ring

2006-03-28

2006-03-28

Waks, Joseph (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07019431

ABSTRACT:
A slip ring assembly for transferring electrical current to an electrical device is disclosed. The slip ring assembly has a housing that is attachable to the electrical device. Disposed within the housing is a rotatable slip ring and a flexible conductor. The flexible conductor is configured to conform to the shape of the slip ring and conduct an electric current. A fluid is contained within the housing. The fluid forms a conductive film between the slip ring and the conductor when the slip ring rotates through hydrodynamic forces. The conductive film is operative to transfer electrical current between the slip ring and the conductor while also preventing wear of the slip ring and conductor.

REFERENCES:
patent: 2555997 (1951-06-01), Porail
patent: 3163792 (1964-12-01), Sayers
patent: 4047063 (1977-09-01), Reece et al.
patent: 4171496 (1979-10-01), Eriksson
patent: 5866967 (1999-02-01), Sasaki
patent: 1468155 (1977-03-01), None
patent: 07245163 (1995-09-01), None

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