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2 068 945

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C1

(51)

IPC

(21) (22)

Application

4861289/03, 1990-08-20

(22)

Actual filing date

1990-08-20

(45)

Published

1996-11-10

(72)

Inventor

Mal'Tsev A.V.Nevolin V.G.

(73)

Holder

Permskij Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti

PRESSURE COMPENSATOR FOR BLASTING OPERATIONS IN BLAST-HOLE Russian patent published in 1996 - IPC

Abstract RU 2068945 C1

FIELD: blasting operations. SUBSTANCE: the compensator has casing 1 at least with one cavity 2, whose inlet 3 is sealed by a safety element in the form of breakable diaphragm 4 and elastic plug 5, the compensator is enclosed at least in one similar hollow casing 6. EFFECT: improved design. 1 dwg

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RU 2 068 945 C1

Authors

Mal'Tsev A.V.

Nevolin V.G.

Dates

1996-11-10—Published

1990-08-20—Filed

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