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2 276 270

(13)

(51)

IPC

E21D23/06(2006-01-01)

(21) (22)

Application

2004133580/03, 2004-11-17

(24)

Start date

2004-11-17

(22)

Actual filing date

2004-11-17

(45)

Published

2006-05-10

(72)

Inventor

Tolstunov Sergej AndreevichBlokhin Sergej Leonidovich

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Gornyj Institut Im. G.V. Plekhanova Universitet)"

POWERED SUPPORT SECTION COVERING Russian patent published in 2006 - IPC E21D23/06

Abstract RU 2276270 C1

FIELD: mining, particularly to develop coal, potassium and rock salt formations with mechanized mining complexes.

SUBSTANCE: powered support section covering comprises apron in which sliding apron supported by guiding means is installed and hydraulic jack for sliding apron movement. The sliding apron is covered with protective case connected with the hydraulic jack. The sliding apron has groove formed in lower part thereof and provided with pneumatic cylinder adapted to be filled with air when sliding apron enters coal slot.

EFFECT: prevention of apron gumming during mineral excavation, prevention of sliding apron damage, prevention of mineral inrush into mining face, creation of additional support zone for powered support.

3 dwg

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RU 2 276 270 C1

Authors

Tolstunov Sergej Andreevich

Blokhin Sergej Leonidovich

Dates

2006-05-10—Published

2004-11-17—Filed