Pneumatic motor

Details Pneumatic motor Pneumatic motor

1981-08-07

1983-10-04

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181264, 173DIG2, F01N 108

Patent

active

044073909

ABSTRACT:
Reciprocating pneumatic motor for rock drills and the like wherein a freely-movable hammer piston repeatedly strikes the end of a drill rod, usually a rotating drill rod. Fluid under pressure enters a single, central inlet port in the wall of a cylinder which houses the piston with alternate cycling ports being incorporated into the piston itself. Also disclosed is a novel muffler for such a pneumatic motor.

REFERENCES:
patent: 3402560 (1968-09-01), Alm
patent: 3719251 (1973-03-01), Hedrick
patent: 4189917 (1980-02-01), Gunning

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