HYDRAULIC GRIP Russian patent published in 2006 - IPC B66C1/56 

Abstract RU 2274598 C2

FIELD: oil producing and gas industry.

SUBSTANCE: invention relates to hydraulic grips used for turning filed pipelines. Proposed hydraulic grip has housing with hydraulic cylinder and guide rod connected with gripping member which, in its turn, is rigidly coupled with housing and furnished with gripping part in form of closing member. Device is furnished also with upper and lower detachable friction cover plates, inner radius of curvature of said plates being equal to outer diameter of pipe.

EFFECT: increased service line, improved reliability and capacity of field pipelines subjected to slot wear.

2 dwg

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RU 2 274 598 C2

Authors

Merzljakov Vladimir Filippovich

Volochkov Nikolaj Semenovich

Mukhutdinov Rashit Imamutdinovich

Sultanmagomedov Sultanmagomed Magomedtagirovich

Kalimullin Al'Bert Akhmetovich

Nagumanov Kim Nagimovich

Agafonov Anatolij Mikhajlovich

Dates

2006-04-20Published

2003-09-30Filed