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2 017 929

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(51)

IPC

(21) (22)

Application

4833474/03, 1990-04-09

(22)

Actual filing date

1990-04-09

(45)

Published

1994-08-15

(72)

Inventor

Shamshin V.N.Gavrilov V.A.Chukhrjaev N.P.Brezhitskij V.P.Dul'Tsev I.M.Kalinin V.V.

(73)

Holder

Shamshin Vladimir NikolaevichGavrilov Valerij AleksandrovichChukhrjaev Nikolaj PavlovichBrezhitskij Vladimir PavlovichDul'Tsev Ivan MikhajlovichKalinin Vladimir Vadimovich

JOINT OF AUGERS Russian patent published in 1994 - IPC

Abstract RU 2017929 C1

FIELD: hole drilling. SUBSTANCE: joint includes half- couplings with end-face cam protrusions and cavities. Side faces of protrusions and cavities opposite to working faces are inclined. Angle of inclination of side faces is smaller than friction angle, and width of projection tops is smaller than width of their base. EFFECT: reduced time for disassembly-reassembly and increased reliability. 3 dwg

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RU 2 017 929 C1

Authors

Shamshin V.N.

Gavrilov V.A.

Chukhrjaev N.P.

Brezhitskij V.P.

Dul'Tsev I.M.

Kalinin V.V.

Dates

1994-08-15—Published

1990-04-09—Filed