Tamping device

Details Tamping device Tamping device

2005-03-24

2011-11-01

Hartmann, Gary S (Department: 3671)

Road structure, process, or apparatus

Apparatus

Tamper

C404S133050

Reexamination Certificate

active

08047742

ABSTRACT:
A vibrating plate serving as a tamping device comprises an upper mass equipped with a drive and comprises at least two lower masses, which are coupled to the upper mass while being able to oscillate relative to the upper mass. Each of the lower masses comprises a soil contacting plate and at least one oscillator assigned to this soil contacting plate. The oscillators can be controlled differently so that, in addition to an advancing and compacting action, a turning moment can be executed about a vertical axis (Z).

REFERENCES:
patent: 3283677 (1966-11-01), Uebel
patent: 3923412 (1975-12-01), Linz
patent: 4127351 (1978-11-01), Vural
patent: 6394697 (2002-05-01), De Boer
patent: 6846128 (2005-01-01), Sick
patent: 7117758 (2006-10-01), Riedl
patent: 7144195 (2006-12-01), McCoskey
patent: 7354221 (2008-04-01), Congdon
patent: 864 263 (1953-01-01), None
patent: 805 643 (1958-12-01), None
patent: 02/35005 (2002-05-01), None

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