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2 128 866

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IPC

(21) (22)

Application

97112253/25, 1997-07-21

(22)

Actual filing date

1997-07-21

(45)

Published

1999-04-10

(72)

Inventor

Maksimov V.A.Shmakov L.V.Kovalev S.M.Beljanin L.A.Kuprin A.Ju.Pikos V.V.

(73)

Holder

Gosudarstvennoe Predprijatie Leningradskaja Atomnaja Ehlektrostantsija Im.V.I.Lenina

ANNULAR SEAL Russian patent published in 1999 - IPC

Abstract RU 2128866 C1

FIELD: sealing engineering; sealing annular surfaces of joints in fuel assemblies of nuclear reactors and process channels of pressure-tube reactors. SUBSTANCE: annular seal built up of two opposing collar stacks of alternating metal and filler layers resting with their open sections on snap ring has its snap ring formed by core placed between -shaped bimetal plates mounted for sliding over their contacting surface. Such design makes it possible to retain total height of seal preset when sealing the surfaces. EFFECT: improved reliability of sealing annular surfaces. 3 cl, 3 dwg

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RU 2 128 866 C1

Authors

Maksimov V.A.

Shmakov L.V.

Kovalev S.M.

Beljanin L.A.

Kuprin A.Ju.

Pikos V.V.

Dates

1999-04-10—Published

1997-07-21—Filed