The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2018
Filed:
Aug. 24, 2012
Reinhard Müller-siebert, Bern, CH;
Fabrice Monti Di Sopra, Thun, CH;
Harald Giese, Stutensee, DE;
Urs Friedli, Bern, CH;
Reinhard Müller-Siebert, Bern, CH;
Fabrice Monti Di Sopra, Thun, CH;
Harald Giese, Stutensee, DE;
Urs Friedli, Bern, CH;
selFrag AG, Kerzers, CH;
Abstract
A method for fragmenting and/or weakening material by high-voltage pulses is provided. The material and a processing fluid are arranged in a processing zone formed between two electrodes such that the entire processing zone is flooded with processing fluid, and high-voltage pulses are applied to the electrodes such that high-voltage breakdowns occur between the two electrodes and/or such that predischarge channels are formed without breakdowns. An electrode with a metallic conductor is chosen for at least one of the two electrodes, the conductor being provided partially or completely with an insulator or insulating coating at the working end of the electrode that is in contact with the processing fluid, the permittivity of the insulator/insulating coating being at least 75% of the permittivity of the processing fluid.