Percussion device

Details Percussion device Percussion device

2006-03-22

2011-11-22

Durand, Paul (Department: 3721)

Tool driving or impacting

Processes

C173S004000, C173S114000

Reexamination Certificate

active

08061434

ABSTRACT:
A method for controlling the operation of a pressure fluid operated percussion device and to a pressure fluid operated percussion device. The method includes influencing the shape of a stress wave by setting a suitable clearance between a transmission piston and a tool. The percussion device is provided with a device for setting the clearance between the transmission piston and the tool.

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PCT Written Opinion and International Search Report mailed Jun. 28, 2006 issued in PCT/FI2006/050109.

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