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(19)

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2 691 238

(13)

(51)

IPC

E02F5/18(2006-01-01)

E21B1/26(2006-01-01)

(21) (22)

Application

2018126887, 2018-07-20

(24)

Start date

2018-07-20

(22)

Actual filing date

2018-07-20

(45)

Published

2019-06-11

(72)

Inventor

Chervov Vladimir VasilevichChervov Aleksandr VasilevichTishchenko Igor Vladimirovich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Uchrezhdenie Nauki Institut Gornogo Dela Im. N.A. Chinakala Sibirskogo Otdeleniya Rossijskoj Akademii Nauk

IMPACT DEVICE Russian patent published in 2019 - IPC E02F5/18 E21B1/26

Abstract RU 2691238 C1

FIELD: machine building.

SUBSTANCE: invention relates to mining and construction equipment, is used for driving of steel pipes (jackets) at trenchless laying of pipeline and other rod elements in soil at vertical and inclined immersion of pile elements. Proposed device comprises housing accommodating two strikers, one main and one extra, coaxially arranged therein.

EFFECT: increased frequency of impact pulses.

3 cl, 3 dwg

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RU 2 691 238 C1

Authors

Chervov Vladimir Vasilevich

Chervov Aleksandr Vasilevich

Tishchenko Igor Vladimirovich

Dates

2019-06-11—Published

2018-07-20—Filed