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2 012 758

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IPC

(21) (22)

Application

4930433/03, 1991-03-12

(22)

Actual filing date

1991-03-12

(45)

Published

1994-05-15

(72)

Inventor

Verstov V.V.Alekseev O.V.Jakovlev B.Ja.Alborov A.I.Tarabukin V.I.Ustjuzhaninov A.P.

(73)

Holder

Gosudarstvennoe Predprijatie Nauchno-Issledovatel'Skij Institut Gidromekhanizatsii, Sanitarno-Tekhnicheskikh I Spetsial'Nykh Stroitel'Nykh Rabot

PERCUSSIVE DEVICE FOR HOLE DRILLING Russian patent published in 1994 - IPC

Abstract RU 2012758 C1

FIELD: drilling. SUBSTANCE: device includes hollow shaft 2 with circular anvil 4, rock cutting tool 1 which is secured to lower part of circular anvil. Circular percussive weight 3 with toothed bosses 7 is installed coaxially to shaft 2. Circular anvil 4 has toothed bosses 7 interacting toothed bosses of circular percussive weight. Upper and lower parts of circular percussive weight have recesses 8 and 9 uniformly spaced over its periphery. Installed in recesses are sleeves for longitudinal motion. Ribs 15 of circular percussive weight are made in form of flexible arc-shaped members whose ends are hinged to sleeves. EFFECT: higher efficiency. 3 dwg

Similar patents RU2012758C1

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RU 2 012 758 C1

Authors

Verstov V.V.

Alekseev O.V.

Jakovlev B.Ja.

Alborov A.I.

Tarabukin V.I.

Ustjuzhaninov A.P.

Dates

1994-05-15—Published

1991-03-12—Filed