METHOD AND DEVICE FOR CRACKING ARTICLES MADE OF BRITTLE AND HARD MATERIALS Russian patent published in 2006 - IPC B02C19/18 

FIELD: crushing or disintegrating.

SUBSTANCE: method comprises affecting the article with electric pulse discharges between the electrodes generated in the pressure-tight discharge chamber filled with fluid. The inner surface of the chamber is made of a trancated ellipsoid of rotation. The positive electrode is mounted in one focus of the ellipsoid or in the vicinity of it inside the discharge chamber , and the negative electrode is mounted from the outer side of the discharge chamber at the second focus of the ellipsoid of rotation or in the vicinity of it.

EFFECT: expanded functional capabilities.

9 cl, 7 dwg