Medicor Muvek

Altalanos Szolgaltato Es Epitoipari Kisszovetkezet

Laszlo Kalman

Gabor Nagy

Peter Csontos

Istvan Wein

Tibor Kondor

Bela Lam

Laszlo Henter

Sandor Marso

The invention relates to an apparatus for the removal of ferromagnetic materials from liquids, organic or inorganic compounds and mixtures, respectively, mainly fuels, for treating with a magnetic field and reduction of surface tension. The apparatus according to the invention contains a plurality -at least two- coaxial magnets having a hole therein and being in the direction of flow of the liquid and being separated by a disc, as well as housing made of a non-magnetizable material closed at both ends with end-closing means and provided with a bore for passing through the liquid to be treated.

Apparatus for the removal of ferromagnetic materials from liquids,

An inverter for diagnostic X-ray equipment, comprising a thyristor bridge with an input diagonal connected in series with two commutating inductances across a DC power supply, is provided with a start-stop circuit which includes an ancillary thyristor connected in series with a diode and a current-limiting impedance across one of the bridge arms. On start-up, the ancillary thyristor is triggered simultaneously with the diagonally opposite bridge thyristor in order to connect the current-limiting impedance in series with the AC output diagonal of the bridge during the first half-period; for a quick cutoff, the ancillary thyristor and the associated bridge thyristor are turned on together whereby two previously charged quenching capacitors, one of them included in the start-stop circuit, are discharged through the commutating inductance in series with the associated bridge arm to terminate conduction in another bridge arm fed through the same commutating inductance. A protective unit connected across the input diagonal of the bridge includes a further capacitor, charged from an auxiliary voltage source, which reverse-biases the bridge thyristors by way of another thyristor fired upon detection of a short circuit or overload.

High-power diagnostical X-ray equipment with thyristor converter

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Budapest, Hungary

Laszlo Kalman