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2 020 347

(13)

(51)

IPC

(21) (22)

Application

4934068/29, 1991-05-07

(22)

Actual filing date

1991-05-07

(45)

Published

1994-09-30

(72)

Inventor

Аtrushkevich А.А.Сhernykh V.I.Мedvedkov V.I.

(73)

Holder

Аtrushkevich Аrkadij АnisimovichСhernykh Vladimir Il'IchМedvedkov Vladimir Igorevich

GATE VALVE Russian patent published in 1994 - IPC

Abstract RU 2020347 C1

FIELD: pipe fittings. SUBSTANCE: bearing assembly has the form of one thrust ball bearing whose cages are installed with an axial clearance relative to upper casing and cover. Both cages are positioned with a radial clearance relative to nut of ball-and-screw transmission and upper casing. The axial and radial clearances are selected so as to ensure free alternate rotation of cages. EFFECT: improved design. 3 dwg

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RU 2 020 347 C1

Authors

Аtrushkevich А.А.

Сhernykh V.I.

Мedvedkov V.I.

Dates

1994-09-30—Published

1991-05-07—Filed