GEAR TO EXPAND PIPES

FIELD: expansion of articles manufactured from profile pipes in holes. SUBSTANCE: invention specifically refers to profile shut-off valves. Gear includes body with central valve Eccentric members in the form of bushings are put on body. Bushings have collars and engage one another. Eccentric bushing...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	VIL'DANOV N.N, FILIPPOV V.P, ABDRAKHMANOV G.S, KIRSHIN A.V, ZAJNULLIN A.G, TAKHAUTDINOV SH.F, RYBALKO A.F
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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