WORKING TOOL OF MIXER Russian patent published in 1995 - IPC

FIELD: chemical industry. SUBSTANCE: all versions of working tool include shaft with blade in the form of single-sided surfaces of Mobius strip type anchored on it in opposition. Development of blades has shape of X. In compliance with first version angles between plane perpendicular to shaft axis and planes of blades over span are equal and have same sign. In agreement with second version these angles are equal but have different signs. EFFECT: enhanced productivity of working tool. 2 cl, 19 dwg