ROLLER-CUTTER REAMER Russian patent published in 1994 - IPC

Abstract RU 2021472 C1

FIELD: drilling equipment. SUBSTANCE: plates have longitudinal rectangular recesses. Lugs have slots mating recess side walls. Threaded members are made in form of stop screws. Screws are installed square to recess side walls for interaction with their ends with bevelled back surfaces of lugs. EFFECT: extended functional capabilities due to provision of use of different in shape lugs and higher reliability. 4 dwg

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RU 2 021 472 C1

Authors

Plokhikh V.A.

Olejnik V.V.

Popov A.N.

Dates

1994-10-15—Published

1991-04-08—Filed