Concrete strike-off vibrator

Details Concrete strike-off vibrator Concrete strike-off vibrator

1977-09-19

1980-03-04

Maslousky, Paul E.

Motors: expansible chamber type

Cyclically operable

Valveless distribution

92169, F01L 2102, F16J 1102

Patent

active

041910931

ABSTRACT:
A concrete strike-off vibrator is characterized by a manifold member having at least one cylinder assembly disposed in a force-transmitting relationship therewithin. The manifold includes a pressurized fluid inlet adapted to introduce a pressurized fluid into the interior volume of the manifold. The cylinder assembly includes a piston adapted to define first and second volumes within the cylinder assembly and has associated therewith an intake for introducing pressurized fluid from the interior volume of the manifold into the first and second volumes defined within the cylinder assembly. Included is an exhaust isolated from the intake and from the interior volume of the manifold for venting the first and the second volumes within the interior of the cylinder assembly.

REFERENCES:
patent: 1585740 (1926-05-01), Saulia
patent: 1940388 (1933-12-01), Callahan
patent: 2536595 (1951-01-01), Dittmann
patent: 2607569 (1952-08-01), Pierre
patent: 2797664 (1957-07-01), Swanson
patent: 2861548 (1958-11-01), Burgess, Jr. et al.

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