ICE BREAKING DEVICE Russian patent published in 1995 - IPC

FIELD: stationary semi-submerged oil-and- gas objects used in ice conditions. SUBSTANCE: device is ice- breaking stud mounted on vertical column of object for rotation in horizontal plane. Fore extremity of stud engageable with ice is made in form of one-sided wedge in plan; vertical side of this wedge is flat with pointed projection over lower edge; other side which is engageable with first one is inclined and curvilinear in form. When vertical side gets in contact with drift ice, it breaks it in plane of side; other side breaks ice and brings broken pieces of ice away from column of object. EFFECT: enhanced reliability. 1 dwg