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2 024 746

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C1

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IPC

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Application

4806780/03, 1990-04-09

(22)

Actual filing date

1990-04-09

(45)

Published

1994-12-15

(72)

Inventor

Khan A.A.Vlasov A.V.Fedjukin D.L.Vinogradov V.M.Khutsishvili V.G.Krjuchkov M.Ja.Tsyganov Ju.V.Kazikaev V.D.Mar'In V.V.Nikitin V.V.

(73)

Holder

Sovmestnoe Sovetsko-Amerikanskoe Predprijatie Ltd.

METHOD FOR BREAKAGE OF MONOLITHIC OBJECTS AND DEVICE FOR ITS REALIZATION Russian patent published in 1994 - IPC

Abstract RU 2024746 C1

FIELD: mining and construction. SUBSTANCE: method includes drilling of blasthole in monolithic object, installation of flexible member of elastomeric material with expands when heated into blasthole. Flexible member is mechanically compressed in direction of hollow longitudinal axis to take up gaps between pressing member and blasthole walls. When flexible member is heated to not above destruction temperature, it expands in volume and presses the blasthole walls. Objects is destroyed when pressure exerted on blasthole walls exceeds the material tensile strength. EFFECT: reduced cost and labor input in breakage of monolithic objects. 38 cl, 15 dwg

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RU 2 024 746 C1

Authors

Khan A.A.

Vlasov A.V.

Fedjukin D.L.

Vinogradov V.M.

Khutsishvili V.G.

Krjuchkov M.Ja.

Tsyganov Ju.V.

Kazikaev V.D.

Mar'In V.V.

Nikitin V.V.

Dates

1994-12-15—Published

1990-04-09—Filed

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