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2 086 847

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C1

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IPC

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Application

94029167/06, 1994-08-03

(22)

Actual filing date

1994-08-03

(45)

Published

1997-08-10

(72)

Inventor

Permjakov N.G.Gumerov A.G.Larionov A.F.Potapov V.A.Strikovskij L.L.Chepurskij V.N.

(73)

Holder

Institut Problem Transporta Ehnergoresursov

SLEEVE-COUPLING OF TUBES Russian patent published in 1997 - IPC

Abstract RU 2086847 C1

FIELD: oil production industry. SUBSTANCE: made in second end-piece are spiral grooves and matching spiral grooves are also made in sleeve ensuring tight seating over cylindrical surface of tube end-pieces being connected. One of spiral grooves is made with radial recess, and fixing of sleeve relative to first end-piece is effected by means of cylindrical spiral, and relative to second end-piece by means of keys and their number is equal to number of spiral grooves. EFFECT: high efficiency. 4 dwg

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RU 2 086 847 C1

Authors

Permjakov N.G.

Gumerov A.G.

Larionov A.F.

Potapov V.A.

Strikovskij L.L.

Chepurskij V.N.

Dates

1997-08-10—Published

1994-08-03—Filed

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