Power transfer system

Details Power transfer system Power transfer system

1980-04-11

1982-04-06

Reynolds, B. A.

Electric heating

Metal heating

Of cylinders

219 1075, 219 1079, 339 5M, 339 8R, 361 8, 310222, 307135, H05B 604, H01R 3926

Patent

active

043237487

ABSTRACT:
Disclosed is a method of transferring energy from a stationary generator of power at radio frequencies to a rotating work station such as a coil to heat inductively by selectively connecting the generator as the work station rotates past the generator. A pair of stationary contact strips connected to the generator are used to connect the low voltage, high current radio frequency (RF) energy to the rotating machine. The contact strips are a commutating device in that they can intermittently be connected to a series of brushes or contactors carried by work stations requiring power. The contact strips form a closed loop which shunts the energy at the point where the brushes engage and/or leave the contact strips thereby keeping the current flow to a minimum at those points. As the brushes slide across the contact strips they move from the shunt to the power input points on the contact strips and where the current flow increases because the voltage difference between the strips is the greatest. Consequently, the power can be transferred to the work stations without arcing as the brushes engage or leave the contact strips.

REFERENCES:
patent: 894329 (1908-07-01), Kennedy
patent: 2541527 (1951-02-01), Martin
patent: 3268218 (1966-08-01), Eannarino
patent: 3431382 (1969-03-01), Esche et al.
patent: 4246461 (1981-01-01), Jeppson

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