DE3152381

PCT No. PCT/SU81/00042 Sec. 371 Date Mar. 12, 1982 Sec. 102(e) Date Mar. 12, 1982 PCT Filed Apr. 28, 1981 PCT Pub. No. WO82/03886 PCT Pub. Date Nov. 11, 1982.A casing having a gear ring formed on its inner wall and closed at each end with a cover is provided with two half-couplings arranged coaxiall...

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Hauptverfasser:	VADETSKY, JURIJ V., MOSKVA, SU, BALDENKO, DMITRIJ F, SEMENETS, VALERIJ I., MOSKVA, SU, GUSMAN, MOISEI T., MOSKVA, SU, GOLDOBIN, VLADIMIR B., PERM, SU, NIKOMAROV, SAMUIL S., PERM, SU, KOCHNEV, ANATOLIJ M
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Zusammenfassung:	PCT No. PCT/SU81/00042 Sec. 371 Date Mar. 12, 1982 Sec. 102(e) Date Mar. 12, 1982 PCT Filed Apr. 28, 1981 PCT Pub. No. WO82/03886 PCT Pub. Date Nov. 11, 1982.A casing having a gear ring formed on its inner wall and closed at each end with a cover is provided with two half-couplings arranged coaxially and having outer gear rings engaging the gear ring of the casing. A ball is disposed between the two half-couplings and the interior is filled with a lubricant. A seal is placed in the casing between each cover and the respective end face of the gear ring. Each seal is made out of an elastic material in the form of a sleeve embracing the half-coupling, and has one end abutting upon the end face of the gear ring and its other end secured to the half-coupling.