Contact arrangement for air-blast switches with a tubular elemen

Details Contact arrangement for air-blast switches with a tubular elemen Contact arrangement for air-blast switches with a tubular elemen

1981-10-22

1983-11-29

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148R, H01H 3318

Patent

active

044182554

ABSTRACT:
In a contact arrangement for air-blast switches, a tubular element consisting of ferromagnetic material (the inner wall surface of which is conical and continues the contour of a nozzle aperture) is provided with a layer of graphite. The layer is formed by one or more bushings which are force fitted into the tubular element. The desired conical inner contour can be produced by machining initially cylindrical inner surfaces after mounting the bushings within the tubular element.

REFERENCES:
patent: 4032737 (1977-06-01), Huhse et al.
patent: 4160140 (1979-07-01), Rolff
patent: 4321439 (1982-03-01), Hess et al.

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