Slip ring amplifier

Details Slip ring amplifier Slip ring amplifier

1998-03-18

1999-09-14

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310248, 340540, H01R 3908

Patent

active

059527625

ABSTRACT:
A slip ring amplifier has a rotor fixedly mountable on a rotatable tubular member and carrying an amplifier mounted in a recess connected to a sensor fixedly mountable on the rotatable member. A stationarily mounted stator is coupled to the rotor by bearings. A slip ring brush block with leaf contacts is mounted in a cavity between the rotor and the stator. End caps are mounted on opposite ends of the rotor and the stator and fixed to one of the rotor and stator. Labyrinth seals are disposed between each end cap and the stator. In one embodiment, an electrolytic fluid fills the cavity between the rotor and stator and surrounds the brush block and leaf contacts. In another embodiment, a dielectric coating is provided on the leaf contacts. Conductors extend from the leaf contacts through the stator to a connector fixedly mounted on the stator.

REFERENCES:
patent: 4019104 (1977-04-01), Parker
patent: 4235316 (1980-11-01), Blomberg
patent: 4252388 (1981-02-01), Brady
patent: 4294500 (1981-10-01), Wilson
patent: 4329004 (1982-05-01), Lewis
patent: 4447752 (1984-05-01), Boyce et al.
patent: 4492906 (1985-01-01), Goto et al.
patent: 4523482 (1985-06-01), Barkhoudarian
patent: 4712433 (1987-12-01), Hochstein et al.
patent: 5321374 (1993-07-01), Larsen et al.
patent: 5591925 (1997-01-01), Garshelis

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