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2 086 839

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C1

(51)

IPC

(21) (22)

Application

94037349/06, 1994-10-04

(22)

Actual filing date

1994-10-04

(45)

Published

1997-08-10

(72)

Inventor

Bondar' A.V.Rolin V.I.Fedotov N.K.Nekljudov L.G.Balashov V.A.

(73)

Holder

Voronezhskij Mekhanicheskij Zavod

SEALING OF COLUMN IN WELLHEAD EQUIPMENT Russian patent published in 1997 - IPC

Abstract RU 2086839 C1

FIELD: oil and gas producing industry; cup seals with plastic packing for wellhead equipment. SUBSTANCE: seal has cup 14 arranged in ring chamber 8 and two protective metal split rings 15 arranged over inner diameter and provided with slot made in two inclined planes at angle of ∠α and ∠β. EFFECT: improved quality of sealing. 2 cl, 6 dwg

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RU 2 086 839 C1

Authors

Bondar' A.V.

Rolin V.I.

Fedotov N.K.

Nekljudov L.G.

Balashov V.A.

Dates

1997-08-10—Published

1994-10-04—Filed

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