SPRING WASHER Russian patent published in 2002 - IPC

Abstract RU 2193702 C1

FIELD: mechanical engineering and mining art; various joints working under conditions of impact or vibrator loads. SUBSTANCE: spring washer is made from strip in form of ring with slot and ends bent to opposite sides. On side of lateral surface through holes are made in strip. Above centers of these holes, strip has maximum expansion and its ends are cut over center of through holes. EFFECT: possibility of taking up considerable axial loads at simultaneous locking (holding) threaded joint from spontaneous unscrewing. 4 dwg

Similar patents RU2193702C1

Title	Year	Author	Number
DOWNHOLE DEVICE FOR FORMATION OF DIRECTED FRACTURES	2000	Kju N.G. Frejdin A.M. Chernov O.I.	RU2167295C1
DEVICE FOR FORMATION OF DIRECTED FRACTURES IN WELLS	2001	Kju N.G. Novik A.V. Frejdin A.M.	RU2182968C1
HOLE DEVICE FOR FORMATION OF DIRECTED FRACTURES	2000	Kju N.G. Frejdin A.M. Chernov O.I.	RU2181833C2
DEVICE FOR FORMING DIRECTED FRACTURES IN BOREHOLES	2000	Kju N.G. Frejdin A.M. Chernov O.I.	RU2167294C1
DEVICE FOR FORMATION OF DIRECTIONAL FRACTURES IN BOREHOLES	2002	Kju N.G. Tsygankov D.A.	RU2209969C1
DEVICE FOR FORMATION OF DIRECTED FRACTURES IN BOREHOLES	1999	Kju N.G. Lekontsev Ju.M. Frejdin A.M. Chernov O.I.	RU2168018C1
REVERSIBLE PNEUMODRILL	2000	Terskov A.D. Maslakov P.A. Kostylev A.D. Smoljanitskij B.N.	RU2167246C1
DOWN-HOLE GEAR TO FORM DIRECTED CRACKS	2001	Kju N.G. Novik A.V. Simonov D.S.	RU2184214C1
GEAR TO FORM DIRECTIONAL FRACTURES	2001	Kju N.G. Novik A.V. Uskov V.A.	RU2202040C1
CORE BARREL	2000	Lipin A.A. Marus V.I.	RU2181828C2

RU 2 193 702 C1

Authors

Lekontsev Ju.M.

Tsygankov D.A.

Dates

2002-11-27—Published

2001-04-23—Filed