GEAR TO FORM DIRECTIONAL FRACTURES Russian patent published in 2003 - IPC

Abstract RU 2202040 C1

FIELD: mining industry, formation of fractures in holes in order to separate individual blocks from rock mass, excavation of valuable crystalline raw material and building stone. SUBSTANCE: gear includes cylindrical body coming in the form of tube made of springy material and carrying longitudinal wedges on outer surface. Wedges are placed along three lines of crossing with planes passing through axis of gear and oriented at angle of 120 degrees one relative another. EFFECT: enhanced functional efficiency of gear thanks to capability to form fractures simultaneously in several planes. 2 cl, 4 dwg

Similar patents RU2202040C1

Title	Year	Author	Number
DEVICE FOR FORMATION OF DIRECTED FRACTURES IN BOREHOLES	1999	Kju N.G. Lekontsev Ju.M. Frejdin A.M. Chernov O.I.	RU2168018C1
METHOD OF ROCKS BREAKAGE	2000	Kju N.G. Frejdin A.M. Chernov O.I.	RU2167293C1
DEVICE FOR FORMATION OF DIRECTED FRACTURES IN WELLS	2001	Kju N.G. Novik A.V. Frejdin A.M.	RU2182968C1
DEVICE FOR FORMATION OF DIRECTIONAL FRACTURES IN BOREHOLES	2002	Kju N.G. Tsygankov D.A.	RU2209969C1
DOWN-HOLE GEAR TO FORM DIRECTED CRACKS	2001	Kju N.G. Novik A.V. Simonov D.S.	RU2184214C1
METHOD OF ROCKS BREAKAGE	2001	Kju N.G. Novik A.V. Simonov D.S. Frejdin A.M.	RU2186969C1
DEVICE FOR FORMING DIRECTED FRACTURES IN BOREHOLES	2000	Kju N.G. Frejdin A.M. Chernov O.I.	RU2167294C1
METHOD OF ROCK BREAKAGE	1997	Kju N.G. Chernov O.I.	RU2131032C1
HOLE DEVICE FOR FORMATION OF DIRECTED FRACTURES	2000	Kju N.G. Frejdin A.M. Chernov O.I.	RU2181833C2
DOWNHOLE DEVICE FOR FORMATION OF DIRECTED FRACTURES	2000	Kju N.G. Frejdin A.M. Chernov O.I.	RU2167295C1

RU 2 202 040 C1

Authors

Kju N.G.

Novik A.V.

Uskov V.A.

Dates

2003-04-10—Published

2001-07-26—Filed