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2 013 559

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C1

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IPC

(21) (22)

Application

5005508/03, 1991-09-05

(22)

Actual filing date

1991-09-05

(45)

Published

1994-05-30

(72)

Inventor

Gendler S.G.Gorshkov Ju.M.Makarov V.A.Khominskij V.A.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj Gornyj Institut Im.G.V.Plekhanova

RAILWAY TUNNEL VENTILATION GATE Russian patent published in 1994 - IPC

Abstract RU 2013559 C1

FIELD: mining industry. SUBSTANCE: ventilation gate has a slide made of brittle material, such as rigid foam polyurethane. The slide is wedge-shaped and narrowing in the horizontal plane toward the slide extension direction into the tunnel. A catcher is installed on the opposite wall of the tunnel. the catcher has a recess corresponding to the slide wedge and placed in the slide motion plane. The slide may be provided with wedge-shaped cavity narrowing toward the catcher. The cavity my be provided with rigidity diaphragms. EFFECT: enlarged operating capabilities. 2 cl, 3 dwg

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RU 2 013 559 C1

Authors

Gendler S.G.

Gorshkov Ju.M.

Makarov V.A.

Khominskij V.A.

Dates

1994-05-30—Published

1991-09-05—Filed

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