BIT FOR ROTATIONAL DRILLING Russian patent published in 1994 - IPC

Abstract RU 2007540 C1

FIELD: drilling. SUBSTANCE: in bit for rotational drilling distance "b" between vertex of main cutting edge 4 of one of elements 3 and vertex of cutting edge 8 of element 7 amounts to 0.5-1.5 of diameter "d" of element 3. Width "a" of cutting edge of element 7 amounts to 0.25-0.5 of distance "k" between side core-forming cutting edges 6 of elements 3. EFFECT: enhanced efficiency of drilling of holes in mining industry. 2 cl, 2 dwg

Similar patents RU2007540C1

Title	Year	Author	Number
ROTARY DRILLING CUTTER	1992	Baturin Ju.E. Petrov A.I. Baturin A.Ju. Smirnov G.F.	RU2047724C1
ROTARY DRILLING CUTTER	0	Pavlenko Vladimir Ilich Litkevich Yurij Fedorovich Olejnikov Boris Andreevich Sveshnikov Igor Arkadevich Krasnik Vyacheslav Grigorevich Virovets Lyusen Nikolaevich Anokhin Viktor Ivanovich	SU1686114A1
BIT FOR ROTARY DRILLING	1991	Krasnik Vjacheslav Grigor'Evich[Ua] Dabizha Evgenij Viktorovich[Ua] Sveshnikov Igor' Arkad'Evich[Ua] Olejnikov Boris Andreevich[Ua] Petriga Petr Vasil'Evich[Ua] Svechnikov Aleksej Alekseevich[Ua] Biber Vladimir Ivanovich[Ua]	RU2066729C1
ROCK CUTTING ELEMENTS OF CUTTING AND CUTTING-CHIPPING TYPE	2019	Predein Aleksandr Petrovich	RU2723779C1
ROTARY DRILLING BIT	0	Sveshnikov Igor Arkadevich Olejnikov Boris Andreevich Krasnik Vyacheslav Grigorevich Virovets Lyusen Nikolaevich Pavlenko Vladimir Ilich Litkevich Yurij Fedorovich Petrov Nikolaj Grigorevich Rodionov Nikolaj Sergeevich Pashchevskij Boris Andreevich Medovyj Yurij Arevich	SU1668620A1
BORING BIT FOR ROTARY DRILLING	2000	Prjadko Ju.A. Prokushenko S.I. Polyntsev N.A.	RU2167259C1
DRILL BIT	1992	Pinchuk Nikolaj Petrovich[Ru] Mel'Nichuk Igor' Pavlovich[Ru] Panin Nikolaj Mitrofanovich[Ru] Dumkin Lev Nikolaevich[Ru] Peretjaka Pavel Vladimirovich[Ua] Sorokin Vladimir Fedorovich[Ru]	RU2074945C1
DRILL BIT	0	Fedorov Lazar Nikolaevich Bogdanov Robert Konstantinovich Fadeev Vasilij Fedorovich	SU1752914A1
CROWN BIT FOR ROTARY PERCUSSIVE DRILLING	0	Melamed Yurij Aleksandrovich Kiselev Andrej Timofeevich Kogan David Iosifovich Sulakshin Stepan Stepanovich	SU1046465A1
ROTARY DRILL BIT	0	Krasnik Vyacheslav Grigorevich Bondarenko Fedor Fedorovich Chernetskij Vladimir Iosifovich Lushakov Aleksandr Valerevich Forsh Artur Evaldovich	SU1765347A1

RU 2 007 540 C1

Authors

Sveshnikov I.A.

Olejnikov B.A.

Krasnik V.G.

Zabolotnyj S.D.

Smekalenkov S.V.

Dates

1994-02-15—Published

1991-08-19—Filed