Abstract: The compressed air vibrator has a housing (1) with an inlet opening (8) for admitting compressed air to a chamber (14) and an outlet opening (9) for the exit of air from the chamber (14). Ball bearing assemblies (11, 15) are disposed with slight play on the shafts (2a, 2b) of the rotor (2). These ball bearings are fitted, also with slight play, in bores (12a, 13a) of oppositely located covers (12, 13) that close about the rotor (2) and close the open ends of chamber (14). The play is adjusted in such a way that the outer races (11a, 15a) of the ball bearings turn in the bores (12a, 13a) of the covers during the rotational movement of the rotor (2). The vibrator also can include a counter-flow air brake to slow rotor rotation.

Abstract: A compressed-air vibrator with a turbine drive, which includes an unbalanced cylindrical rotor, an essentially closed housing having a cylindrical chamber in which the rotor is rotatably supported, with an inlet opening on the housing for the inlet of compressed air into the chamber, and with a discharge opening for the egress of air from the chamber. The rotor is constituted of at least two segments which possess different specific weights to provide the necessary imbalance.

Abstract: A compressed-air vibrator with a cylindrical housing confined between closure covers, within which there is arranged a piston reciprocated by the compressed air, whereby the compressed air is alternatingly introduced into the two working chambers through a central inlet groove in the cylinder bore and through axial bores which discharge through the end surfaces of the piston, and wherein the air is conveyed out of the chambers through outlets which are controlled by the piston edges.

Abstract: The sound absorber includes a main body (1), a housing component (2) attached thereon and a cap (3) threaded onto the main body. The compressed air exiting from the compressed-air vibrator flows from a first chamber (4) into a second chamber (5) provided with labyrinth-like baffles (7) and from there into a larger third chamber (6). The relieved compressed air then flows outside through an annular outlet slit (8a). Through rotation of the cap (3) there can be varied the cross-section of the outlet slit (8a). The cap (3) thereby also serves as a throttle valve.The sound absorber is insensitive to oil-containing compressed air and, without an auxiliary throttle valve, facilitates a correlatable throttle of the exiting compressed air.