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2 057 890

(13)

C1

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IPC

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Application

94019076/03, 1994-05-25

(22)

Actual filing date

1994-05-25

(45)

Published

1996-04-10

(72)

Inventor

Bikbulatov Irek Kamilevich[Ru]Paguta Bogdan Andreevich[Ua]Torgashov Aleksandr Vladimirovich[Ru]Ginzburg Ehduard Samuilovich[Ru]Guk Roman Iosifovich[Ua]

(73)

Holder

Bikbulatov Irek Kamilevich[Ru]Paguta Bogdan Andreevich[Ua]Torgashov Aleksandr Vladimirovich[Ru]Ginzburg Ehduard Samuilovich[Ru]Guk Roman Iosifovich[Ua]

CONE DRILL BIT Russian patent published in 1996 - IPC

Abstract RU 2057890 C1

FIELD: drilling equipment. SUBSTANCE: in cone drill bit cutting edge 7 of each inclined tooth is arranged in plan view at angle to generatrix 8 of cone 9 of rotary bit. In peripheral rims 10 this angle β1 is equal to 3-8 deg and in vertex rims 11 angle β2 is 7-12 deg with turn of cutting edge 7 in direction opposite to that of cutting edge 7 of teeth 3 of peripheral rims 10. EFFECT: improved operational efficiency and reliability of bits with hard-alloy inserts. 5 dwg

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RU 2 057 890 C1

Authors

Bikbulatov Irek Kamilevich[Ru]

Paguta Bogdan Andreevich[Ua]

Torgashov Aleksandr Vladimirovich[Ru]

Ginzburg Ehduard Samuilovich[Ru]

Guk Roman Iosifovich[Ua]

Dates

1996-04-10—Published

1994-05-25—Filed

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