BOOMERANG Russian patent published in 1995 - IPC

Abstract RU 2050163 C1

FIELD: sport games. SUBSTANCE: device has aerodynamic plates with several (more than two) thin bearing blades. The bearing blades of the plates have flat transverse profile which thickness in the working part of blades is selected in the range 1.6-3.3 mm and is developed around the longitudinal axis of the blades at an angle of 2-11 deg to the plate plane. Th plate is manufactured from elastic shock-resistant material, which density is 0,9-1,8 g/cm³. Boomerang weight is 40-50 g. EFFECT: enhanced sanitation effect. 9 cl, 23 dwg

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RU 2 050 163 C1

Authors

Nemov Arkadij Leonidovich

Alekseev Vladimir Nikolaevich

Dates

1995-12-20—Published

1992-12-02—Filed