AIR-OPERATED PERCUSSION DEVICE Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: device comprises housing, striker that forms the front chamber together with the housing and is provided with radial ports, and staged air distributing branch pipe with through axial space whose greater stage is received in the striker and smaller one is in the rear end face of the housing. The front parts of the housing are provided with through openings wherein a pipe is received. One end of the pipe is mounted in the front end face of the housing for permitting connection to the air supply pipe line. The pipe line is connected either with the pipe line, the smaller step of the branch pipe being closed with a plug, or with the smaller step of the branch pipe, the pipe line being closed with a plug. EFFECT: enhanced efficiency. 5 dwg