Concrete vibrator

Agitating – By vibration – Vibrator actuated by fluid under pressure

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Details

366122, B01F 1100

Patent

active

044286783

ABSTRACT:
A vibrator is provided which includes a free rolling rotor contained in a housing having a nose end portion. The rotor has a number of pockets for receiving ball pistons. Each pocket communicates with a valve port. Pressurized fluid sequentially passes through each valve port to the pocket with which the particular valve port communicates. In the pocket accessed by the pressurized fluid, a fluid chamber is created. The ball piston prevents the escape of fluid outwardly of the rotor. The pressurized fluid, in each accessed fluid chamber, causes the rotor to roll in the housing. The rotor rolling around within the housing applies centrifugal forces to the inside wall of the housing to produce vibrations. The fluid escapes from the rotor using the same valve ports which deliver the pressurized fluid. In addition, an assembly is provided in the housing to prevent the separation of the nose end portion from the housing when the nose end portion becomes worn and tends to separate from the housing.

REFERENCES:
patent: 2187088 (1940-01-01), Malan
patent: 2215888 (1940-09-01), Swarthout
patent: 2763472 (1956-09-01), Fontaine
patent: 3182964 (1965-05-01), Malan
patent: 3235230 (1966-02-01), Malan
patent: 3282570 (1966-11-01), Malan
patent: 3400913 (1968-09-01), Matson
patent: 3650509 (1972-03-01), Swerdfeger
patent: 4293231 (1981-10-01), Lyle

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