CORE DRILLING BIT Russian patent published in 1994 - IPC

Abstract RU 2023852 C1

FIELD: rock-breaking tools. SUBSTANCE: end of support of each preceding rolling cutter has slanting surface 4 which is parallel to mating end face 5 of each subsequent cutter 3. Surface 4 is conjugated with end face 5. EFFECT: improved design. 2 dwg

Similar patents RU2023852C1

Title	Year	Author	Number
ROLLER-CUTTER CORE DRILL BIT	1991	Ravilov F.F. Ehdel'Man Ja.A. Messer A.G. Sianka-Ibarra L. Gotlib M.V.	RU2021469C1
ROLLER-CUTTER CORE DRILL BIT	1991	Gotlib M.V. Messer A.G. Ehdel'Man Ja.A.	RU2021468C1
ROLLER-CUTTER CORE DRILL BIT	1991	Ehdel'Man Ja.A. Rajkhert L.A. Krivonenkov S.P. Rajkhert S.L. Kuntsjak Ja.V.	RU2021470C1
CORE DRILL	0	Barabashkin Igor Ivanovich Dynin Nikolaj Vasilevich Gavrilov Yaroslav Sergeevich	SU1359433A1
DRILLING CHISEL CUTTER	2003	Cherkasov V.I. Kravchenko A.E. Bebenin V.Ju.	RU2249088C2
CORE DRILL BIT	0	Barabashkin Igor Ivanovich Kuntsyak Yaroslav Vasilevich Gavrilov Yaroslav Sergeevich	SU1353884A1
	0	Barabashkin Igor Ivanovich Konstantinov Leonid Pavlovich Maksimenko Boris Pantelejmonovich Sianka Ibarra Luis	SU524904A1
DRILL BITS AND DIAMOND TOOL	1991	Ospanov Zh.K. Ibrashev K.N. Liberman V.I. Dzhulamanov B.Zh. Zakharov V.V. Oksner V.A.	RU2023859C1
CORE DRILLING BIT	0	Barabashkin Igor Ivanovich Messer Aleksej Georgievich Sianka-Ibarra Luis Fomicheva Valentina Ilinichna	SU1649083A1
ROLLER-CUTTER CORE DRILLING BIT	0	Barabashkin Igor Ivanovich Messer Aleksej Georgievich Sianka-Ibarra Luis	SU1684458A1

RU 2 023 852 C1

Authors

Gotlib M.V.

Messer A.G.

Ravilov F.F.

Sianka-Ibarra L.

Dates

1994-11-30—Published

1990-11-29—Filed