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(19)

(11)

2 319 079

(13)

(51)

IPC

F24F13/00(2006-01-01)

F24F13/24(2006-01-01)

E21F1/00(2006-01-01)

F16L55/33(2006-01-01)

(21) (22)

Application

2007105192/06, 2007-02-13

(24)

Start date

2007-02-13

(22)

Actual filing date

2007-02-13

(45)

Published

2008-03-10

(72)

Inventor

Ershov Aleksandr VladimirovichZajtsev Sergej ViktorovichIzjumov Aleksej SergeevichKrivenko Andrej Askol'DovichLanchikov Konstantin Vasil'EvichLevina Natalija PetrovnaLobanov Igor' Jur'EvichMel'Nikov Mikhail AleksandrovichRazinkov Vladimir AlekseevichTrigubova Ljudmila Romual'Dovna

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

VENTILATION BOOTH OF THE METRO Russian patent published in 2008 - IPC F24F13/00 F24F13/24 E21F1/00 F16L55/33

Abstract RU 2319079 C1

FIELD: the booth is assigned for ventilation of the shaft of the Metro.

SUBSTANCE: the booth includes an above the shaft building with air passing windows and an external barrier in the shape of a ring-type housing. The housing is fulfilled in the shape of a expanding upwards funnel with sound reflecting surface. A hollow gap is between the housing and the above the shaft building.

EFFECT: reduces noise levels with the aid of a single element out of sheet material.

1 dwg

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RU 2 319 079 C1

Authors

Ershov Aleksandr Vladimirovich

Zajtsev Sergej Viktorovich

Izjumov Aleksej Sergeevich

Krivenko Andrej Askol'Dovich

Lanchikov Konstantin Vasil'Evich

Levina Natalija Petrovna

Lobanov Igor' Jur'Evich

Mel'Nikov Mikhail Aleksandrovich

Razinkov Vladimir Alekseevich

Trigubova Ljudmila Romual'Dovna

Dates

2008-03-10—Published

2007-02-13—Filed