Hydraulically powered rotary percussive machines

Details Hydraulically powered rotary percussive machines Hydraulically powered rotary percussive machines

1987-04-23

1989-07-11

Yost, Frank T.

Tool driving or impacting

Impacting devices

With means for rotating tool

91532, B23B 4516

Patent

active

048462888

ABSTRACT:
A single supply line feeds hydraulic fluid under pressure to a hydraulic percussive machine with a percussion motor and a rotation motor. A constant flow device is positioned between the supply line and the rotation motor.

REFERENCES:
patent: 1572371 (1926-02-01), Smith
patent: 3385378 (1968-05-01), Weber et al.
patent: 4430926 (1984-02-01), Wallace

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