Working machine with reduced upper mass vibrations

Details Working machine with reduced upper mass vibrations Working machine with reduced upper mass vibrations

2005-02-15

2005-02-15

Will, Thomas B. (Department: 3671)

Road structure, process, or apparatus

Apparatus

Tamper

C404S133050

Reexamination Certificate

active

06854923

ABSTRACT:
A tamping machine for compacting soil has a crank mechanism for producing a directed vibration. The crank mechanism is coupled to a spring assembly. The parts of the crank mechanism which move back and forth linearly are made from a material with a density less than that of steel. This construction prevents vibrations which are unpleasant for the person operating the working machine from occurring.

REFERENCES:
patent: 3957309 (1976-05-01), Darda
patent: 4557336 (1985-12-01), DeNise
patent: 5340233 (1994-08-01), Motl
patent: 5645370 (1997-07-01), Zurbes et al.

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