PIPE LINE SHUT-OFF FITTINGS DRIVE Russian patent published in 2004 - IPC

Abstract RU 2225558 C1

FIELD: pipe shut-off fittings drives; oil and gas transport pipe lines. SUBSTANCE: proposed drive includes transfer mechanism which is provided with shaft on which at least one screw with nut is fitted in off- center position. Nut is coaxial with shaft and diameter of its thread exceeds that of screw by doubled eccentricity between axes of screw and shaft. Located inside nut are slide block and planetary transmission which includes gear wheel (satellite) rigidly and coaxially secured with screw (carrier). EFFECT: reduction of labor consumption. 2 dwg

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RU 2 225 558 C1

Authors

Khokhrjakov B.G.

Bakalov S.I.

Shtin I.V.

Dates

2004-03-10—Published

2002-07-16—Filed