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2 197 618

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IPC

(21) (22)

Application

2002109198/03, 2002-04-10

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Start date

2002-04-10

(22)

Actual filing date

2002-04-10

(45)

Published

2003-01-27

(72)

Inventor

Gribov V.I.Elgaev S.G.Erkalov G.V.Ershov A.V.Ermakov A.I.Lobanov I.Ju.Lanchikov K.V.Milov V.G.Mel'Nikov M.A.Rakhmaninov Ju.P.Razenkov V.A.Sokolov A.L.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

SOUND SUPPRESSION MUFFLER OF UNDERGROUND MINE WORKING Russian patent published in 2003 - IPC

Abstract RU 2197618 C1

FIELD: mining and construction engineering. SUBSTANCE: sound suppression muffler has lining panels 2 and intermediate panels 3 located along mine working walls. Intermediate panels are two-layer structure with closed air interlayers at ends. Each panel is assembled of highly porous blocks based on expanded clay aggregate gravel, fraction 5-10 mm in the form of filler, and cement of 400-500 grade taken in ratio of 4:1. EFFECT: higher efficiency of sound suppression under conditions of underground mine workings with low weight and low cost of manufacture. 2 dwg

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RU 2 197 618 C1

Authors

Gribov V.I.

Elgaev S.G.

Erkalov G.V.

Ershov A.V.

Ermakov A.I.

Lobanov I.Ju.

Lanchikov K.V.

Milov V.G.

Mel'Nikov M.A.

Rakhmaninov Ju.P.

Razenkov V.A.

Sokolov A.L.

Dates

2003-01-27—Published

2002-04-10—Filed