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2 018 686

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C1

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IPC

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Application

4870961/03, 1990-10-02

(22)

Actual filing date

1990-10-02

(45)

Published

1994-08-30

(72)

Inventor

Polej L.S.Parfenov V.E.Potapenko V.A.Zel'Tser Ju.G.Dubovskij Ju.P.Popov V.M.Trubnikov V.P.Merkulov V.S.Kovalev V.G.Kuznetsov V.N.Dement'Ev A.I.

(73)

Holder

Podmoskovnyj Nauchno-Issledovatel'Skij I Proektno-Konstruktorskij Ugol'Nyj Institut

DEVICE FOR CONTROL OF POWERED SUPPORT UNIT Russian patent published in 1994 - IPC

Abstract RU 2018686 C1

FIELD: mining industry. SUBSTANCE: base consists of plate with recess separating it into two longitudinal skids with supporting guide arranged between them and articulated with distributor by hydraulic line. When hydraulic cylinder is extended its shoe interacts with supporting guide and lifts the base of powered support unit above floor level. Lifted simultaneously is capping of support unit and interacts with roof. Device ensures advance of support unit with simultaneous support of roof and lifting the base without lowering of capping under conditions of unstable roof and soft floor. EFFECT: higher efficiency. 1 dwg

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RU 2 018 686 C1

Authors

Polej L.S.

Parfenov V.E.

Potapenko V.A.

Zel'Tser Ju.G.

Dubovskij Ju.P.

Popov V.M.

Trubnikov V.P.

Merkulov V.S.

Kovalev V.G.

Kuznetsov V.N.

Dement'Ev A.I.

Dates

1994-08-30—Published

1990-10-02—Filed

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