Patent ID: 6414982
Filing Date: 2002-07-02
Classification: C03B,H05B

Abstract:
An apparatus for melting and refining glass and ceramic compounds, excluding metals, and also for heating the compounds for crystal growing, comprising:a crucible for receiving the compound to be heated; a high frequency system for heating the compound by means of supplying high frequency energy to the compound in the crucible, said high frequency system comprising: a first high frequency self-excited oscillation circuit having an induction coil looping around said crucible and a capacitor connectable to said induction coil, and at least a second high frequency self-excited oscillation circuit comprising said induction coil and a second capacitor connectable to said induction coil; each capacitor comprising an individual capacitor battery which is housed in an oscillator housing separate from oscillator housings of other capacitor batteries; each of said capacitor batteries together with said induction coil being operable as an oscillation circuit without the necessity of a change of remaining oscillation circuits.