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2 129 682

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IPC

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Application

97111346/13, 1997-07-02

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Actual filing date

1997-07-02

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Published

1999-04-27

(72)

Inventor

Udovichenko S.G.Udovichenko A.S.Strelkov N.G.Luk'Janova E.A.Orlov S.M.Andreeva L.G.Nagajtsev V.F.Nagajtsev P.V.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Proizvodstvennyj KontsernMunitsipal'Noe PredprijatiePrivolzhskaja Malaja Nauchnaja Obshchestvennaja Firma Patentnykh Uslug I Rabot

METHOD OF LOCKING LIQUID Russian patent published in 1999 - IPC

Abstract RU 2129682 C1

FIELD: locking liquid n valve head of cock-box. SUBSTANCE: method consists in fittings flexible toroidal glands for shutting-off threaded joint of valve head with liquid supply pipe line and its cylindrical joint with spool valve. Spool valve is provided with tear-shaped grooves. Pressure of liquid in grooves of such section provides for compressing the glands in these grooves, thus enhancing sealing of cylindrical joint. Glands shutting-off the threaded joint of valve head with liquid supply pipe line are mounted on end and inner surfaces of locking nut of valve head at points not engageable with threaded profile. Valve head is conical at point of engagement with inner surface of locking nut. Such position of glands and construction of valve head improves sealing of glands under action of pressure of liquid. Besides that, glands located at point not engageable with threaded profile suffer wear to lesser degree. EFFECT: enhanced efficiency and reliability. 3 dwg

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RU 2 129 682 C1

Authors

Udovichenko S.G.

Udovichenko A.S.

Strelkov N.G.

Luk'Janova E.A.

Orlov S.M.

Andreeva L.G.

Nagajtsev V.F.

Nagajtsev P.V.

Dates

1999-04-27—Published

1997-07-02—Filed

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