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2 124 667

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IPC

(21) (22)

Application

97112217/06, 1997-07-21

(22)

Actual filing date

1997-07-21

(45)

Published

1999-01-10

(72)

Inventor

Zatsepin Ju.S.Tjurin V.S.Fadeev E.V.

(73)

Holder

Saratovskoe Aktsionernoe Proizvodstvenno-Kommercheskoe Otkrytoe Obshchestvo

BREATHING VALVE Russian patent published in 1999 - IPC

Abstract RU 2124667 C1

FIELD: oil, oil refining and petrochemical industry; sealing of gas space and equalization on of pressure in reservoir containing highly volatile materials. SUBSTANCE: valve has housing with working chamber. Pressure and vacuum seals are connected to housing by means of flexible plates. Axle of pressure seal is inclined relative to horizontal plane, and axle of vacuum seal is arranged horizontally. Additional working chamber communicates with reservoir through pressure and vacuum seals. EFFECT: enlarged operating capabilities, cut down material losses, no adverse effect on environment. 1 dwg

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RU 2 124 667 C1

Authors

Zatsepin Ju.S.

Tjurin V.S.

Fadeev E.V.

Dates

1999-01-10—Published

1997-07-21—Filed

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