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2 027 845

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IPC

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Application

4734169/03, 1989-09-04

(22)

Actual filing date

1989-09-04

(45)

Published

1995-01-27

(72)

Inventor

Zil'Berberg Jurij AleksandrovichSudnitsin Vladimir NikolaevichBelousova Ol'Ga Vasil'Evna

(73)

Holder

Zil'Berberg Jurij AleksandrovichSudnitsin Vladimir NikolaevichBelousova Ol'Ga Vasil'Evna

PIPE CATCHING MECHANISM Russian patent published in 1995 - IPC

Abstract RU 2027845 C1

FIELD: making-and-breaking of drilling pipes and casings. SUBSTANCE: pipe catching mechanism has closed body, driving ring with catching members installed for motion in direction of caught pipes, safety bushing movable in axial direction and located inside driving ring to overlap catching members in initial position. Catching members have bevelled slip surfaces for interaction with lower end of safety bushing and installed for turning in horizontal plane. EFFECT: higher efficiency. 5 dwg

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RU 2 027 845 C1

Authors

Zil'Berberg Jurij Aleksandrovich

Sudnitsin Vladimir Nikolaevich

Belousova Ol'Ga Vasil'Evna

Dates

1995-01-27—Published

1989-09-04—Filed

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