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2 140 338

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Application

98106146/28, 1998-03-30

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Start date

1998-03-30

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Actual filing date

1998-03-30

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Published

1999-10-27

(72)

Inventor

Murko V.I.Judin B.V.Nekhoroshij I.Kh.Trubetskoj K.N.

(73)

Holder

Novokuznetskoe Gosudarstvennoe Nauchno-Proizvodstvennoe Predprijatie

SIZING SCRAPER Russian patent published in 1999 - IPC

Abstract RU 2140338 C1

FIELD: hydraulic pipeline transportation of materials in coal production, building and other industry branches. SUBSTANCE: sizing scraper is ball-shaped; gravity center of scraper is shifted relative to ball center. On surface of ball hemisphere arranged closer to gravity center of ball there are uniformly arranged dents and recesses. EFFECT: lowered cost of cleaning pipeline, reliable transportation of hydraulic mixtures of solid materials by pipeline. 1 dwg

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RU 2 140 338 C1

Authors

Murko V.I.

Judin B.V.

Nekhoroshij I.Kh.

Trubetskoj K.N.

Dates

1999-10-27—Published

1998-03-30—Filed

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