Device for compressing concrete during the manufacture of...

Details Device for compressing concrete during the manufacture of... Device for compressing concrete during the manufacture of...

2005-02-04

2008-12-16

Mackey, James (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

With sound muffling or dampening means

C425S432000

Reexamination Certificate

active

07465161

ABSTRACT:
The invention relates to a device for compressing concrete during the manufacture of concrete parts. Said device comprises a supporting structure, a formwork device which is maintained by the supporting structure and a vibration decoupling device which is arranged between the supporting structure and formwork device. The vibrations required to compress concrete are produced by a vibration device acting directly upon the formwork device. In order to reduce noise emission, the mass of the supporting structure is selected in such a way that the intrinsic frequency of a system consisting of the supporting structure and vibration decoupling device is lower than the excitation frequency of the vibration device. Preferably, the formwork device, vibration decoupling device, vibrators and all electrical feed lines and connections are premounted, forming a module which can then be mounted on the supporting structure.

REFERENCES:
patent: 6152722 (2000-11-01), Sick et al.
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patent: 3427780 (1986-01-01), None
patent: 196 31 516 (1998-02-01), None
patent: 1 293 314 (2003-03-01), None
patent: 09 234714 (1997-09-01), None

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